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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Anchordoqui%2C+L&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Anchordoqui%2C+L&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Anchordoqui%2C+L&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.04175">arXiv:2411.04175</a> <span> [<a href="https://arxiv.org/pdf/2411.04175">pdf</a>, <a href="https://arxiv.org/format/2411.04175">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Science and Project Planning for the Forward Physics Facility in Preparation for the 2024-2026 European Particle Physics Strategy Update </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+J">Jyotismita Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Ariga%2C+A">Akitaka Ariga</a>, <a href="/search/hep-ex?searchtype=author&query=Ariga%2C+T">Tomoko Ariga</a>, <a href="/search/hep-ex?searchtype=author&query=Barr%2C+A+J">Alan J. Barr</a>, <a href="/search/hep-ex?searchtype=author&query=Batell%2C+B">Brian Batell</a>, <a href="/search/hep-ex?searchtype=author&query=Bian%2C+J">Jianming Bian</a>, <a href="/search/hep-ex?searchtype=author&query=Boyd%2C+J">Jamie Boyd</a>, <a href="/search/hep-ex?searchtype=author&query=Citron%2C+M">Matthew Citron</a>, <a href="/search/hep-ex?searchtype=author&query=De+Roeck%2C+A">Albert De Roeck</a>, <a href="/search/hep-ex?searchtype=author&query=Diwan%2C+M+V">Milind V. Diwan</a>, <a href="/search/hep-ex?searchtype=author&query=Feng%2C+J+L">Jonathan L. Feng</a>, <a href="/search/hep-ex?searchtype=author&query=Hill%2C+C+S">Christopher S. Hill</a>, <a href="/search/hep-ex?searchtype=author&query=Jeong%2C+Y+S">Yu Seon Jeong</a>, <a href="/search/hep-ex?searchtype=author&query=Kling%2C+F">Felix Kling</a>, <a href="/search/hep-ex?searchtype=author&query=Linden%2C+S">Steven Linden</a>, <a href="/search/hep-ex?searchtype=author&query=M%C3%A4kel%C3%A4%2C+T">Toni M盲kel盲</a>, <a href="/search/hep-ex?searchtype=author&query=Mavrokoridis%2C+K">Kostas Mavrokoridis</a>, <a href="/search/hep-ex?searchtype=author&query=McFayden%2C+J">Josh McFayden</a>, <a href="/search/hep-ex?searchtype=author&query=Otono%2C+H">Hidetoshi Otono</a>, <a href="/search/hep-ex?searchtype=author&query=Rojo%2C+J">Juan Rojo</a>, <a href="/search/hep-ex?searchtype=author&query=Soldin%2C+D">Dennis Soldin</a>, <a href="/search/hep-ex?searchtype=author&query=Stasto%2C+A">Anna Stasto</a>, <a href="/search/hep-ex?searchtype=author&query=Trojanowski%2C+S">Sebastian Trojanowski</a>, <a href="/search/hep-ex?searchtype=author&query=Vicenzi%2C+M">Matteo Vicenzi</a> , et al. (1 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.04175v1-abstract-short" style="display: inline;"> The recent direct detection of neutrinos at the LHC has opened a new window on high-energy particle physics and highlighted the potential of forward physics for groundbreaking discoveries. In the last year, the physics case for forward physics has continued to grow, and there has been extensive work on defining the Forward Physics Facility and its experiments to realize this physics potential in a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.04175v1-abstract-full').style.display = 'inline'; document.getElementById('2411.04175v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.04175v1-abstract-full" style="display: none;"> The recent direct detection of neutrinos at the LHC has opened a new window on high-energy particle physics and highlighted the potential of forward physics for groundbreaking discoveries. In the last year, the physics case for forward physics has continued to grow, and there has been extensive work on defining the Forward Physics Facility and its experiments to realize this physics potential in a timely and cost-effective manner. Following a 2-page Executive Summary, we present the status of the FPF, beginning with the FPF's unique potential to shed light on dark matter, new particles, neutrino physics, QCD, and astroparticle physics. We summarize the current designs for the Facility and its experiments, FASER2, FASER$谓$2, FORMOSA, and FLArE, and conclude by discussing international partnerships and organization, and the FPF's schedule, budget, and technical coordination. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.04175v1-abstract-full').style.display = 'none'; document.getElementById('2411.04175v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">32 pages</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.12656">arXiv:2311.12656</a> <span> [<a href="https://arxiv.org/pdf/2311.12656">pdf</a>, <a href="https://arxiv.org/format/2311.12656">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-023-12090-w">10.1140/epjc/s10052-023-12090-w <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Developments and results in the context of the JEM-EUSO program obtained with the ESAF Simulation and Analysis Framework </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Abe%2C+S">S. Abe</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+H">J. H. Adams Jr.</a>, <a href="/search/hep-ex?searchtype=author&query=Allard%2C+D">D. Allard</a>, <a href="/search/hep-ex?searchtype=author&query=Alldredge%2C+P">P. Alldredge</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Anzalone%2C+A">A. Anzalone</a>, <a href="/search/hep-ex?searchtype=author&query=Arnone%2C+E">E. Arnone</a>, <a href="/search/hep-ex?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/hep-ex?searchtype=author&query=Barghini%2C+D">D. Barghini</a>, <a href="/search/hep-ex?searchtype=author&query=Battisti%2C+M">M. Battisti</a>, <a href="/search/hep-ex?searchtype=author&query=Bayer%2C+J">J. Bayer</a>, <a href="/search/hep-ex?searchtype=author&query=Bellotti%2C+R">R. Bellotti</a>, <a href="/search/hep-ex?searchtype=author&query=Belov%2C+A+A">A. A. Belov</a>, <a href="/search/hep-ex?searchtype=author&query=Bertaina%2C+M">M. Bertaina</a>, <a href="/search/hep-ex?searchtype=author&query=Bertone%2C+P+F">P. F. Bertone</a>, <a href="/search/hep-ex?searchtype=author&query=Bianciotto%2C+M">M. Bianciotto</a>, <a href="/search/hep-ex?searchtype=author&query=Biermann%2C+P+L">P. L. Biermann</a>, <a href="/search/hep-ex?searchtype=author&query=Bisconti%2C+F">F. Bisconti</a>, <a href="/search/hep-ex?searchtype=author&query=Blaksley%2C+C">C. Blaksley</a>, <a href="/search/hep-ex?searchtype=author&query=Blin-Bondil%2C+S">S. Blin-Bondil</a>, <a href="/search/hep-ex?searchtype=author&query=Bobik%2C+P">P. Bobik</a>, <a href="/search/hep-ex?searchtype=author&query=Bolmgren%2C+K">K. Bolmgren</a>, <a href="/search/hep-ex?searchtype=author&query=Briz%2C+S">S. Briz</a>, <a href="/search/hep-ex?searchtype=author&query=Burton%2C+J">J. Burton</a>, <a href="/search/hep-ex?searchtype=author&query=Cafagna%2C+F">F. Cafagna</a> , et al. (150 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.12656v1-abstract-short" style="display: inline;"> JEM--EUSO is an international program for the development of space-based Ultra-High Energy Cosmic Ray observatories. The program consists of a series of missions which are either under development or in the data analysis phase. All instruments are based on a wide-field-of-view telescope, which operates in the near-UV range, designed to detect the fluorescence light emitted by extensive air showers… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.12656v1-abstract-full').style.display = 'inline'; document.getElementById('2311.12656v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.12656v1-abstract-full" style="display: none;"> JEM--EUSO is an international program for the development of space-based Ultra-High Energy Cosmic Ray observatories. The program consists of a series of missions which are either under development or in the data analysis phase. All instruments are based on a wide-field-of-view telescope, which operates in the near-UV range, designed to detect the fluorescence light emitted by extensive air showers in the atmosphere. We describe the simulation software ESAFin the framework of the JEM--EUSO program and explain the physical assumptions used. We present here the implementation of the JEM--EUSO, POEMMA, K--EUSO, TUS, Mini--EUSO, EUSO--SPB1 and EUSO--TA configurations in ESAF. For the first time ESAF simulation outputs are compared with experimental data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.12656v1-abstract-full').style.display = 'none'; document.getElementById('2311.12656v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 83, 1028 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.09978">arXiv:2211.09978</a> <span> [<a href="https://arxiv.org/pdf/2211.09978">pdf</a>, <a href="https://arxiv.org/format/2211.09978">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Snowmass Cosmic Frontier Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Chou%2C+A+S">Aaron S. Chou</a>, <a href="/search/hep-ex?searchtype=author&query=Soares-Santos%2C+M">Marcelle Soares-Santos</a>, <a href="/search/hep-ex?searchtype=author&query=Tait%2C+T+M+P">Tim M. P. Tait</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikari%2C+R+X">Rana X. Adhikari</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Annis%2C+J">James Annis</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+C+L">Clarence L. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Cooley%2C+J">Jodi Cooley</a>, <a href="/search/hep-ex?searchtype=author&query=Drlica-Wagner%2C+A">Alex Drlica-Wagner</a>, <a href="/search/hep-ex?searchtype=author&query=Fang%2C+K">Ke Fang</a>, <a href="/search/hep-ex?searchtype=author&query=Flaugher%2C+B">Brenna Flaugher</a>, <a href="/search/hep-ex?searchtype=author&query=Jaeckel%2C+J">Joerg Jaeckel</a>, <a href="/search/hep-ex?searchtype=author&query=Lippincott%2C+W+H">W. Hugh Lippincott</a>, <a href="/search/hep-ex?searchtype=author&query=Miranda%2C+V">Vivian Miranda</a>, <a href="/search/hep-ex?searchtype=author&query=Newburgh%2C+L">Laura Newburgh</a>, <a href="/search/hep-ex?searchtype=author&query=Newman%2C+J+A">Jeffrey A. Newman</a>, <a href="/search/hep-ex?searchtype=author&query=Prescod-Weinstein%2C+C">Chanda Prescod-Weinstein</a>, <a href="/search/hep-ex?searchtype=author&query=Rybka%2C+G">Gray Rybka</a>, <a href="/search/hep-ex?searchtype=author&query=Sathyaprakash%2C+B+S">B. S. Sathyaprakash</a>, <a href="/search/hep-ex?searchtype=author&query=Schlegel%2C+D+J">David J. Schlegel</a>, <a href="/search/hep-ex?searchtype=author&query=Slatyer%2C+D+M+S+T+R">Deirdre M. Shoemaker Tracy R. Slatyer</a>, <a href="/search/hep-ex?searchtype=author&query=Slosar%2C+A">Anze Slosar</a>, <a href="/search/hep-ex?searchtype=author&query=Tollefson%2C+K">Kirsten Tollefson</a>, <a href="/search/hep-ex?searchtype=author&query=Winslow%2C+L">Lindley Winslow</a>, <a href="/search/hep-ex?searchtype=author&query=Yu%2C+H">Hai-Bo Yu</a> , et al. (6 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.09978v1-abstract-short" style="display: inline;"> This report summarizes the current status of Cosmic Frontier physics and the broad and exciting future prospects identified for the Cosmic Frontier as part of the 2021 Snowmass Process. </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.09978v1-abstract-full" style="display: none;"> This report summarizes the current status of Cosmic Frontier physics and the broad and exciting future prospects identified for the Cosmic Frontier as part of the 2021 Snowmass Process. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.09978v1-abstract-full').style.display = 'none'; document.getElementById('2211.09978v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">55 pages. Contribution to the 2021 Snowmass Summer Study</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> UCI-HEP-TR-2022-26 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.05845">arXiv:2205.05845</a> <span> [<a href="https://arxiv.org/pdf/2205.05845">pdf</a>, <a href="https://arxiv.org/format/2205.05845">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.astropartphys.2023.102819">10.1016/j.astropartphys.2023.102819 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ultra-High-Energy Cosmic Rays: The Intersection of the Cosmic and Energy Frontiers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Coleman%2C+A">A. Coleman</a>, <a href="/search/hep-ex?searchtype=author&query=Eser%2C+J">J. Eser</a>, <a href="/search/hep-ex?searchtype=author&query=Mayotte%2C+E">E. Mayotte</a>, <a href="/search/hep-ex?searchtype=author&query=Sarazin%2C+F">F. Sarazin</a>, <a href="/search/hep-ex?searchtype=author&query=Schr%C3%B6der%2C+F+G">F. G. Schr枚der</a>, <a href="/search/hep-ex?searchtype=author&query=Soldin%2C+D">D. Soldin</a>, <a href="/search/hep-ex?searchtype=author&query=Venters%2C+T+M">T. M. Venters</a>, <a href="/search/hep-ex?searchtype=author&query=Aloisio%2C+R">R. Aloisio</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">R. Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Bergman%2C+D">D. Bergman</a>, <a href="/search/hep-ex?searchtype=author&query=Bertaina%2C+M">M. Bertaina</a>, <a href="/search/hep-ex?searchtype=author&query=Caccianiga%2C+L">L. Caccianiga</a>, <a href="/search/hep-ex?searchtype=author&query=Deligny%2C+O">O. Deligny</a>, <a href="/search/hep-ex?searchtype=author&query=Dembinski%2C+H+P">H. P. Dembinski</a>, <a href="/search/hep-ex?searchtype=author&query=Denton%2C+P+B">P. B. Denton</a>, <a href="/search/hep-ex?searchtype=author&query=di+Matteo%2C+A">A. di Matteo</a>, <a href="/search/hep-ex?searchtype=author&query=Globus%2C+N">N. Globus</a>, <a href="/search/hep-ex?searchtype=author&query=Glombitza%2C+J">J. Glombitza</a>, <a href="/search/hep-ex?searchtype=author&query=Golup%2C+G">G. Golup</a>, <a href="/search/hep-ex?searchtype=author&query=Haungs%2C+A">A. Haungs</a>, <a href="/search/hep-ex?searchtype=author&query=H%C3%B6randel%2C+J+R">J. R. H枚randel</a>, <a href="/search/hep-ex?searchtype=author&query=Jaffe%2C+T+R">T. R. Jaffe</a>, <a href="/search/hep-ex?searchtype=author&query=Kelley%2C+J+L">J. L. Kelley</a>, <a href="/search/hep-ex?searchtype=author&query=Krizmanic%2C+J+F">J. F. Krizmanic</a> , et al. (73 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2205.05845v4-abstract-short" style="display: inline;"> The present white paper is submitted as part of the "Snowmass" process to help inform the long-term plans of the United States Department of Energy and the National Science Foundation for high-energy physics. It summarizes the science questions driving the Ultra-High-Energy Cosmic-Ray (UHECR) community and provides recommendations on the strategy to answer them in the next two decades. </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.05845v4-abstract-full" style="display: none;"> The present white paper is submitted as part of the "Snowmass" process to help inform the long-term plans of the United States Department of Energy and the National Science Foundation for high-energy physics. It summarizes the science questions driving the Ultra-High-Energy Cosmic-Ray (UHECR) community and provides recommendations on the strategy to answer them in the next two decades. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.05845v4-abstract-full').style.display = 'none'; document.getElementById('2205.05845v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Prepared as a solicited white paper for the 2021 Snowmass process. To be published in the Journal of High Energy Astrophysics. v2: fixed typos in author list. v3: included all community feedback received by July 1st 2022 and added the list of endorsers. v4 is the post-reviewer preprint accepted to Astroparticle Physics vol. 149</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Astroparticle Physics Volume 149, July 2023, 102819 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.10811">arXiv:2203.10811</a> <span> [<a href="https://arxiv.org/pdf/2203.10811">pdf</a>, <a href="https://arxiv.org/format/2203.10811">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-022-11049-7">10.1140/epjc/s10052-022-11049-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Snowmass White Paper: Beyond the Standard Model effects on Neutrino Flavor </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Arg%C3%BCelles%2C+C+A">C. A. Arg眉elles</a>, <a href="/search/hep-ex?searchtype=author&query=Barenboim%2C+G">G. Barenboim</a>, <a href="/search/hep-ex?searchtype=author&query=Bustamante%2C+M">M. Bustamante</a>, <a href="/search/hep-ex?searchtype=author&query=Coloma%2C+P">P. Coloma</a>, <a href="/search/hep-ex?searchtype=author&query=Denton%2C+P+B">P. B. Denton</a>, <a href="/search/hep-ex?searchtype=author&query=Esteban%2C+I">I. Esteban</a>, <a href="/search/hep-ex?searchtype=author&query=Farzan%2C+Y">Y. Farzan</a>, <a href="/search/hep-ex?searchtype=author&query=Mart%C3%ADnez%2C+E+F">E. Fern谩ndez Mart铆nez</a>, <a href="/search/hep-ex?searchtype=author&query=Forero%2C+D+V">D. V. Forero</a>, <a href="/search/hep-ex?searchtype=author&query=Gago%2C+A+M">A. M. Gago</a>, <a href="/search/hep-ex?searchtype=author&query=Katori%2C+T">T. Katori</a>, <a href="/search/hep-ex?searchtype=author&query=Lehnert%2C+R">R. Lehnert</a>, <a href="/search/hep-ex?searchtype=author&query=Ross-Lonergan%2C+M">M. Ross-Lonergan</a>, <a href="/search/hep-ex?searchtype=author&query=Suliga%2C+A+M">A. M. Suliga</a>, <a href="/search/hep-ex?searchtype=author&query=Tabrizi%2C+Z">Z. Tabrizi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Chakraborty%2C+K">K. Chakraborty</a>, <a href="/search/hep-ex?searchtype=author&query=Conrad%2C+J">J. Conrad</a>, <a href="/search/hep-ex?searchtype=author&query=Das%2C+A">A. Das</a>, <a href="/search/hep-ex?searchtype=author&query=Fong%2C+C+S">C. S. Fong</a>, <a href="/search/hep-ex?searchtype=author&query=Littlejohn%2C+B+R">B. R. Littlejohn</a>, <a href="/search/hep-ex?searchtype=author&query=Maltoni%2C+M">M. Maltoni</a>, <a href="/search/hep-ex?searchtype=author&query=Parno%2C+D">D. Parno</a>, <a href="/search/hep-ex?searchtype=author&query=Spitz%2C+J">J. Spitz</a>, <a href="/search/hep-ex?searchtype=author&query=Tang%2C+J">J. Tang</a> , et al. (1 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.10811v2-abstract-short" style="display: inline;"> Neutrinos are one of the most promising messengers for signals of new physics Beyond the Standard Model (BSM). On the theoretical side, their elusive nature, combined with their unknown mass mechanism, seems to indicate that the neutrino sector is indeed opening a window to new physics. On the experimental side, several long-standing anomalies have been reported in the past decades, providing a st… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.10811v2-abstract-full').style.display = 'inline'; document.getElementById('2203.10811v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.10811v2-abstract-full" style="display: none;"> Neutrinos are one of the most promising messengers for signals of new physics Beyond the Standard Model (BSM). On the theoretical side, their elusive nature, combined with their unknown mass mechanism, seems to indicate that the neutrino sector is indeed opening a window to new physics. On the experimental side, several long-standing anomalies have been reported in the past decades, providing a strong motivation to thoroughly test the standard three-neutrino oscillation paradigm. In this Snowmass21 white paper, we explore the potential of current and future neutrino experiments to explore BSM effects on neutrino flavor during the next decade. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.10811v2-abstract-full').style.display = 'none'; document.getElementById('2203.10811v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">54 pages plus references. Contact authors: P. Coloma, D. V. Forero and T. Katori. Comments welcome. Contribution to Snowmass 2021. v2 incorporates community feedback</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.05090">arXiv:2203.05090</a> <span> [<a href="https://arxiv.org/pdf/2203.05090">pdf</a>, <a href="https://arxiv.org/format/2203.05090">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1361-6471/ac865e">10.1088/1361-6471/ac865e <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Forward Physics Facility at the High-Luminosity LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Feng%2C+J+L">Jonathan L. Feng</a>, <a href="/search/hep-ex?searchtype=author&query=Kling%2C+F">Felix Kling</a>, <a href="/search/hep-ex?searchtype=author&query=Reno%2C+M+H">Mary Hall Reno</a>, <a href="/search/hep-ex?searchtype=author&query=Rojo%2C+J">Juan Rojo</a>, <a href="/search/hep-ex?searchtype=author&query=Soldin%2C+D">Dennis Soldin</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Boyd%2C+J">Jamie Boyd</a>, <a href="/search/hep-ex?searchtype=author&query=Ismail%2C+A">Ahmed Ismail</a>, <a href="/search/hep-ex?searchtype=author&query=Harland-Lang%2C+L">Lucian Harland-Lang</a>, <a href="/search/hep-ex?searchtype=author&query=Kelly%2C+K+J">Kevin J. Kelly</a>, <a href="/search/hep-ex?searchtype=author&query=Pandey%2C+V">Vishvas Pandey</a>, <a href="/search/hep-ex?searchtype=author&query=Trojanowski%2C+S">Sebastian Trojanowski</a>, <a href="/search/hep-ex?searchtype=author&query=Tsai%2C+Y">Yu-Dai Tsai</a>, <a href="/search/hep-ex?searchtype=author&query=Alameddine%2C+J">Jean-Marco Alameddine</a>, <a href="/search/hep-ex?searchtype=author&query=Araki%2C+T">Takeshi Araki</a>, <a href="/search/hep-ex?searchtype=author&query=Ariga%2C+A">Akitaka Ariga</a>, <a href="/search/hep-ex?searchtype=author&query=Ariga%2C+T">Tomoko Ariga</a>, <a href="/search/hep-ex?searchtype=author&query=Asai%2C+K">Kento Asai</a>, <a href="/search/hep-ex?searchtype=author&query=Bacchetta%2C+A">Alessandro Bacchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Balazs%2C+K">Kincso Balazs</a>, <a href="/search/hep-ex?searchtype=author&query=Barr%2C+A+J">Alan J. Barr</a>, <a href="/search/hep-ex?searchtype=author&query=Battistin%2C+M">Michele Battistin</a>, <a href="/search/hep-ex?searchtype=author&query=Bian%2C+J">Jianming Bian</a>, <a href="/search/hep-ex?searchtype=author&query=Bertone%2C+C">Caterina Bertone</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a> , et al. (211 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.05090v1-abstract-short" style="display: inline;"> High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing LHC experiments. The proposed Forward Physics Facility (FPF), to be located several hundred meters from the ATLAS interaction point and shielded by concrete and rock, will host a suite of experiments to probe Standard Mod… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.05090v1-abstract-full').style.display = 'inline'; document.getElementById('2203.05090v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.05090v1-abstract-full" style="display: none;"> High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing LHC experiments. The proposed Forward Physics Facility (FPF), to be located several hundred meters from the ATLAS interaction point and shielded by concrete and rock, will host a suite of experiments to probe Standard Model (SM) processes and search for physics beyond the Standard Model (BSM). In this report, we review the status of the civil engineering plans and the experiments to explore the diverse physics signals that can be uniquely probed in the forward region. FPF experiments will be sensitive to a broad range of BSM physics through searches for new particle scattering or decay signatures and deviations from SM expectations in high statistics analyses with TeV neutrinos in this low-background environment. High statistics neutrino detection will also provide valuable data for fundamental topics in perturbative and non-perturbative QCD and in weak interactions. Experiments at the FPF will enable synergies between forward particle production at the LHC and astroparticle physics to be exploited. We report here on these physics topics, on infrastructure, detector, and simulation studies, and on future directions to realize the FPF's physics potential. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.05090v1-abstract-full').style.display = 'none'; document.getElementById('2203.05090v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">429 pages, contribution to Snowmass 2021</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> UCI-TR-2022-01, CERN-PBC-Notes-2022-001, FERMILAB-PUB-22-094-ND-SCD-T, INT-PUB-22-006, BONN-TH-2022-04 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.10905">arXiv:2109.10905</a> <span> [<a href="https://arxiv.org/pdf/2109.10905">pdf</a>, <a href="https://arxiv.org/format/2109.10905">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physrep.2022.04.004">10.1016/j.physrep.2022.04.004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Forward Physics Facility: Sites, Experiments, and Physics Potential </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Ariga%2C+A">Akitaka Ariga</a>, <a href="/search/hep-ex?searchtype=author&query=Ariga%2C+T">Tomoko Ariga</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Balazs%2C+K">Kincso Balazs</a>, <a href="/search/hep-ex?searchtype=author&query=Batell%2C+B">Brian Batell</a>, <a href="/search/hep-ex?searchtype=author&query=Boyd%2C+J">Jamie Boyd</a>, <a href="/search/hep-ex?searchtype=author&query=Bramante%2C+J">Joseph Bramante</a>, <a href="/search/hep-ex?searchtype=author&query=Campanelli%2C+M">Mario Campanelli</a>, <a href="/search/hep-ex?searchtype=author&query=Carmona%2C+A">Adrian Carmona</a>, <a href="/search/hep-ex?searchtype=author&query=Celiberto%2C+F+G">Francesco G. Celiberto</a>, <a href="/search/hep-ex?searchtype=author&query=Chachamis%2C+G">Grigorios Chachamis</a>, <a href="/search/hep-ex?searchtype=author&query=Citron%2C+M">Matthew Citron</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lellis%2C+G">Giovanni De Lellis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Roeck%2C+A">Albert De Roeck</a>, <a href="/search/hep-ex?searchtype=author&query=Dembinski%2C+H">Hans Dembinski</a>, <a href="/search/hep-ex?searchtype=author&query=Denton%2C+P+B">Peter B. Denton</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Crecsenzo%2C+A">Antonia Di Crecsenzo</a>, <a href="/search/hep-ex?searchtype=author&query=Diwan%2C+M+V">Milind V. Diwan</a>, <a href="/search/hep-ex?searchtype=author&query=Dougherty%2C+L">Liam Dougherty</a>, <a href="/search/hep-ex?searchtype=author&query=Dreiner%2C+H+K">Herbi K. Dreiner</a>, <a href="/search/hep-ex?searchtype=author&query=Du%2C+Y">Yong Du</a>, <a href="/search/hep-ex?searchtype=author&query=Enberg%2C+R">Rikard Enberg</a>, <a href="/search/hep-ex?searchtype=author&query=Farzan%2C+Y">Yasaman Farzan</a>, <a href="/search/hep-ex?searchtype=author&query=Feng%2C+J+L">Jonathan L. Feng</a> , et al. (56 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.10905v2-abstract-short" style="display: inline;"> The Forward Physics Facility (FPF) is a proposal to create a cavern with the space and infrastructure to support a suite of far-forward experiments at the Large Hadron Collider during the High Luminosity era. Located along the beam collision axis and shielded from the interaction point by at least 100 m of concrete and rock, the FPF will house experiments that will detect particles outside the acc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.10905v2-abstract-full').style.display = 'inline'; document.getElementById('2109.10905v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.10905v2-abstract-full" style="display: none;"> The Forward Physics Facility (FPF) is a proposal to create a cavern with the space and infrastructure to support a suite of far-forward experiments at the Large Hadron Collider during the High Luminosity era. Located along the beam collision axis and shielded from the interaction point by at least 100 m of concrete and rock, the FPF will house experiments that will detect particles outside the acceptance of the existing large LHC experiments and will observe rare and exotic processes in an extremely low-background environment. In this work, we summarize the current status of plans for the FPF, including recent progress in civil engineering in identifying promising sites for the FPF and the experiments currently envisioned to realize the FPF's physics potential. We then review the many Standard Model and new physics topics that will be advanced by the FPF, including searches for long-lived particles, probes of dark matter and dark sectors, high-statistics studies of TeV neutrinos of all three flavors, aspects of perturbative and non-perturbative QCD, and high-energy astroparticle physics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.10905v2-abstract-full').style.display = 'none'; document.getElementById('2109.10905v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">revised version, accepted by Physics Reports</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> BNL-222142-2021-FORE, CERN-PBC-Notes-2021-025, DESY-21-142, FERMILAB-CONF-21-452-AE-E-ND-PPD-T, KYUSHU-RCAPP-2021-01, LU TP 21-36, PITT-PACC-2118, SMU-HEP-21-10, UCI-TR-2021-22 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rept. 968 (2022), 1-50 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.11983">arXiv:2103.11983</a> <span> [<a href="https://arxiv.org/pdf/2103.11983">pdf</a>, <a href="https://arxiv.org/format/2103.11983">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/16/07/P07016">10.1088/1748-0221/16/07/P07016 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Extraction of the Muon Signals Recorded with the Surface Detector of the Pierre Auger Observatory Using Recurrent Neural Networks </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Albury%2C+J+M">J. M. Albury</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">R. Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">G. A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andrada%2C+B">B. Andrada</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Ferreira%2C+P+R+A">P. R. Ara煤jo Ferreira</a>, <a href="/search/hep-ex?searchtype=author&query=Vel%C3%A1zquez%2C+J+C+A">J. C. Arteaga Vel谩zquez</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+G">G. Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Badescu%2C+A+M">A. M. Badescu</a>, <a href="/search/hep-ex?searchtype=author&query=Bakalova%2C+A">A. Bakalova</a>, <a href="/search/hep-ex?searchtype=author&query=Balaceanu%2C+A">A. Balaceanu</a>, <a href="/search/hep-ex?searchtype=author&query=Barbato%2C+F">F. Barbato</a>, <a href="/search/hep-ex?searchtype=author&query=Luz%2C+R+J+B">R. J. Barreira Luz</a>, <a href="/search/hep-ex?searchtype=author&query=Becker%2C+K+H">K. H. Becker</a> , et al. (348 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2103.11983v2-abstract-short" style="display: inline;"> The Pierre Auger Observatory, at present the largest cosmic-ray observatory ever built, is instrumented with a ground array of 1600 water-Cherenkov detectors, known as the Surface Detector (SD). The SD samples the secondary particle content (mostly photons, electrons, positrons and muons) of extensive air showers initiated by cosmic rays with energies ranging from $10^{17}~$eV up to more than… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.11983v2-abstract-full').style.display = 'inline'; document.getElementById('2103.11983v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.11983v2-abstract-full" style="display: none;"> The Pierre Auger Observatory, at present the largest cosmic-ray observatory ever built, is instrumented with a ground array of 1600 water-Cherenkov detectors, known as the Surface Detector (SD). The SD samples the secondary particle content (mostly photons, electrons, positrons and muons) of extensive air showers initiated by cosmic rays with energies ranging from $10^{17}~$eV up to more than $10^{20}~$eV. Measuring the independent contribution of the muon component to the total registered signal is crucial to enhance the capability of the Observatory to estimate the mass of the cosmic rays on an event-by-event basis. However, with the current design of the SD, it is difficult to straightforwardly separate the contributions of muons to the SD time traces from those of photons, electrons and positrons. In this paper, we present a method aimed at extracting the muon component of the time traces registered with each individual detector of the SD using Recurrent Neural Networks. We derive the performances of the method by training the neural network on simulations, in which the muon and the electromagnetic components of the traces are known. We conclude this work showing the performance of this method on experimental data of the Pierre Auger Observatory. We find that our predictions agree with the parameterizations obtained by the AGASA collaboration to describe the lateral distributions of the electromagnetic and muonic components of extensive air showers. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.11983v2-abstract-full').style.display = 'none'; document.getElementById('2103.11983v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published version, 23 pages, 15 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-21-096-AD-AE-SCD-TD </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 16 P07016 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2102.07797">arXiv:2102.07797</a> <span> [<a href="https://arxiv.org/pdf/2102.07797">pdf</a>, <a href="https://arxiv.org/format/2102.07797">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.126.152002">10.1103/PhysRevLett.126.152002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the fluctuations in the number of muons in extensive air showers with the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Albury%2C+J+M">J. M. Albury</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">R. Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">G. A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andrada%2C+B">B. Andrada</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Ferreira%2C+P+R+A">P. R. Ara煤jo Ferreira</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+G">G. Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Badescu%2C+A+M">A. M. Badescu</a>, <a href="/search/hep-ex?searchtype=author&query=Bakalova%2C+A">A. Bakalova</a>, <a href="/search/hep-ex?searchtype=author&query=Balaceanu%2C+A">A. Balaceanu</a>, <a href="/search/hep-ex?searchtype=author&query=Barbato%2C+F">F. Barbato</a>, <a href="/search/hep-ex?searchtype=author&query=Luz%2C+R+J+B">R. J. Barreira Luz</a>, <a href="/search/hep-ex?searchtype=author&query=Becker%2C+K+H">K. H. Becker</a>, <a href="/search/hep-ex?searchtype=author&query=Bellido%2C+J+A">J. A. Bellido</a> , et al. (343 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2102.07797v2-abstract-short" style="display: inline;"> We present the first measurement of the fluctuations in the number of muons in extensive air showers produced by ultrahigh energy cosmic rays. We find that the measured fluctuations are in good agreement with predictions from air shower simulations. This observation provides new insights into the origin of the previously reported deficit of muons in air shower simulations and constrains models of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.07797v2-abstract-full').style.display = 'inline'; document.getElementById('2102.07797v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2102.07797v2-abstract-full" style="display: none;"> We present the first measurement of the fluctuations in the number of muons in extensive air showers produced by ultrahigh energy cosmic rays. We find that the measured fluctuations are in good agreement with predictions from air shower simulations. This observation provides new insights into the origin of the previously reported deficit of muons in air shower simulations and constrains models of hadronic interactions at ultrahigh energies. Our measurement is compatible with the muon deficit originating from small deviations in the predictions from hadronic interaction models of particle production that accumulate as the showers develop. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.07797v2-abstract-full').style.display = 'none'; document.getElementById('2102.07797v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published version, 11 pages, 3 figures, 1 table, Supplemental material appended</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-21-202-AD-AE-SCD-TD </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 126, 152002 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2101.09559">arXiv:2101.09559</a> <span> [<a href="https://arxiv.org/pdf/2101.09559">pdf</a>, <a href="https://arxiv.org/format/2101.09559">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.103.075022">10.1103/PhysRevD.103.075022 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Oscillations of sterile neutrinos from dark matter decay eliminates the IceCube-Fermi tension </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Barger%2C+V">Vernon Barger</a>, <a href="/search/hep-ex?searchtype=author&query=Marfatia%2C+D">Danny Marfatia</a>, <a href="/search/hep-ex?searchtype=author&query=Reno%2C+M+H">Mary Hall Reno</a>, <a href="/search/hep-ex?searchtype=author&query=Weiler%2C+T+J">Thomas J. Weiler</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2101.09559v3-abstract-short" style="display: inline;"> IceCube has observed a flux of cosmic neutrinos, with a "bump" in the energy range $10 \lesssim E/{\rm TeV} \lesssim 100$ that creates a $3蟽$ tension with gamma-ray data from the Fermi satellite. This has been interpreted as evidence for a population of hidden cosmic-ray accelerators. We propose an alternative explanation of this conundrum on the basis of cold dark matter which decays into sterile… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.09559v3-abstract-full').style.display = 'inline'; document.getElementById('2101.09559v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2101.09559v3-abstract-full" style="display: none;"> IceCube has observed a flux of cosmic neutrinos, with a "bump" in the energy range $10 \lesssim E/{\rm TeV} \lesssim 100$ that creates a $3蟽$ tension with gamma-ray data from the Fermi satellite. This has been interpreted as evidence for a population of hidden cosmic-ray accelerators. We propose an alternative explanation of this conundrum on the basis of cold dark matter which decays into sterile neutrinos that after oscillations produce the bump in the cosmic neutrino spectrum. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.09559v3-abstract-full').style.display = 'none'; document.getElementById('2101.09559v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 3 figures. Note added. In version 3 of arXiv:2011.01632, bounds on the decaying dark matter component are significantly relaxed. Since our fiducial values are comfortably consistent with the corrected bounds, our conclusions remain unchanged</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 103, 075022 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2101.02946">arXiv:2101.02946</a> <span> [<a href="https://arxiv.org/pdf/2101.02946">pdf</a>, <a href="https://arxiv.org/format/2101.02946">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/16/07/P07019">10.1088/1748-0221/16/07/P07019 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Deep-Learning based Reconstruction of the Shower Maximum $X_{\mathrm{max}}$ using the Water-Cherenkov Detectors of the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Albury%2C+J+M">J. M. Albury</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">R. Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">G. A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andrada%2C+B">B. Andrada</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Ferreira%2C+P+R+A">P. R. Ara煤jo Ferreira</a>, <a href="/search/hep-ex?searchtype=author&query=Vel%C3%A1zquez%2C+J+C+A">J. C. Arteaga Vel谩zquez</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+G">G. Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Badescu%2C+A+M">A. M. Badescu</a>, <a href="/search/hep-ex?searchtype=author&query=Bakalova%2C+A">A. Bakalova</a>, <a href="/search/hep-ex?searchtype=author&query=Balaceanu%2C+A">A. Balaceanu</a>, <a href="/search/hep-ex?searchtype=author&query=Barbato%2C+F">F. Barbato</a>, <a href="/search/hep-ex?searchtype=author&query=Luz%2C+R+J+B">R. J. Barreira Luz</a>, <a href="/search/hep-ex?searchtype=author&query=Becker%2C+K+H">K. H. Becker</a> , et al. (348 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2101.02946v2-abstract-short" style="display: inline;"> The atmospheric depth of the air shower maximum $X_{\mathrm{max}}$ is an observable commonly used for the determination of the nuclear mass composition of ultra-high energy cosmic rays. Direct measurements of $X_{\mathrm{max}}$ are performed using observations of the longitudinal shower development with fluorescence telescopes. At the same time, several methods have been proposed for an indirect e… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.02946v2-abstract-full').style.display = 'inline'; document.getElementById('2101.02946v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2101.02946v2-abstract-full" style="display: none;"> The atmospheric depth of the air shower maximum $X_{\mathrm{max}}$ is an observable commonly used for the determination of the nuclear mass composition of ultra-high energy cosmic rays. Direct measurements of $X_{\mathrm{max}}$ are performed using observations of the longitudinal shower development with fluorescence telescopes. At the same time, several methods have been proposed for an indirect estimation of $X_{\mathrm{max}}$ from the characteristics of the shower particles registered with surface detector arrays. In this paper, we present a deep neural network (DNN) for the estimation of $X_{\mathrm{max}}$. The reconstruction relies on the signals induced by shower particles in the ground based water-Cherenkov detectors of the Pierre Auger Observatory. The network architecture features recurrent long short-term memory layers to process the temporal structure of signals and hexagonal convolutions to exploit the symmetry of the surface detector array. We evaluate the performance of the network using air showers simulated with three different hadronic interaction models. Thereafter, we account for long-term detector effects and calibrate the reconstructed $X_{\mathrm{max}}$ using fluorescence measurements. Finally, we show that the event-by-event resolution in the reconstruction of the shower maximum improves with increasing shower energy and reaches less than $25~\mathrm{g/cm^{2}}$ at energies above $2\times 10^{19}~\mathrm{eV}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.02946v2-abstract-full').style.display = 'none'; document.getElementById('2101.02946v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published version, 29 pages, 12 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-21-084-AD-AE-SCD-TD </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 16 P07019 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.07945">arXiv:2012.07945</a> <span> [<a href="https://arxiv.org/pdf/2012.07945">pdf</a>, <a href="https://arxiv.org/format/2012.07945">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1475-7516/2021/06/007">10.1088/1475-7516/2021/06/007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The POEMMA (Probe of Extreme Multi-Messenger Astrophysics) Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Olinto%2C+A+V">A. V. Olinto</a>, <a href="/search/hep-ex?searchtype=author&query=Krizmanic%2C+J">J. Krizmanic</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+H">J. H. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Aloisio%2C+R">R. Aloisio</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">L. A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Anzalone%2C+A">A. Anzalone</a>, <a href="/search/hep-ex?searchtype=author&query=Bagheri%2C+M">M. Bagheri</a>, <a href="/search/hep-ex?searchtype=author&query=Barghini%2C+D">D. Barghini</a>, <a href="/search/hep-ex?searchtype=author&query=Battisti%2C+M">M. Battisti</a>, <a href="/search/hep-ex?searchtype=author&query=Bergman%2C+D+R">D. R. Bergman</a>, <a href="/search/hep-ex?searchtype=author&query=Bertaina%2C+M+E">M. E. Bertaina</a>, <a href="/search/hep-ex?searchtype=author&query=Bertone%2C+P+F">P. F. Bertone</a>, <a href="/search/hep-ex?searchtype=author&query=Bisconti%2C+F">F. Bisconti</a>, <a href="/search/hep-ex?searchtype=author&query=Bustamante%2C+M">M. Bustamante</a>, <a href="/search/hep-ex?searchtype=author&query=Cafagna%2C+F">F. Cafagna</a>, <a href="/search/hep-ex?searchtype=author&query=Caruso%2C+R">R. Caruso</a>, <a href="/search/hep-ex?searchtype=author&query=Casolino%2C+M">M. Casolino</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%8Cern%C3%BD%2C+K">K. 膶ern媒</a>, <a href="/search/hep-ex?searchtype=author&query=Christl%2C+M+J">M. J. Christl</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+A+L">A. L. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=De+Mitri%2C+I">I. De Mitri</a>, <a href="/search/hep-ex?searchtype=author&query=Diesing%2C+R">R. Diesing</a>, <a href="/search/hep-ex?searchtype=author&query=Engel%2C+R">R. Engel</a>, <a href="/search/hep-ex?searchtype=author&query=Eser%2C+J">J. Eser</a>, <a href="/search/hep-ex?searchtype=author&query=Fang%2C+K">K. Fang</a> , et al. (51 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2012.07945v3-abstract-short" style="display: inline;"> The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is designed to accurately observe ultra-high-energy cosmic rays (UHECRs) and cosmic neutrinos from space with sensitivity over the full celestial sky. POEMMA will observe the extensive air showers (EASs) from UHECRs and UHE neutrinos above 20 EeV via air fluorescence. Additionally, POEMMA will observe the Cherenkov signal from upward-movin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.07945v3-abstract-full').style.display = 'inline'; document.getElementById('2012.07945v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.07945v3-abstract-full" style="display: none;"> The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is designed to accurately observe ultra-high-energy cosmic rays (UHECRs) and cosmic neutrinos from space with sensitivity over the full celestial sky. POEMMA will observe the extensive air showers (EASs) from UHECRs and UHE neutrinos above 20 EeV via air fluorescence. Additionally, POEMMA will observe the Cherenkov signal from upward-moving EASs induced by Earth-interacting tau neutrinos above 20 PeV. The POEMMA spacecraft are designed to quickly re-orientate to follow up transient neutrino sources and obtain unparalleled neutrino flux sensitivity. Developed as a NASA Astrophysics Probe-class mission, POEMMA consists of two identical satellites flying in loose formation in 525 km altitude orbits. Each POEMMA instrument incorporates a wide field-of-view (45$^\circ$) Schmidt telescope with over 6 m$^2$ of collecting area. The hybrid focal surface of each telescope includes a fast (1~$渭$s) near-ultraviolet camera for EAS fluorescence observations and an ultrafast (10~ns) optical camera for Cherenkov EAS observations. In a 5-year mission, POEMMA will provide measurements that open new multi-messenger windows onto the most energetic events in the universe, enabling the study of new astrophysics and particle physics at these otherwise inaccessible energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.07945v3-abstract-full').style.display = 'none'; document.getElementById('2012.07945v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">66 pages, 53 figures; JCAP accepted version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JCAP 06 (2021) 007 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.09035">arXiv:2007.09035</a> <span> [<a href="https://arxiv.org/pdf/2007.09035">pdf</a>, <a href="https://arxiv.org/format/2007.09035">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/15/10/P10021">10.1088/1748-0221/15/10/P10021 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Reconstruction of Events Recorded with the Surface Detector of the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Albury%2C+J+M">J. M. Albury</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">R. Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">G. A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andrada%2C+B">B. Andrada</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Ferreira%2C+P+R+A">P. R. Ara煤jo Ferreira</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+G">G. Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Badescu%2C+A+M">A. M. Badescu</a>, <a href="/search/hep-ex?searchtype=author&query=Bakalova%2C+A">A. Bakalova</a>, <a href="/search/hep-ex?searchtype=author&query=Balaceanu%2C+A">A. Balaceanu</a>, <a href="/search/hep-ex?searchtype=author&query=Barbato%2C+F">F. Barbato</a>, <a href="/search/hep-ex?searchtype=author&query=Luz%2C+R+J+B">R. J. Barreira Luz</a>, <a href="/search/hep-ex?searchtype=author&query=Becker%2C+K+H">K. H. Becker</a> , et al. (356 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2007.09035v4-abstract-short" style="display: inline;"> Cosmic rays arriving at Earth collide with the upper parts of the atmosphere, thereby inducing extensive air showers. When secondary particles from the cascade arrive at the ground, they are measured by surface detector arrays. We describe the methods applied to the measurements of the surface detector of the Pierre Auger Observatory to reconstruct events with zenith angles less than $60^\circ$ us… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.09035v4-abstract-full').style.display = 'inline'; document.getElementById('2007.09035v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.09035v4-abstract-full" style="display: none;"> Cosmic rays arriving at Earth collide with the upper parts of the atmosphere, thereby inducing extensive air showers. When secondary particles from the cascade arrive at the ground, they are measured by surface detector arrays. We describe the methods applied to the measurements of the surface detector of the Pierre Auger Observatory to reconstruct events with zenith angles less than $60^\circ$ using the timing and signal information recorded using the water-Cherenkov detector stations. In addition, we assess the accuracy of these methods in reconstructing the arrival directions of the primary cosmic ray particles and the sizes of the induced showers. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.09035v4-abstract-full').style.display = 'none'; document.getElementById('2007.09035v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published version, 36 pages, 14 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-20-487-AD-E-TD </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 15 (2020) P10021 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1909.09466">arXiv:1909.09466</a> <span> [<a href="https://arxiv.org/pdf/1909.09466">pdf</a>, <a href="https://arxiv.org/format/1909.09466">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The POEMMA (Probe of Extreme Multi-Messenger Astrophysics) mission </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Olinto%2C+A+V">A. V. Olinto</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+H">J. H. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Aloisio%2C+R">R. Aloisio</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">L. A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Bergman%2C+D+R">D. R. Bergman</a>, <a href="/search/hep-ex?searchtype=author&query=Bertaina%2C+M+E">M. E. Bertaina</a>, <a href="/search/hep-ex?searchtype=author&query=Bertone%2C+P">P. Bertone</a>, <a href="/search/hep-ex?searchtype=author&query=Bisconti%2C+F">F. Bisconti</a>, <a href="/search/hep-ex?searchtype=author&query=Bustamante%2C+M">M. Bustamante</a>, <a href="/search/hep-ex?searchtype=author&query=Casolino%2C+M">M. Casolino</a>, <a href="/search/hep-ex?searchtype=author&query=Christl%2C+M+J">M. J. Christl</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+A+L">A. L. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=De+Mitri%2C+I">I. De Mitri</a>, <a href="/search/hep-ex?searchtype=author&query=Diesing%2C+R">R. Diesing</a>, <a href="/search/hep-ex?searchtype=author&query=Eser%2C+J+B">J. B. Eser</a>, <a href="/search/hep-ex?searchtype=author&query=Fenu%2C+F">F. Fenu</a>, <a href="/search/hep-ex?searchtype=author&query=Gu%C3%A9pin%2C+C">C. Gu茅pin</a>, <a href="/search/hep-ex?searchtype=author&query=Hays%2C+E+A">E. A. Hays</a>, <a href="/search/hep-ex?searchtype=author&query=Judd%2C+E">E. Judd</a>, <a href="/search/hep-ex?searchtype=author&query=Krizmanic%2C+J+F">J. F. Krizmanic</a>, <a href="/search/hep-ex?searchtype=author&query=Kuznetsov%2C+E">E. Kuznetsov</a>, <a href="/search/hep-ex?searchtype=author&query=Liberatore%2C+A">A. Liberatore</a>, <a href="/search/hep-ex?searchtype=author&query=Mackovjak%2C+S">S. Mackovjak</a>, <a href="/search/hep-ex?searchtype=author&query=McEnery%2C+J">J. McEnery</a>, <a href="/search/hep-ex?searchtype=author&query=Mitchell%2C+J+W">J. W. Mitchell</a> , et al. (20 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1909.09466v1-abstract-short" style="display: inline;"> The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is designed to observe cosmic neutrinos (CNs) above 20 PeV and ultra-high energy cosmic rays (UHECRs) above 20 EeV over the full sky. The POEMMA mission calls for two identical satellites flying in loose formation, each comprised of a 4-meter wide field-of-view (45 degrees) Schmidt photometer. The hybrid focal surface includes a fast (1… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.09466v1-abstract-full').style.display = 'inline'; document.getElementById('1909.09466v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1909.09466v1-abstract-full" style="display: none;"> The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is designed to observe cosmic neutrinos (CNs) above 20 PeV and ultra-high energy cosmic rays (UHECRs) above 20 EeV over the full sky. The POEMMA mission calls for two identical satellites flying in loose formation, each comprised of a 4-meter wide field-of-view (45 degrees) Schmidt photometer. The hybrid focal surface includes a fast (1 $渭$s) ultraviolet camera for fluorescence observations and an ultrafast (10 ns) optical camera for Cherenkov observations. POEMMA will provide new multi-messenger windows onto the most energetic events in the universe, enabling the study of new astrophysics and particle physics at these otherwise inaccessible energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.09466v1-abstract-full').style.display = 'none'; document.getElementById('1909.09466v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 6 figures, presented in 36th International Cosmic Ray Conference (Madison). arXiv admin note: substantial text overlap with arXiv:1907.06217</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Proceedings of the 36th International Cosmic Ray Conference (Madison; 2019) Pos(ICRC2019) 378 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1907.06217">arXiv:1907.06217</a> <span> [<a href="https://arxiv.org/pdf/1907.06217">pdf</a>, <a href="https://arxiv.org/format/1907.06217">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> POEMMA (Probe of Extreme Multi-Messenger Astrophysics) design </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Olinto%2C+A+V">A. V. Olinto</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+H">J. H. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Aloisio%2C+R">R. Aloisio</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">L. A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Bergman%2C+D+R">D. R. Bergman</a>, <a href="/search/hep-ex?searchtype=author&query=Bertaina%2C+M+E">M. E. Bertaina</a>, <a href="/search/hep-ex?searchtype=author&query=Bertone%2C+P">P. Bertone</a>, <a href="/search/hep-ex?searchtype=author&query=Bisconti%2C+F">F. Bisconti</a>, <a href="/search/hep-ex?searchtype=author&query=Bustamante%2C+M">M. Bustamante</a>, <a href="/search/hep-ex?searchtype=author&query=Casolino%2C+M">M. Casolino</a>, <a href="/search/hep-ex?searchtype=author&query=Christl%2C+M+J">M. J. Christl</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+A+L">A. L. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=De+Mitri%2C+I">I. De Mitri</a>, <a href="/search/hep-ex?searchtype=author&query=Diesing%2C+R">R. Diesing</a>, <a href="/search/hep-ex?searchtype=author&query=Eser%2C+J">J. Eser</a>, <a href="/search/hep-ex?searchtype=author&query=Fenu%2C+F">F. Fenu</a>, <a href="/search/hep-ex?searchtype=author&query=Guepin%2C+C">C. Guepin</a>, <a href="/search/hep-ex?searchtype=author&query=Hays%2C+E+A">E. A. Hays</a>, <a href="/search/hep-ex?searchtype=author&query=Judd%2C+E+G">E. G. Judd</a>, <a href="/search/hep-ex?searchtype=author&query=Krizmanic%2C+J+F">J. F. Krizmanic</a>, <a href="/search/hep-ex?searchtype=author&query=Kuznetsov%2C+E">E. Kuznetsov</a>, <a href="/search/hep-ex?searchtype=author&query=Liberatore%2C+A">A. Liberatore</a>, <a href="/search/hep-ex?searchtype=author&query=Mackovjak%2C+S">S. Mackovjak</a>, <a href="/search/hep-ex?searchtype=author&query=McEnery%2C+J">J. McEnery</a>, <a href="/search/hep-ex?searchtype=author&query=Mitchell%2C+J+W">J. W. Mitchell</a> , et al. (20 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1907.06217v1-abstract-short" style="display: inline;"> The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is a NASA Astrophysics probe-class mission designed to observe ultra-high energy cosmic rays (UHECRs) and cosmic neutrinos from space. Astro2020 APC white paper: Medium-class Space Particle Astrophysics Project. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1907.06217v1-abstract-full" style="display: none;"> The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is a NASA Astrophysics probe-class mission designed to observe ultra-high energy cosmic rays (UHECRs) and cosmic neutrinos from space. Astro2020 APC white paper: Medium-class Space Particle Astrophysics Project. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1907.06217v1-abstract-full').style.display = 'none'; document.getElementById('1907.06217v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 July, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Astro2020 APC white paper: Medium-class Space Particle Astrophysics Project</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.05386">arXiv:1806.05386</a> <span> [<a href="https://arxiv.org/pdf/1806.05386">pdf</a>, <a href="https://arxiv.org/format/1806.05386">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1475-7516/2018/10/026">10.1088/1475-7516/2018/10/026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Albury%2C+J+M">J. M. Albury</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">G. A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andrada%2C+B">B. Andrada</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+N">N. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+G">G. Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Badescu%2C+A+M">A. M. Badescu</a>, <a href="/search/hep-ex?searchtype=author&query=Balaceanu%2C+A">A. Balaceanu</a>, <a href="/search/hep-ex?searchtype=author&query=Barbato%2C+F">F. Barbato</a>, <a href="/search/hep-ex?searchtype=author&query=Luz%2C+R+J+B">R. J. Barreira Luz</a>, <a href="/search/hep-ex?searchtype=author&query=Baur%2C+S">S. Baur</a>, <a href="/search/hep-ex?searchtype=author&query=Becker%2C+K+H">K. H. Becker</a> , et al. (370 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1806.05386v2-abstract-short" style="display: inline;"> With the Auger Engineering Radio Array (AERA) of the Pierre Auger Observatory, we have observed the radio emission from 561 extensive air showers with zenith angles between 60$^\circ$ and 84$^\circ$. In contrast to air showers with more vertical incidence, these inclined air showers illuminate large ground areas of several km$^2$ with radio signals detectable in the 30 to 80\,MHz band. A compariso… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.05386v2-abstract-full').style.display = 'inline'; document.getElementById('1806.05386v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.05386v2-abstract-full" style="display: none;"> With the Auger Engineering Radio Array (AERA) of the Pierre Auger Observatory, we have observed the radio emission from 561 extensive air showers with zenith angles between 60$^\circ$ and 84$^\circ$. In contrast to air showers with more vertical incidence, these inclined air showers illuminate large ground areas of several km$^2$ with radio signals detectable in the 30 to 80\,MHz band. A comparison of the measured radio-signal amplitudes with Monte Carlo simulations of a subset of 50 events for which we reconstruct the energy using the Auger surface detector shows agreement within the uncertainties of the current analysis. As expected for forward-beamed radio emission undergoing no significant absorption or scattering in the atmosphere, the area illuminated by radio signals grows with the zenith angle of the air shower. Inclined air showers with EeV energies are thus measurable with sparse radio-antenna arrays with grid sizes of a km or more. This is particularly attractive as radio detection provides direct access to the energy in the electromagnetic cascade of an air shower, which in case of inclined air showers is not accessible by arrays of particle detectors on the ground. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.05386v2-abstract-full').style.display = 'none'; document.getElementById('1806.05386v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 October, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published version, 14 pages, 12 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-18-259 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JCAP10(2018)026 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1612.01517">arXiv:1612.01517</a> <span> [<a href="https://arxiv.org/pdf/1612.01517">pdf</a>, <a href="https://arxiv.org/format/1612.01517">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1475-7516/2017/04/009;">10.1088/1475-7516/2017/04/009; <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1475-7516/2020/09/E02">10.1088/1475-7516/2020/09/E02 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for photons with energies above 10$^{18}$ eV using the hybrid detector of the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Samarai%2C+I+A">I. Al Samarai</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">G. A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andrada%2C+B">B. Andrada</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+N">N. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+G">G. Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Badescu%2C+A+M">A. M. Badescu</a>, <a href="/search/hep-ex?searchtype=author&query=Balaceanu%2C+A">A. Balaceanu</a>, <a href="/search/hep-ex?searchtype=author&query=Luz%2C+R+J+B">R. J. Barreira Luz</a>, <a href="/search/hep-ex?searchtype=author&query=Beatty%2C+J+J">J. J. Beatty</a> , et al. (375 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1612.01517v3-abstract-short" style="display: inline;"> A search for ultra-high energy photons with energies above 1 EeV is performed using nine years of data collected by the Pierre Auger Observatory in hybrid operation mode. An unprecedented separation power between photon and hadron primaries is achieved by combining measurements of the longitudinal air-shower development with the particle content at ground measured by the fluorescence and surface d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.01517v3-abstract-full').style.display = 'inline'; document.getElementById('1612.01517v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1612.01517v3-abstract-full" style="display: none;"> A search for ultra-high energy photons with energies above 1 EeV is performed using nine years of data collected by the Pierre Auger Observatory in hybrid operation mode. An unprecedented separation power between photon and hadron primaries is achieved by combining measurements of the longitudinal air-shower development with the particle content at ground measured by the fluorescence and surface detectors, respectively. Only three photon candidates at energies 1 - 2 EeV are found, which is compatible with the expected hadron-induced background. Upper limits on the integral flux of ultra-high energy photons of 0.038, 0.010, 0.009, 0.008 and 0.007 km$^{-2}$ sr$^{-1}$ yr$^{-1}$ are derived at 95% C.L. for energy thresholds of 1, 2, 3, 5 and 10 EeV. These limits bound the fractions of photons in the all-particle integral flux below 0.14%, 0.17%, 0.42%, 0.86% and 2.9%. For the first time the photon fraction at EeV energies is constrained at the sub-percent level. The improved limits are below the flux of diffuse photons predicted by some astrophysical scenarios for cosmogenic photon production. The new results rule-out the early top-down models $-$ in which ultra-high energy cosmic rays are produced by, e.g., the decay of super-massive particles $-$ and challenge the most recent super-heavy dark matter models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.01517v3-abstract-full').style.display = 'none'; document.getElementById('1612.01517v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 December, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Corrected version after erratum published in JCAP</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-16-657 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JCAP04(2017)009; JCAP09(2020)E02 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1610.08509">arXiv:1610.08509</a> <span> [<a href="https://arxiv.org/pdf/1610.08509">pdf</a>, <a href="https://arxiv.org/format/1610.08509">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.117.192001">10.1103/PhysRevLett.117.192001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Samarai%2C+I+A">I. Al Samarai</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allen%2C+J">J. Allen</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">G. A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andrada%2C+B">B. Andrada</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+N">N. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+G">G. Avila</a> , et al. (413 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1610.08509v2-abstract-short" style="display: inline;"> Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic interaction models without relying on the absolute energy calibration, and apply it to events with primary energy 6-16 EeV (E_CM = 110-170 TeV), whose longitudinal development and lateral distribution were simultaneously measured by the Pierre… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1610.08509v2-abstract-full').style.display = 'inline'; document.getElementById('1610.08509v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1610.08509v2-abstract-full" style="display: none;"> Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic interaction models without relying on the absolute energy calibration, and apply it to events with primary energy 6-16 EeV (E_CM = 110-170 TeV), whose longitudinal development and lateral distribution were simultaneously measured by the Pierre Auger Observatory. The average hadronic shower is 1.33 +- 0.16 (1.61 +- 0.21) times larger than predicted using the leading LHC-tuned models EPOS-LHC (QGSJetII-04), with a corresponding excess of muons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1610.08509v2-abstract-full').style.display = 'none'; document.getElementById('1610.08509v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 October, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 October, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published version. Added journal reference and DOI. Added Report Number</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-16-504-AD-AE-CD-TD </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 117, 192001 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1605.02564">arXiv:1605.02564</a> <span> [<a href="https://arxiv.org/pdf/1605.02564">pdf</a>, <a href="https://arxiv.org/format/1605.02564">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.116.241101">10.1103/PhysRevLett.116.241101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">Alexander Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">Pedro Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">Marco Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E">Eun-Joo Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Samarai%2C+I+A">Imen Al Samarai</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I">Ivone Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">Ingomar Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">Patrick Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">Alejandro Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">Jesus Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">Jaime Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">Rafael Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">Michelangelo Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">Amin Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">Gioacchino Alex Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">Luis Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">Sofia Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">Carla Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">Fernando Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+N">Nicusor Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H+G">Hern谩n Gonzalo Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">Pedro Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">Julien Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+G">Gualberto Avila</a> , et al. (425 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1605.02564v2-abstract-short" style="display: inline;"> We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cos… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1605.02564v2-abstract-full').style.display = 'inline'; document.getElementById('1605.02564v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1605.02564v2-abstract-full" style="display: none;"> We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principle calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1605.02564v2-abstract-full').style.display = 'none'; document.getElementById('1605.02564v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 May, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Replaced with published version. Added journal reference and DOI. Supplemental material in the ancillary files</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-16-169-AD-AE-CD-TD </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 116, 241101 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1605.01625">arXiv:1605.01625</a> <span> [<a href="https://arxiv.org/pdf/1605.01625">pdf</a>, <a href="https://arxiv.org/format/1605.01625">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/11/02/P02012">10.1088/1748-0221/11/02/P02012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Prototype muon detectors for the AMIGA component of the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Samarai%2C+I+A">I. Al Samarai</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">R. Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">A. Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">G. A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andrada%2C+B">B. Andrada</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+N">N. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a> , et al. (429 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1605.01625v2-abstract-short" style="display: inline;"> Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory to extend its range of detection and to directly measure the muon content of the particle showers. It consists of an infill of surface water-Cherenkov detectors accompanied by buried scintillator detectors used for muon counting. The main objectives of the AMIGA engineering array, referred to as the Unitary… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1605.01625v2-abstract-full').style.display = 'inline'; document.getElementById('1605.01625v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1605.01625v2-abstract-full" style="display: none;"> Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory to extend its range of detection and to directly measure the muon content of the particle showers. It consists of an infill of surface water-Cherenkov detectors accompanied by buried scintillator detectors used for muon counting. The main objectives of the AMIGA engineering array, referred to as the Unitary Cell, are to identify and resolve all engineering issues as well as to understand the muon-number counting uncertainties related to the design of the detector. The mechanical design, fabrication and deployment processes of the muon counters of the Unitary Cell are described in this document. These muon counters modules comprise sealed PVC casings containing plastic scintillation bars, wavelength-shifter optical fibers, 64 pixel photomultiplier tubes, and acquisition electronics. The modules are buried approximately 2.25 m below ground level in order to minimize contamination from electromagnetic shower particles. The mechanical setup, which allows access to the electronics for maintenance, is also described in addition to tests of the modules' response and integrity. The completed Unitary Cell has measured a number of air showers of which a first analysis of a sample event is included here. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1605.01625v2-abstract-full').style.display = 'none'; document.getElementById('1605.01625v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 May, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 May, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Replaced with published version. Added journal reference and DOI</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-16-164-AD-AE-CD-TD </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 11 (2016) P02012 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.02216">arXiv:1512.02216</a> <span> [<a href="https://arxiv.org/pdf/1512.02216">pdf</a>, <a href="https://arxiv.org/format/1512.02216">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/11/01/P01018">10.1088/1748-0221/11/01/P01018 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nanosecond-level time synchronization of autonomous radio detector stations for extensive air showers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Samarai%2C+I+A">I. Al Samarai</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">R. Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">A. Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+G+A">G. A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+N">N. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+G">G. Avila</a> , et al. (426 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1512.02216v2-abstract-short" style="display: inline;"> To exploit the full potential of radio measurements of cosmic-ray air showers at MHz frequencies, a detector timing synchronization within 1 ns is needed. Large distributed radio detector arrays such as the Auger Engineering Radio Array (AERA) rely on timing via the Global Positioning System (GPS) for the synchronization of individual detector station clocks. Unfortunately, GPS timing is expected… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.02216v2-abstract-full').style.display = 'inline'; document.getElementById('1512.02216v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.02216v2-abstract-full" style="display: none;"> To exploit the full potential of radio measurements of cosmic-ray air showers at MHz frequencies, a detector timing synchronization within 1 ns is needed. Large distributed radio detector arrays such as the Auger Engineering Radio Array (AERA) rely on timing via the Global Positioning System (GPS) for the synchronization of individual detector station clocks. Unfortunately, GPS timing is expected to have an accuracy no better than about 5 ns. In practice, in particular in AERA, the GPS clocks exhibit drifts on the order of tens of ns. We developed a technique to correct for the GPS drifts, and an independent method is used for cross-checks that indeed we reach nanosecond-scale timing accuracy by this correction. First, we operate a "beacon transmitter" which emits defined sine waves detected by AERA antennas recorded within the physics data. The relative phasing of these sine waves can be used to correct for GPS clock drifts. In addition to this, we observe radio pulses emitted by commercial airplanes, the position of which we determine in real time from Automatic Dependent Surveillance Broadcasts intercepted with a software-defined radio. From the known source location and the measured arrival times of the pulses we determine relative timing offsets between radio detector stations. We demonstrate with a combined analysis that the two methods give a consistent timing calibration with an accuracy of 2 ns or better. Consequently, the beacon method alone can be used in the future to continuously determine and correct for GPS clock drifts in each individual event measured by AERA. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.02216v2-abstract-full').style.display = 'none'; document.getElementById('1512.02216v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 February, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">26 pages. Replaced with published version. Added journal reference and DOI</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-15-560-AD-CD-TD </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 11 (2016) P01018 11 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1511.02109">arXiv:1511.02109</a> <span> [<a href="https://arxiv.org/pdf/1511.02109">pdf</a>, <a href="https://arxiv.org/format/1511.02109">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The IceCube Neutrino Observatory, the Pierre Auger Observatory and the Telescope Array: Joint Contribution to the 34th International Cosmic Ray Conference (ICRC 2015) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=IceCube+Collaboration"> IceCube Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aartsen%2C+M+G">M. G. Aartsen</a>, <a href="/search/hep-ex?searchtype=author&query=Abraham%2C+K">K. Abraham</a>, <a href="/search/hep-ex?searchtype=author&query=Ackermann%2C+M">M. Ackermann</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J">J. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Aguilar%2C+J+A">J. A. Aguilar</a>, <a href="/search/hep-ex?searchtype=author&query=Ahlers%2C+M">M. Ahlers</a>, <a href="/search/hep-ex?searchtype=author&query=Ahrens%2C+M">M. Ahrens</a>, <a href="/search/hep-ex?searchtype=author&query=Altmann%2C+D">D. Altmann</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+T">T. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Ansseau%2C+I">I. Ansseau</a>, <a href="/search/hep-ex?searchtype=author&query=Archinger%2C+M">M. Archinger</a>, <a href="/search/hep-ex?searchtype=author&query=Arguelles%2C+C">C. Arguelles</a>, <a href="/search/hep-ex?searchtype=author&query=Arlen%2C+T+C">T. C. Arlen</a>, <a href="/search/hep-ex?searchtype=author&query=Auffenberg%2C+J">J. Auffenberg</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Barwick%2C+S+W">S. W. Barwick</a>, <a href="/search/hep-ex?searchtype=author&query=Baum%2C+V">V. Baum</a>, <a href="/search/hep-ex?searchtype=author&query=Bay%2C+R">R. Bay</a>, <a href="/search/hep-ex?searchtype=author&query=Beatty%2C+J+J">J. J. Beatty</a>, <a href="/search/hep-ex?searchtype=author&query=Tjus%2C+J+B">J. Becker Tjus</a>, <a href="/search/hep-ex?searchtype=author&query=Becker%2C+K+-">K. -H. Becker</a>, <a href="/search/hep-ex?searchtype=author&query=Beiser%2C+E">E. Beiser</a>, <a href="/search/hep-ex?searchtype=author&query=BenZvi%2C+S">S. BenZvi</a>, <a href="/search/hep-ex?searchtype=author&query=Berghaus%2C+P">P. Berghaus</a> , et al. (869 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1511.02109v1-abstract-short" style="display: inline;"> We have conducted three searches for correlations between ultra-high energy cosmic rays detected by the Telescope Array and the Pierre Auger Observatory, and high-energy neutrino candidate events from IceCube. Two cross-correlation analyses with UHECRs are done: one with 39 cascades from the IceCube `high-energy starting events' sample and the other with 16 high-energy `track events'. The angular… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1511.02109v1-abstract-full').style.display = 'inline'; document.getElementById('1511.02109v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1511.02109v1-abstract-full" style="display: none;"> We have conducted three searches for correlations between ultra-high energy cosmic rays detected by the Telescope Array and the Pierre Auger Observatory, and high-energy neutrino candidate events from IceCube. Two cross-correlation analyses with UHECRs are done: one with 39 cascades from the IceCube `high-energy starting events' sample and the other with 16 high-energy `track events'. The angular separation between the arrival directions of neutrinos and UHECRs is scanned over. The same events are also used in a separate search using a maximum likelihood approach, after the neutrino arrival directions are stacked. To estimate the significance we assume UHECR magnetic deflections to be inversely proportional to their energy, with values $3^\circ$, $6^\circ$ and $9^\circ$ at 100 EeV to allow for the uncertainties on the magnetic field strength and UHECR charge. A similar analysis is performed on stacked UHECR arrival directions and the IceCube sample of through-going muon track events which were optimized for neutrino point-source searches. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1511.02109v1-abstract-full').style.display = 'none'; document.getElementById('1511.02109v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">one proceeding, the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The Netherlands; will appear in PoS(ICRC2015)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1503.07786">arXiv:1503.07786</a> <span> [<a href="https://arxiv.org/pdf/1503.07786">pdf</a>, <a href="https://arxiv.org/format/1503.07786">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1475-7516/2015/08/049">10.1088/1475-7516/2015/08/049 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the cosmic ray spectrum above $4{\times}10^{18}$ eV using inclined events detected with the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">Alexander Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">Pedro Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">Marco Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E">Eun-Joo Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Samarai%2C+I+A">Imen Al Samarai</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I">Ivone Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">Ingomar Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">Patrick Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">Alejandro Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">Jesus Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">Jaime Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">Rafael Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">Michelangelo Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">Amin Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">Luis Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">Sofia Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">Carla Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Aranda%2C+V+M">Victor Manuel Aranda</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">Fernando Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+N">Nicusor Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H+G">Hern谩n Gonzalo Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">Pedro Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">Julien Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Ave%2C+M">Maximo Ave</a> , et al. (439 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1503.07786v2-abstract-short" style="display: inline;"> A measurement of the cosmic-ray spectrum for energies exceeding $4{\times}10^{18}$ eV is presented, which is based on the analysis of showers with zenith angles greater than $60^{\circ}$ detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above $5.3{\times}10^{18}$ eV, the "ankle", the fl… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.07786v2-abstract-full').style.display = 'inline'; document.getElementById('1503.07786v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1503.07786v2-abstract-full" style="display: none;"> A measurement of the cosmic-ray spectrum for energies exceeding $4{\times}10^{18}$ eV is presented, which is based on the analysis of showers with zenith angles greater than $60^{\circ}$ detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above $5.3{\times}10^{18}$ eV, the "ankle", the flux can be described by a power law $E^{-纬}$ with index $纬=2.70 \pm 0.02 \,\text{(stat)} \pm 0.1\,\text{(sys)}$ followed by a smooth suppression region. For the energy ($E_\text{s}$) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find $E_\text{s}=(5.12\pm0.25\,\text{(stat)}^{+1.0}_{-1.2}\,\text{(sys)}){\times}10^{19}$ eV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.07786v2-abstract-full').style.display = 'none'; document.getElementById('1503.07786v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 November, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Replaced with published version. Added journal reference and DOI</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-15-099-AD-AE-CD-TD </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JCAP 08 (2015) 049 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1407.3214">arXiv:1407.3214</a> <span> [<a href="https://arxiv.org/pdf/1407.3214">pdf</a>, <a href="https://arxiv.org/ps/1407.3214">ps</a>, <a href="https://arxiv.org/format/1407.3214">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1475-7516/2014/08/019">10.1088/1475-7516/2014/08/019 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Reconstruction of inclined air showers detected with the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahlers%2C+M">M. Ahlers</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Samarai%2C+I+A">I. Al Samarai</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allen%2C+J">J. Allen</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Batista%2C+R+A">R. Alves Batista</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">A. Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Ave%2C+M">M. Ave</a> , et al. (463 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1407.3214v1-abstract-short" style="display: inline;"> We describe the method devised to reconstruct inclined cosmic-ray air showers with zenith angles greater than $60^\circ$ detected with the surface array of the Pierre Auger Observatory. The measured signals at the ground level are fitted to muon density distributions predicted with atmospheric cascade models to obtain the relative shower size as an overall normalization parameter. The method is ev… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1407.3214v1-abstract-full').style.display = 'inline'; document.getElementById('1407.3214v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1407.3214v1-abstract-full" style="display: none;"> We describe the method devised to reconstruct inclined cosmic-ray air showers with zenith angles greater than $60^\circ$ detected with the surface array of the Pierre Auger Observatory. The measured signals at the ground level are fitted to muon density distributions predicted with atmospheric cascade models to obtain the relative shower size as an overall normalization parameter. The method is evaluated using simulated showers to test its performance. The energy of the cosmic rays is calibrated using a sub-sample of events reconstructed with both the fluorescence and surface array techniques. The reconstruction method described here provides the basis of complementary analyses including an independent measurement of the energy spectrum of ultra-high energy cosmic rays using very inclined events collected by the Pierre Auger Observatory. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1407.3214v1-abstract-full').style.display = 'none'; document.getElementById('1407.3214v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 July, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 19 figures, accepted for publication in Journal of Cosmology and Astroparticle Physics (JCAP)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1312.6587">arXiv:1312.6587</a> <span> [<a href="https://arxiv.org/pdf/1312.6587">pdf</a>, <a href="https://arxiv.org/format/1312.6587">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.jheap.2014.01.001">10.1016/j.jheap.2014.01.001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Cosmic Neutrino Pevatrons: A Brand New Pathway to Astronomy, Astrophysics, and Particle Physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Barger%2C+V">Vernon Barger</a>, <a href="/search/hep-ex?searchtype=author&query=Cholis%2C+I">Ilias Cholis</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Hooper%2C+D">Dan Hooper</a>, <a href="/search/hep-ex?searchtype=author&query=Kusenko%2C+A">Alexander Kusenko</a>, <a href="/search/hep-ex?searchtype=author&query=Learned%2C+J+G">John G. Learned</a>, <a href="/search/hep-ex?searchtype=author&query=Marfatia%2C+D">Danny Marfatia</a>, <a href="/search/hep-ex?searchtype=author&query=Pakvasa%2C+S">Sandip Pakvasa</a>, <a href="/search/hep-ex?searchtype=author&query=Paul%2C+T+C">Thomas C. Paul</a>, <a href="/search/hep-ex?searchtype=author&query=Weiler%2C+T+J">Thomas J. Weiler</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1312.6587v3-abstract-short" style="display: inline;"> The announcement by the IceCube Collaboration of the observation of 28 cosmic neutrino candidates has been greeted with a great deal of justified excitement. The data reported so far depart by 4.3蟽from the expected atmospheric neutrino background, which raises the obvious question: "Where in the Cosmos are these neutrinos coming from?" We review the many possibilities which have been explored in t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.6587v3-abstract-full').style.display = 'inline'; document.getElementById('1312.6587v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1312.6587v3-abstract-full" style="display: none;"> The announcement by the IceCube Collaboration of the observation of 28 cosmic neutrino candidates has been greeted with a great deal of justified excitement. The data reported so far depart by 4.3蟽from the expected atmospheric neutrino background, which raises the obvious question: "Where in the Cosmos are these neutrinos coming from?" We review the many possibilities which have been explored in the literature to address this question, including origins at either Galactic or extragalactic celestial objects. For completeness, we also briefly discuss new physics processes which may either explain or be constrained by IceCube data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.6587v3-abstract-full').style.display = 'none'; document.getElementById('1312.6587v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 January, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">This is a review article solicited for the inaugural edition of Journal of High Energy Astrophysics (JHEAp). Matching version accepted for publication</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-13-541-A </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEAp1:1,2014 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.5662">arXiv:1310.5662</a> <span> [<a href="https://arxiv.org/pdf/1310.5662">pdf</a>, <a href="https://arxiv.org/format/1310.5662">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Snowmass Cosmic Frontiers 6 (CF6) Working Group Summary --The Bright Side of the Cosmic Frontier: Cosmic Probes of Fundamental Physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Beatty%2C+J+J">J. J. Beatty</a>, <a href="/search/hep-ex?searchtype=author&query=Nelson%2C+A+E">A. E. Nelson</a>, <a href="/search/hep-ex?searchtype=author&query=Olinto%2C+A">A. Olinto</a>, <a href="/search/hep-ex?searchtype=author&query=Sinnis%2C+G">G. Sinnis</a>, <a href="/search/hep-ex?searchtype=author&query=Abeysekara%2C+A+U">A. U. Abeysekara</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">L. A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Aramaki%2C+T">T. Aramaki</a>, <a href="/search/hep-ex?searchtype=author&query=Belz%2C+J">J. Belz</a>, <a href="/search/hep-ex?searchtype=author&query=Buckley%2C+J+H">J. H. Buckley</a>, <a href="/search/hep-ex?searchtype=author&query=Byrum%2C+K">K. Byrum</a>, <a href="/search/hep-ex?searchtype=author&query=Cameron%2C+R">R. Cameron</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+M">M-C. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Clark%2C+K">K. Clark</a>, <a href="/search/hep-ex?searchtype=author&query=Connolly%2C+A">A. Connolly</a>, <a href="/search/hep-ex?searchtype=author&query=Cowen%2C+D">D. Cowen</a>, <a href="/search/hep-ex?searchtype=author&query=DeYoung%2C+T">T. DeYoung</a>, <a href="/search/hep-ex?searchtype=author&query=Dumm%2C+P+v+D+J">P. von Doetinchem J. Dumm</a>, <a href="/search/hep-ex?searchtype=author&query=Errando%2C+M">M. Errando</a>, <a href="/search/hep-ex?searchtype=author&query=Farrar%2C+G">G. Farrar</a>, <a href="/search/hep-ex?searchtype=author&query=Ferrer%2C+F">F. Ferrer</a>, <a href="/search/hep-ex?searchtype=author&query=Fortson%2C+L">L. Fortson</a>, <a href="/search/hep-ex?searchtype=author&query=Funk%2C+S">S. Funk</a>, <a href="/search/hep-ex?searchtype=author&query=Grant%2C+D">D. Grant</a>, <a href="/search/hep-ex?searchtype=author&query=Griffiths%2C+S">S. Griffiths</a>, <a href="/search/hep-ex?searchtype=author&query=Gro%C3%9F%2C+A">A. Gro脽</a> , et al. (40 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1310.5662v2-abstract-short" style="display: inline;"> Report of the CF6 Working Group at Snowmass 2013. Topics addressed include ultra-high energy cosmic rays, neutrinos, gamma rays, baryogenesis, and experiments probing the fundamental nature of spacetime. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.5662v2-abstract-full" style="display: none;"> Report of the CF6 Working Group at Snowmass 2013. Topics addressed include ultra-high energy cosmic rays, neutrinos, gamma rays, baryogenesis, and experiments probing the fundamental nature of spacetime. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.5662v2-abstract-full').style.display = 'none'; document.getElementById('1310.5662v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Snowmass 2013 CF6 Working Group Report; author list corrected</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1211.0186">arXiv:1211.0186</a> <span> [<a href="https://arxiv.org/pdf/1211.0186">pdf</a>, <a href="https://arxiv.org/ps/1211.0186">ps</a>, <a href="https://arxiv.org/format/1211.0186">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2012.12.019">10.1016/j.physletb.2012.12.019 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Right-Handed Neutrinos as the Dark Radiation: Status and Forecasts for the LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Steigman%2C+G">Gary Steigman</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1211.0186v1-abstract-short" style="display: inline;"> Precision data from cosmology (probing the CMB decoupling epoch) and light-element abundances (probing the BBN epoch) have hinted at the presence of extra relativistic degrees of freedom, the so-called "dark radiation." We present a model independent study to account for the dark radiation by means of the right-handed partners of the three, left-handed, standard model neutrinos. We show that milli… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.0186v1-abstract-full').style.display = 'inline'; document.getElementById('1211.0186v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1211.0186v1-abstract-full" style="display: none;"> Precision data from cosmology (probing the CMB decoupling epoch) and light-element abundances (probing the BBN epoch) have hinted at the presence of extra relativistic degrees of freedom, the so-called "dark radiation." We present a model independent study to account for the dark radiation by means of the right-handed partners of the three, left-handed, standard model neutrinos. We show that milli-weak interactions of these Dirac states (through their coupling to a TeV-scale Z' gauge boson) may allow the 谓_R's to decouple much earlier, at a higher temperature, than their left-handed counterparts. If the 谓_R's decouple during the quark-hadron crossover transition, they are considerably cooler than the 谓_L's and contribute less than 3 extra "equivalent neutrinos" to the early Universe energy density. For decoupling in this transition region, the 3 谓_R generate 螖N_谓= 3(T_{谓_R}/T_{谓_ L})^4 < 3, extra relativistic degrees of freedom at BBN and at the CMB epochs. Consistency with present constraints on dark radiation permits us to identify the allowed region in the parameter space of Z' masses and couplings. Remarkably, the allowed region is within the range of discovery of LHC14. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.0186v1-abstract-full').style.display = 'none'; document.getElementById('1211.0186v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages revtex, 3 eps figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1208.2821">arXiv:1208.2821</a> <span> [<a href="https://arxiv.org/pdf/1208.2821">pdf</a>, <a href="https://arxiv.org/format/1208.2821">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP02(2013)074">10.1007/JHEP02(2013)074 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Vacuum Stability of Standard Model^{++} </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Antoniadis%2C+I">Ignatios Antoniadis</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Huang%2C+X">Xing Huang</a>, <a href="/search/hep-ex?searchtype=author&query=Lust%2C+D">Dieter Lust</a>, <a href="/search/hep-ex?searchtype=author&query=Taylor%2C+T+R">Tomasz R. Taylor</a>, <a href="/search/hep-ex?searchtype=author&query=Vlcek%2C+B">Brian Vlcek</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1208.2821v2-abstract-short" style="display: inline;"> The latest results of the ATLAS and CMS experiments point to a preferred narrow Higgs mass range (m_h \simeq 124 - 126 GeV) in which the effective potential of the Standard Model (SM) develops a vacuum instability at a scale 10^{9} -10^{11} GeV, with the precise scale depending on the precise value of the top quark mass and the strong coupling constant. Motivated by this experimental situation, we… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1208.2821v2-abstract-full').style.display = 'inline'; document.getElementById('1208.2821v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1208.2821v2-abstract-full" style="display: none;"> The latest results of the ATLAS and CMS experiments point to a preferred narrow Higgs mass range (m_h \simeq 124 - 126 GeV) in which the effective potential of the Standard Model (SM) develops a vacuum instability at a scale 10^{9} -10^{11} GeV, with the precise scale depending on the precise value of the top quark mass and the strong coupling constant. Motivated by this experimental situation, we present here a detailed investigation about the stability of the SM^{++} vacuum, which is characterized by a simple extension of the SM obtained by adding to the scalar sector a complex SU(2) singlet that has the quantum numbers of the right-handed neutrino, H", and to the gauge sector an U(1) that is broken by the vacuum expectation value of H". We derive the complete set of renormalization group equations at one loop. We then pursue a numerical study of the system to determine the triviality and vacuum stability bounds, using a scan of 10^4 random set of points to fix the initial conditions. We show that, if there is no mixing in the scalar sector, the top Yukawa coupling drives the quartic Higgs coupling to negative values in the ultraviolet and, as for the SM, the effective potential develops an instability below the Planck scale. However, for a mixing angle -0.35 \alt 伪\alt -0.02 or 0.01 \alt 伪\alt 0.35, with the new scalar mass in the range 500 GeV \alt m_{h"} \alt 8 TeV, the SM^{++} ground state can be absolutely stable up to the Planck scale. These results are largely independent of TeV-scale free parameters in the model: the mass of the non-anomalous U(1) gauge boson and its branching fractions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1208.2821v2-abstract-full').style.display = 'none'; document.getElementById('1208.2821v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 August, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 revtex pages, 8 figures; to be published in JHEP</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MPP--2012--124; LMU-ASC 58/12; CERN-PH-TH/2012-222 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1111.6645">arXiv:1111.6645</a> <span> [<a href="https://arxiv.org/pdf/1111.6645">pdf</a>, <a href="https://arxiv.org/ps/1111.6645">ps</a>, <a href="https://arxiv.org/format/1111.6645">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.astropartphys.2011.08.001">10.1016/j.astropartphys.2011.08.001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray Showers detected by the Pierre Auger Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allard%2C+D">D. Allard</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allen%2C+J">J. Allen</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">A. Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%8Di%C4%87%2C+T">T. Anti膷i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Anzalone%2C+A">A. Anzalone</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arganda%2C+E">E. Arganda</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Ave%2C+M">M. Ave</a>, <a href="/search/hep-ex?searchtype=author&query=Avenier%2C+M">M. Avenier</a> , et al. (473 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1111.6645v1-abstract-short" style="display: inline;"> In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an extensive air shower (EAS) to trigger an individual detector of a ground based array as a function of distance to the shower axis, taking into account energy, mass and direction of the primary cosmic ray. We apply this concept to the surface array of the Pierre Auger Observatory consi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.6645v1-abstract-full').style.display = 'inline'; document.getElementById('1111.6645v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1111.6645v1-abstract-full" style="display: none;"> In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an extensive air shower (EAS) to trigger an individual detector of a ground based array as a function of distance to the shower axis, taking into account energy, mass and direction of the primary cosmic ray. We apply this concept to the surface array of the Pierre Auger Observatory consisting of a 1.5 km spaced grid of about 1600 water Cherenkov stations. Using Monte Carlo simulations of ultra-high energy showers the LTP functions are derived for energies in the range between 10^{17} and 10^{19} eV and zenith angles up to 65 degs. A parametrization combining a step function with an exponential is found to reproduce them very well in the considered range of energies and zenith angles. The LTP functions can also be obtained from data using events simultaneously observed by the fluorescence and the surface detector of the Pierre Auger Observatory (hybrid events). We validate the Monte-Carlo results showing how LTP functions from data are in good agreement with simulations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.6645v1-abstract-full').style.display = 'none'; document.getElementById('1111.6645v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 November, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">22 pages, 8 figures. Published in Astroparticle Physics</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Astroparticle Physics 35 (2011) 266-276 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.4809">arXiv:1107.4809</a> <span> [<a href="https://arxiv.org/pdf/1107.4809">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The Pierre Auger Observatory I: The Cosmic Ray Energy Spectrum and Related Measurements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allard%2C+D">D. Allard</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allen%2C+J">J. Allen</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">A. Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%8Di%C4%87%2C+T">T. Anti膷i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Anzalone%2C+A">A. Anzalone</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arganda%2C+E">E. Arganda</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Ave%2C+M">M. Ave</a>, <a href="/search/hep-ex?searchtype=author&query=Avenier%2C+M">M. Avenier</a> , et al. (471 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.4809v1-abstract-short" style="display: inline;"> Studies of the cosmic ray energy spectrum at the highest energies with the Pierre Auger Observatory </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.4809v1-abstract-full" style="display: none;"> Studies of the cosmic ray energy spectrum at the highest energies with the Pierre Auger Observatory <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.4809v1-abstract-full').style.display = 'none'; document.getElementById('1107.4809v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contributions to the 32nd International Cosmic Ray Conference, Beijing, China, August 2011</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.4807">arXiv:1107.4807</a> <span> [<a href="https://arxiv.org/pdf/1107.4807">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/375/1/052006">10.1088/1742-6596/375/1/052006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Pierre Auger Observatory V: Enhancements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allard%2C+D">D. Allard</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allen%2C+J">J. Allen</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">A. Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%8Di%C4%87%2C+T">T. Anti膷i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Anzalone%2C+A">A. Anzalone</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arganda%2C+E">E. Arganda</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Ave%2C+M">M. Ave</a>, <a href="/search/hep-ex?searchtype=author&query=Avenier%2C+M">M. Avenier</a> , et al. (471 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.4807v1-abstract-short" style="display: inline;"> Ongoing and planned enhancements of the Pierre Auger Observatory </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.4807v1-abstract-full" style="display: none;"> Ongoing and planned enhancements of the Pierre Auger Observatory <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.4807v1-abstract-full').style.display = 'none'; document.getElementById('1107.4807v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contributions to 32nd International Cosmic Ray Conference, Beijing, China, August 2011</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.4806">arXiv:1107.4806</a> <span> [<a href="https://arxiv.org/pdf/1107.4806">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> The Pierre Auger Observatory IV: Operation and Monitoring </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allard%2C+D">D. Allard</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allen%2C+J">J. Allen</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">A. Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%8Di%C4%87%2C+T">T. Anti膷i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Anzalone%2C+A">A. Anzalone</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arganda%2C+E">E. Arganda</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Ave%2C+M">M. Ave</a>, <a href="/search/hep-ex?searchtype=author&query=Avenier%2C+M">M. Avenier</a> , et al. (471 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.4806v1-abstract-short" style="display: inline;"> Technical reports on operations and monitoring of the Pierre Auger Observatory </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.4806v1-abstract-full" style="display: none;"> Technical reports on operations and monitoring of the Pierre Auger Observatory <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.4806v1-abstract-full').style.display = 'none'; document.getElementById('1107.4806v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Constributions to 32nd International Cosmic Ray Conference, Beijing, China, August 2011</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.4805">arXiv:1107.4805</a> <span> [<a href="https://arxiv.org/pdf/1107.4805">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The Pierre Auger Observatory III: Other Astrophysical Observations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allard%2C+D">D. Allard</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allen%2C+J">J. Allen</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">A. Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%8Di%C4%87%2C+T">T. Anti膷i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Anzalone%2C+A">A. Anzalone</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arganda%2C+E">E. Arganda</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Ave%2C+M">M. Ave</a>, <a href="/search/hep-ex?searchtype=author&query=Avenier%2C+M">M. Avenier</a> , et al. (471 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.4805v1-abstract-short" style="display: inline;"> Astrophysical observations of ultra-high-energy cosmic rays with the Pierre Auger Observatory </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.4805v1-abstract-full" style="display: none;"> Astrophysical observations of ultra-high-energy cosmic rays with the Pierre Auger Observatory <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.4805v1-abstract-full').style.display = 'none'; document.getElementById('1107.4805v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contributions to the 32nd International Cosmic Ray Conference, Beijing, China, August 2011</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.4804">arXiv:1107.4804</a> <span> [<a href="https://arxiv.org/pdf/1107.4804">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The Pierre Auger Observatory II: Studies of Cosmic Ray Composition and Hadronic Interaction models </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Pierre+Auger+Collaboration"> The Pierre Auger Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abreu%2C+P">P. Abreu</a>, <a href="/search/hep-ex?searchtype=author&query=Aglietta%2C+M">M. Aglietta</a>, <a href="/search/hep-ex?searchtype=author&query=Ahn%2C+E+J">E. J. Ahn</a>, <a href="/search/hep-ex?searchtype=author&query=Albuquerque%2C+I+F+M">I. F. M. Albuquerque</a>, <a href="/search/hep-ex?searchtype=author&query=Allard%2C+D">D. Allard</a>, <a href="/search/hep-ex?searchtype=author&query=Allekotte%2C+I">I. Allekotte</a>, <a href="/search/hep-ex?searchtype=author&query=Allen%2C+J">J. Allen</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Castillo%2C+J+A">J. Alvarez Castillo</a>, <a href="/search/hep-ex?searchtype=author&query=Alvarez-Mu%C3%B1iz%2C+J">J. Alvarez-Mu帽iz</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosio%2C+M">M. Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Aminaei%2C+A">A. Aminaei</a>, <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">L. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%8Di%C4%87%2C+T">T. Anti膷i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Anzalone%2C+A">A. Anzalone</a>, <a href="/search/hep-ex?searchtype=author&query=Aramo%2C+C">C. Aramo</a>, <a href="/search/hep-ex?searchtype=author&query=Arganda%2C+E">E. Arganda</a>, <a href="/search/hep-ex?searchtype=author&query=Arqueros%2C+F">F. Arqueros</a>, <a href="/search/hep-ex?searchtype=author&query=Asorey%2C+H">H. Asorey</a>, <a href="/search/hep-ex?searchtype=author&query=Assis%2C+P">P. Assis</a>, <a href="/search/hep-ex?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/hep-ex?searchtype=author&query=Ave%2C+M">M. Ave</a>, <a href="/search/hep-ex?searchtype=author&query=Avenier%2C+M">M. Avenier</a> , et al. (471 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.4804v1-abstract-short" style="display: inline;"> Studies of the composition of the highest energy cosmic rays with the Pierre Auger Observatory, including examination of hadronic physics effects on the structure of extensive air showers. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.4804v1-abstract-full" style="display: none;"> Studies of the composition of the highest energy cosmic rays with the Pierre Auger Observatory, including examination of hadronic physics effects on the structure of extensive air showers. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.4804v1-abstract-full').style.display = 'none'; document.getElementById('1107.4804v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contributions to the 32nd International Cosmic Ray Conference, Beijing, China, August 2011</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.4309">arXiv:1107.4309</a> <span> [<a href="https://arxiv.org/pdf/1107.4309">pdf</a>, <a href="https://arxiv.org/ps/1107.4309">ps</a>, <a href="https://arxiv.org/format/1107.4309">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.85.086003">10.1103/PhysRevD.85.086003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Z'-gauge Bosons as Harbingers of Low Mass Strings </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Antoniadis%2C+I">Ignatios Antoniadis</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Huang%2C+X">Xing Huang</a>, <a href="/search/hep-ex?searchtype=author&query=Lust%2C+D">Dieter Lust</a>, <a href="/search/hep-ex?searchtype=author&query=Taylor%2C+T+R">Tomasz R. Taylor</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.4309v3-abstract-short" style="display: inline;"> Massive Z'-gauge bosons act as excellent harbingers for string compactifications with a low string scale. In D-brane models they are associated to U(1) gauge symmetries that are either anomalous in four dimensions or exhibit a hidden higher dimensional anomaly. We discuss the possible signals of massive Z'-gauge bosons at hadron collider machines (Tevatron, LHC) in a minimal D-brane model consisti… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.4309v3-abstract-full').style.display = 'inline'; document.getElementById('1107.4309v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.4309v3-abstract-full" style="display: none;"> Massive Z'-gauge bosons act as excellent harbingers for string compactifications with a low string scale. In D-brane models they are associated to U(1) gauge symmetries that are either anomalous in four dimensions or exhibit a hidden higher dimensional anomaly. We discuss the possible signals of massive Z'-gauge bosons at hadron collider machines (Tevatron, LHC) in a minimal D-brane model consisting out of four stacks of D-branes. In this construction, there are two massive gauge bosons, which can be naturally associated with baryon number B and B-L (L being lepton number). Here baryon number is always anomalous in four dimensions, whereas the presence of a four-dimensional B-L anomaly depends on the U(1)-charges of the right handed neutrinos. In case B-L is anomaly free, a mass hierarchy between the two associated Z'-gauge bosons can be explained. In our phenomenological discussion about the possible discovery of massive Z'-gauge bosons, we take as a benchmark scenario the dijet plus W signal, recently observed by the CDF Collaboration at Tevatron. It reveals an excess in the dijet mass range 150 GeV/c^2, 4.1蟽beyond SM expectations. We show that in the context of low-mass string theory this excess can be associated with the production and decay of a leptophobic Z', a singlet partner of SU(3) gluons coupled primarily to baryon number. Even if the CDF signal disappears, as indicated by the more recent D0 results, our analysis can still serve as the basis for future experimental search for massive Z'-gauge bosons in low string scale models. We provide the relevant cross sections for the production of Z'-gauge bosons in the TeV region, leading to predictions that are within reach of the present or the next LHC run. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.4309v3-abstract-full').style.display = 'none'; document.getElementById('1107.4309v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 March, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To be published in PRD</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MPP-2011-86; LMU-ASC 32/11; CERN-PH-TH/2011-180 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1104.2302">arXiv:1104.2302</a> <span> [<a href="https://arxiv.org/pdf/1104.2302">pdf</a>, <a href="https://arxiv.org/ps/1104.2302">ps</a>, <a href="https://arxiv.org/format/1104.2302">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2011.05.049">10.1016/j.physletb.2011.05.049 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Stringy origin of Tevatron Wjj anomaly </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Huang%2C+X">Xing Huang</a>, <a href="/search/hep-ex?searchtype=author&query=Lust%2C+D">Dieter Lust</a>, <a href="/search/hep-ex?searchtype=author&query=Taylor%2C+T+R">Tomasz R. Taylor</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1104.2302v3-abstract-short" style="display: inline;"> The invariant mass distribution of dijets produced in association with W bosons, recently observed by the CDF Collaboration at Tevatron, reveals an excess in the dijet mass range 120-160 GeV/c^2, 3蟽beyond Standard Model expectations. We show that such an excess is a generic feature of low mass string theory, due to the production and decay of a leptophobic Z', a singlet partner of SU(3) gluons cou… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1104.2302v3-abstract-full').style.display = 'inline'; document.getElementById('1104.2302v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1104.2302v3-abstract-full" style="display: none;"> The invariant mass distribution of dijets produced in association with W bosons, recently observed by the CDF Collaboration at Tevatron, reveals an excess in the dijet mass range 120-160 GeV/c^2, 3蟽beyond Standard Model expectations. We show that such an excess is a generic feature of low mass string theory, due to the production and decay of a leptophobic Z', a singlet partner of SU(3) gluons coupled primarily to the U(1) baryon number. In this framework, U(1) and SU(3) appear as subgroups of U(3) associated with open strings ending on a stack of 3 D-branes. In addition, a minimal model contains two other stacks to accommodate the electro-weak SU(2) \in U(2) and the hypercharge U(1). Of the three U(1) gauge bosons, the two heavy Z' and Z" receive masses through the Green-Schwarz mechanism. For a given Z' mass, the model is quite constrained. Fine tuning three of its free parameters is just sufficient to simultaneously ensure: a small Z-Z' mixing in accord with the stringent LEP data on the $Z$ mass; very small (less than 1%) branching ratio into leptons; and a large hierarchy between Z" and Z' masses. The heavier neutral gauge boson Z" is within the reach of LHC. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1104.2302v3-abstract-full').style.display = 'none'; document.getElementById('1104.2302v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 May, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 April, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">v1 8 pages revtex; v2 better fit to the data (Z" within LHC reach), references added; v3 to appear in PLB</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MPP--2011--41; LMU-ASC 13/11; CERN-PH-TH/2011-079 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B701:224-228,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1012.3466">arXiv:1012.3466</a> <span> [<a href="https://arxiv.org/pdf/1012.3466">pdf</a>, <a href="https://arxiv.org/ps/1012.3466">ps</a>, <a href="https://arxiv.org/format/1012.3466">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.83.106006">10.1103/PhysRevD.83.106006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Searching for string resonances in e^+e^- and 纬纬collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Feng%2C+W">Wan-Zhe Feng</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Huang%2C+X">Xing Huang</a>, <a href="/search/hep-ex?searchtype=author&query=Taylor%2C+T+R">Tomasz R. Taylor</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1012.3466v2-abstract-short" style="display: inline;"> If the fundamental mass scale of superstring theory is as low as few TeVs, the massive modes of vibrating strings, Regge excitations, will be copiously produced at the Large Hadron Collider (LHC). We discuss the complementary signals of low mass superstrings at the proposed electron-positron facility (CLIC), in e^+e^- and 纬纬collisions. We examine all relevant four-particle amplitudes evaluated at… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.3466v2-abstract-full').style.display = 'inline'; document.getElementById('1012.3466v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1012.3466v2-abstract-full" style="display: none;"> If the fundamental mass scale of superstring theory is as low as few TeVs, the massive modes of vibrating strings, Regge excitations, will be copiously produced at the Large Hadron Collider (LHC). We discuss the complementary signals of low mass superstrings at the proposed electron-positron facility (CLIC), in e^+e^- and 纬纬collisions. We examine all relevant four-particle amplitudes evaluated at the center of mass energies near the mass of lightest Regge excitations and extract the corresponding pole terms. The Regge poles of all four-point amplitudes, in particular the spin content of the resonances, are completely model independent, universal properties of the entire landscape of string compactifications. We show that 纬纬\to e^+ e^- scattering proceeds only through a spin-2 Regge state. We estimate that for this particular channel, string scales as high as 4 TeV can be discovered at the 11蟽level with the first fb^{-1} of data collected at a center-of-mass energy \approx 5 TeV. We also show that for e^+e^- annihilation into fermion-antifermion pairs, string theory predicts the precise value, equal 1/3, of the relative weight of spin 2 and spin 1 contributions. This yields a dimuon angular distribution with a pronounced forward-backward asymmetry, which will help distinguishing between low mass strings and other beyond the standard model scenarios. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.3466v2-abstract-full').style.display = 'none'; document.getElementById('1012.3466v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 April, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To be published in Phys. Rev. D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D83:106006,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1012.1870">arXiv:1012.1870</a> <span> [<a href="https://arxiv.org/pdf/1012.1870">pdf</a>, <a href="https://arxiv.org/ps/1012.1870">ps</a>, <a href="https://arxiv.org/format/1012.1870">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.83.114046">10.1103/PhysRevD.83.114046 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Searching for the Layered Structure of Space at the LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Dai%2C+D+C">De Chang Dai</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Landsberg%2C+G">Greg Landsberg</a>, <a href="/search/hep-ex?searchtype=author&query=Shaughnessy%2C+G">Gabe Shaughnessy</a>, <a href="/search/hep-ex?searchtype=author&query=Stojkovic%2C+D">Dejan Stojkovic</a>, <a href="/search/hep-ex?searchtype=author&query=Weiler%2C+T+J">Thomas J. Weiler</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1012.1870v2-abstract-short" style="display: inline;"> Alignment of the main energy fluxes along a straight line in a target plane has been observed in families of cosmic ray particles detected in the Pamir mountains. The fraction of events with alignment is statistically significant for families with superhigh energies and large numbers of hadrons. This can be interpreted as evidence for coplanar hard-scattering of secondary hadrons produced in the e… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.1870v2-abstract-full').style.display = 'inline'; document.getElementById('1012.1870v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1012.1870v2-abstract-full" style="display: none;"> Alignment of the main energy fluxes along a straight line in a target plane has been observed in families of cosmic ray particles detected in the Pamir mountains. The fraction of events with alignment is statistically significant for families with superhigh energies and large numbers of hadrons. This can be interpreted as evidence for coplanar hard-scattering of secondary hadrons produced in the early stages of the atmospheric cascade development. This phenomenon can be described within the recently proposed "crystal world," with latticized and anisotropic spatial dimensions. Planar events are expected to dominate particle collisions at a hard-scattering energy exceeding the scale 螞_3 at which space transitions from 3D \rightleftharpoons 2D. We study specific collider signatures that will test this hypothesis. We show that the energy-spectrum of Drell-Yan scattering and the parton momenta sum rule are significantly modified in this framework. At the LHC, two jet and three jet events are necessarily planar, but four jet events can test the hypothesis. Accordingly, we study in a model-independent way the 5蟽discovery reach of the ATLAS and CMS experiments for identifying four jets coplanarities. For the extreme scenario in which all pp \to 4 jet scattering processes become coplanar above 螞_3, we show that with an integrated luminosity of 10(100) fb^{-1} the LHC experiments have the potential to discover correlations between jets if 螞_3 \alt 1.25(1.6) TeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.1870v2-abstract-full').style.display = 'none'; document.getElementById('1012.1870v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 June, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To be published in Phys. Rev. D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> ANL-HEP-PR-10-53, NUHEP-TH/10-23 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D83:114046,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1006.3044">arXiv:1006.3044</a> <span> [<a href="https://arxiv.org/pdf/1006.3044">pdf</a>, <a href="https://arxiv.org/ps/1006.3044">ps</a>, <a href="https://arxiv.org/format/1006.3044">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.82.106010">10.1103/PhysRevD.82.106010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> LHC Phenomenology of Lowest Massive Regge Recurrences in the Randall-Sundrum Orbifold </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Huang%2C+X">Xing Huang</a>, <a href="/search/hep-ex?searchtype=author&query=Taylor%2C+T+R">Tomasz R. Taylor</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1006.3044v2-abstract-short" style="display: inline;"> We consider string realizations of the Randall-Sundrum effective theory for electroweak symmetry breaking and explore the search for the lowest massive Regge excitation of the gluon and of the extra (color singlet) gauge boson inherent of D-brane constructions. In these curved backgrounds, the higher-spin Regge recurrences of Standard Model fields localized near the IR brane are warped down to clo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.3044v2-abstract-full').style.display = 'inline'; document.getElementById('1006.3044v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1006.3044v2-abstract-full" style="display: none;"> We consider string realizations of the Randall-Sundrum effective theory for electroweak symmetry breaking and explore the search for the lowest massive Regge excitation of the gluon and of the extra (color singlet) gauge boson inherent of D-brane constructions. In these curved backgrounds, the higher-spin Regge recurrences of Standard Model fields localized near the IR brane are warped down to close to the TeV range and hence can be produced at collider experiments. Assuming that the theory is weakly coupled, we make use of four gauge boson amplitudes evaluated near the first Regge pole to determine the discovery potential of LHC. We study the inclusive dijet mass spectrum in the central rapidity region |y_{jet}| < 1.0 for dijet masses M \geq 2.5 TeV. We find that with an integrated luminosity of 100 fb^{-1}, the 5蟽discovery reach can be as high as 4.7 TeV. Observations of resonant structures in pp \rightarrow direct 纬+ jet can provide interesting corroboration for string physics up to 3.0 TeV. We also study the ratio of dijet mass spectra at small and large scattering angles. We show that with the first fb^{-1} such a ratio can probe lowest-lying Regge states for masses \sim 2.5 TeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.3044v2-abstract-full').style.display = 'none'; document.getElementById('1006.3044v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 October, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 June, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To be published in Physical Review D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D82:106010,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0912.0517">arXiv:0912.0517</a> <span> [<a href="https://arxiv.org/pdf/0912.0517">pdf</a>, <a href="https://arxiv.org/ps/0912.0517">ps</a>, <a href="https://arxiv.org/format/0912.0517">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2009.12.037">10.1016/j.physletb.2009.12.037 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neutralino dark matter annihilation to monoenergetic gamma rays as a signal of low mass superstrings </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Hooper%2C+D">Dan Hooper</a>, <a href="/search/hep-ex?searchtype=author&query=Marfatia%2C+D">Danny Marfatia</a>, <a href="/search/hep-ex?searchtype=author&query=Taylor%2C+T+R">Tomasz R. Taylor</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0912.0517v2-abstract-short" style="display: inline;"> We consider extensions of the standard model based on open strings ending on D-branes, in which gauge bosons and their associated gauginos exist as strings attached to stacks of D-branes, and chiral matter exists as strings stretching between intersecting D-branes. Under the assumptions that the fundamental string scale is in the TeV range and the theory is weakly coupled, we study models of sup… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0912.0517v2-abstract-full').style.display = 'inline'; document.getElementById('0912.0517v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0912.0517v2-abstract-full" style="display: none;"> We consider extensions of the standard model based on open strings ending on D-branes, in which gauge bosons and their associated gauginos exist as strings attached to stacks of D-branes, and chiral matter exists as strings stretching between intersecting D-branes. Under the assumptions that the fundamental string scale is in the TeV range and the theory is weakly coupled, we study models of supersymmetry for which signals of annihilating neutralino dark matter are observable. In particular, we construct a model with a supersymmetric R-symmetry violating (but R-parity conserving) effective Lagrangian that allows for the s-wave annihilation of neutralinos, once gauginos acquire mass through an unspecified mechanism. The model yields bino-like neutralinos (with the measured relic abundance) that annihilate to a gamma-gamma final state with a substantial branching fraction (~ 10%) that is orders of magnitude larger than in the minimal supersymmetric standard model. A very bright gamma-ray spectral line could be observed by gamma-ray telescopes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0912.0517v2-abstract-full').style.display = 'none'; document.getElementById('0912.0517v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 December, 2009; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 December, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2009. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 revtex pages, 2 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-PH-TH/2009-220, FERMILAB-PUB-09-579-A </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B683:321-325,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0808.0497">arXiv:0808.0497</a> <span> [<a href="https://arxiv.org/pdf/0808.0497">pdf</a>, <a href="https://arxiv.org/ps/0808.0497">ps</a>, <a href="https://arxiv.org/format/0808.0497">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.101.241803">10.1103/PhysRevLett.101.241803 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Dijet signals for low mass strings at the LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Lust%2C+D">Dieter Lust</a>, <a href="/search/hep-ex?searchtype=author&query=Nawata%2C+S">Satoshi Nawata</a>, <a href="/search/hep-ex?searchtype=author&query=Stieberger%2C+S">Stephan Stieberger</a>, <a href="/search/hep-ex?searchtype=author&query=Taylor%2C+T+R">Tomasz R. Taylor</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0808.0497v3-abstract-short" style="display: inline;"> We consider extensions of the standard model based on open strings ending on D-branes, with gauge bosons due to strings attached to stacks of D-branes and chiral matter due to strings stretching between intersecting D-branes. Assuming that the fundamental string mass scale is in the TeV range and the theory is weakly coupled, we discuss possible signals of string physics at the Large Hadron Collid… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0808.0497v3-abstract-full').style.display = 'inline'; document.getElementById('0808.0497v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0808.0497v3-abstract-full" style="display: none;"> We consider extensions of the standard model based on open strings ending on D-branes, with gauge bosons due to strings attached to stacks of D-branes and chiral matter due to strings stretching between intersecting D-branes. Assuming that the fundamental string mass scale is in the TeV range and the theory is weakly coupled, we discuss possible signals of string physics at the Large Hadron Collider (LHC). In such D-brane constructions, the dominant contributions to full-fledged string amplitudes for all the common QCD parton subprocesses leading to dijets are completely independent of the details of compactification, and can be evaluated in a parameter-free manner. We make use of these amplitudes evaluated near the first resonant pole to determine the discovery potential of LHC for the first Regge excitations of the quark and gluon. Remarkably, the reach of LHC after a few years of running can be as high as 6.8 TeV. Even after the first 100 pb^{-1} of integrated luminosity, string scales as high as 4.0 TeV can be discovered. For string scales as high as 5.0 TeV, observations of resonant structures in pp \to {\rm direct} 纬+ jet can provide interesting corroboration for string physics at the TeV-scale. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0808.0497v3-abstract-full').style.display = 'none'; document.getElementById('0808.0497v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 June, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 August, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">v2 contains discussion on dijet angular distributions. To be published in Physical Review Letters; v3 typographical error in equations (8), (9), (10), and (11) has been corrected</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MPP-2008-86, LMU-ASC 42/08, NUB-3262-Th-08 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett.101:241803,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0806.3420">arXiv:0806.3420</a> <span> [<a href="https://arxiv.org/pdf/0806.3420">pdf</a>, <a href="https://arxiv.org/ps/0806.3420">ps</a>, <a href="https://arxiv.org/format/0806.3420">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Astrophysics">astro-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2008.09.003">10.1016/j.physletb.2008.09.003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Decay widths of lowest massive Regge excitations of open strings </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Taylor%2C+T+R">Tomasz R. Taylor</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0806.3420v2-abstract-short" style="display: inline;"> With the advent of the LHC there is widespread interest in the discovery potential for physics beyond the standard model. In TeV-scale open string theory, the new physics can be manifest in the excitation and decay of new resonant structures, corresponding to Regge recurrences of standard model particles. An essential input for the prediction of invariant mass spectra of the decay products (whic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0806.3420v2-abstract-full').style.display = 'inline'; document.getElementById('0806.3420v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0806.3420v2-abstract-full" style="display: none;"> With the advent of the LHC there is widespread interest in the discovery potential for physics beyond the standard model. In TeV-scale open string theory, the new physics can be manifest in the excitation and decay of new resonant structures, corresponding to Regge recurrences of standard model particles. An essential input for the prediction of invariant mass spectra of the decay products (which could serve to identify the resonance as a string excitation) are the partial and total widths of the decay products. We present a parameter-free calculation of these widths for the first Regge recurrence of the SU(3) gluon octet, of the U(1) gauge boson which accompanies gluons in D-brane constructions, and of the quark triplet. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0806.3420v2-abstract-full').style.display = 'none'; document.getElementById('0806.3420v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 July, 2008; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 June, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages revtex, 1 eps figure</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LMU-ASC 36/08 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B668:373-377,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0804.2013">arXiv:0804.2013</a> <span> [<a href="https://arxiv.org/pdf/0804.2013">pdf</a>, <a href="https://arxiv.org/ps/0804.2013">ps</a>, <a href="https://arxiv.org/format/0804.2013">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.78.016005">10.1103/PhysRevD.78.016005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Direct photons as probes of low mass strings at the LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Nawata%2C+S">Satoshi Nawata</a>, <a href="/search/hep-ex?searchtype=author&query=Taylor%2C+T+R">Tomasz R. Taylor</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0804.2013v4-abstract-short" style="display: inline;"> The LHC program will include the identification of events with single prompt high-k_\perp photons as probes of new physics. We show that this channel is uniquely suited to search for experimental evidence of TeV-scale open string theory. At the parton level, we analyze single photon production in gluon fusion, gg \to 纬g, with open string states propagating in intermediate channels. If the photon… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0804.2013v4-abstract-full').style.display = 'inline'; document.getElementById('0804.2013v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0804.2013v4-abstract-full" style="display: none;"> The LHC program will include the identification of events with single prompt high-k_\perp photons as probes of new physics. We show that this channel is uniquely suited to search for experimental evidence of TeV-scale open string theory. At the parton level, we analyze single photon production in gluon fusion, gg \to 纬g, with open string states propagating in intermediate channels. If the photon mixes with the gauge boson of the baryon number, which is a common feature of D-brane quivers, the amplitude appears already at the string disk level. It is completely determined by the mixing parameter (which is actually determined in the minimal theory) -- and it is otherwise model-(compactification-) independent. We discuss the string signal cross sections as well as the QCD background. The present analysis takes into account the recently obtained decay widths of first Regge recurrences, which are necessary for more precise determination of these cross sections in the resonant region. A vital part of the background discussion concerns the minimization of misidentified 蟺^0's emerging from high-p_\perp jets. We show that even for relatively small mixing, 100 fb^-1 of LHC data could probe deviations from standard model physics associated with TeV-scale strings at a 5蟽significance, for M_{\rm string} as large as 2.3 TeV. It is also likely that resonant bumps could be observed with approximately the same signal-to-noise ratio. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0804.2013v4-abstract-full').style.display = 'none'; document.getElementById('0804.2013v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 July, 2008; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 April, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Updated to match the published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D78:016005,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0504228">arXiv:hep-ph/0504228</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0504228">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0504228">ps</a>, <a href="https://arxiv.org/format/hep-ph/0504228">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Astrophysics">astro-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.96.021101">10.1103/PhysRevLett.96.021101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Particle Physics on Ice: Constraints on Neutrino Interactions Far Above the Weak Scale </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Feng%2C+J+L">Jonathan L. Feng</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="hep-ph/0504228v2-abstract-short" style="display: inline;"> Ultra-high energy cosmic rays and neutrinos probe energies far above the weak scale. Their usefulness might appear to be limited by astrophysical uncertainties; however, by simultaneously considering up- and down-going events, one may disentangle particle physics from astrophysics. We show that present data from the AMANDA experiment in the South Pole ice already imply an upper bound on neutrino… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0504228v2-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0504228v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0504228v2-abstract-full" style="display: none;"> Ultra-high energy cosmic rays and neutrinos probe energies far above the weak scale. Their usefulness might appear to be limited by astrophysical uncertainties; however, by simultaneously considering up- and down-going events, one may disentangle particle physics from astrophysics. We show that present data from the AMANDA experiment in the South Pole ice already imply an upper bound on neutrino cross sections at energy scales that will likely never be probed at man-made accelerators. The existing data also place an upper limit on the neutrino flux valid for any neutrino cross section. In the future, similar analyses of IceCube data will constrain neutrino properties and fluxes at the O(10%) level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0504228v2-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0504228v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 December, 2005; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 April, 2005; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2005. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, 1 figure, published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> NUB-3255-Th-05, UCI-TR-2005-13 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett. 96 (2006) 021101 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/astro-ph/0409470">arXiv:astro-ph/0409470</a> <span> [<a href="https://arxiv.org/pdf/astro-ph/0409470">pdf</a>, <a href="https://arxiv.org/ps/astro-ph/0409470">ps</a>, <a href="https://arxiv.org/format/astro-ph/0409470">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Astrophysics">astro-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1142/9789812701756_0013">10.1142/9789812701756_0013 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Pierre Auger Observatory: Science Prospects and Performance at First Light </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="astro-ph/0409470v1-abstract-short" style="display: inline;"> The Pierre Auger Observatory is a major international effort aiming at high-statistics study of highest energy cosmic rays. A general description of the experimental set-up and overall performance of the detector at first light are presented. </span> <span class="abstract-full has-text-grey-dark mathjax" id="astro-ph/0409470v1-abstract-full" style="display: none;"> The Pierre Auger Observatory is a major international effort aiming at high-statistics study of highest energy cosmic rays. A general description of the experimental set-up and overall performance of the detector at first light are presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('astro-ph/0409470v1-abstract-full').style.display = 'none'; document.getElementById('astro-ph/0409470v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 September, 2004; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2004. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contribution to the Proceedings of PASCOS '04</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0408284">arXiv:hep-ph/0408284</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0408284">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0408284">ps</a>, <a href="https://arxiv.org/format/hep-ph/0408284">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Astrophysics">astro-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.71.065014">10.1103/PhysRevD.71.065014 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Probing Split Supersymmetry with Cosmic Rays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">Luis Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Nunez%2C+C">Carlos Nunez</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="hep-ph/0408284v3-abstract-short" style="display: inline;"> A striking aspect of the recently proposed split supersymmetry is the existence of heavy gluinos which are metastable because of the very heavy squarks which mediate their decay. In this paper we correlate the expected flux of these particles with the accompanying neutrino flux produced in inelastic $pp$ collisions in distant astrophysical sources. We show that an event rate at the Pierre Auger… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0408284v3-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0408284v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0408284v3-abstract-full" style="display: none;"> A striking aspect of the recently proposed split supersymmetry is the existence of heavy gluinos which are metastable because of the very heavy squarks which mediate their decay. In this paper we correlate the expected flux of these particles with the accompanying neutrino flux produced in inelastic $pp$ collisions in distant astrophysical sources. We show that an event rate at the Pierre Auger Observatory of approximately 1 yr$^{-1}$ for gluino masses of about 500 GeV is consistent with existing limits on neutrino fluxes. The extremely low inelasticity of the gluino-containing hadrons in their collisions with the air molecules makes possible a distinct characterization of the showers induced in the atmosphere. Should such anomalous events be observed, we show that their cosmogenic origin, in concert with the requirement that they reach the Earth before decay, leads to a lower bound on their proper lifetime of the order of 100 years, and consequently, to a lower bound on the scale of supersymmetry breaking, $螞_{\rm SUSY} >2.6 \times 10^{11}$ GeV. Obtaining such a bound is not possible in collider experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0408284v3-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0408284v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 March, 2005; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 August, 2004; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2004. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Version to be published in Phys. Rev. D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> NUB-3250-Th-04, MIT-CTP-3524 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D71:065014,2005 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0403001">arXiv:hep-ph/0403001</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0403001">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0403001">ps</a>, <a href="https://arxiv.org/format/hep-ph/0403001">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Astrophysics">astro-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="General Relativity and Quantum Cosmology">gr-qc</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1142/9789812704030_0042">10.1142/9789812704030_0042 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Frontiers in Cosmic Rays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Dermer%2C+C+D">Charles D. Dermer</a>, <a href="/search/hep-ex?searchtype=author&query=Ringwald%2C+A">Andreas Ringwald</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="hep-ph/0403001v1-abstract-short" style="display: inline;"> This rapporteur review covers selected results presented in the Parallel Session HEA2 (High Energy Astrophysics 2) of the 10th Marcel Grossmann Meeting on General Relativity, held in Rio de Janeiro, Brazil, July 2003. The subtopics are: ultra high energy cosmic ray anisotropies, the possible connection of these energetic particles with powerful gamma ray bursts, and new exciting scenarios with a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0403001v1-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0403001v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0403001v1-abstract-full" style="display: none;"> This rapporteur review covers selected results presented in the Parallel Session HEA2 (High Energy Astrophysics 2) of the 10th Marcel Grossmann Meeting on General Relativity, held in Rio de Janeiro, Brazil, July 2003. The subtopics are: ultra high energy cosmic ray anisotropies, the possible connection of these energetic particles with powerful gamma ray bursts, and new exciting scenarios with a strong neutrino-nucleon interaction in the atmosphere. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0403001v1-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0403001v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 February, 2004; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2004. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">20 pages, 8 eps figures. Rapporteur Review of the Parallel Session: High Energy Astrophysics 2; to appear in Proceedings of the Tenth Marcel Grossmann Meeting on General Relativity, edited by M. Novello, S. Perez-Bergliaffa and R. Ruffini, World Scientific, Singapore, 2005. (MGX Rio de Janeiro, Brazil, July, 2003)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> NUB-3248/Th-04 - DESY 04-031 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0311365">arXiv:hep-ph/0311365</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0311365">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0311365">ps</a>, <a href="https://arxiv.org/format/hep-ph/0311365">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Astrophysics">astro-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="General Relativity and Quantum Cosmology">gr-qc</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2004.05.051">10.1016/j.physletb.2004.05.051 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Inelastic Black Hole Production and Large Extra Dimensions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Feng%2C+J+L">Jonathan L. Feng</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Shapere%2C+A+D">Alfred D. Shapere</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="hep-ph/0311365v2-abstract-short" style="display: inline;"> Black hole production in elementary particle collisions is among the most promising probes of large extra spacetime dimensions. Studies of black holes at particle colliders have assumed that all of the incoming energy is captured in the resulting black hole. We incorporate the inelasticity inherent in such processes and determine the prospects for discovering black holes in colliders and cosmic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0311365v2-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0311365v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0311365v2-abstract-full" style="display: none;"> Black hole production in elementary particle collisions is among the most promising probes of large extra spacetime dimensions. Studies of black holes at particle colliders have assumed that all of the incoming energy is captured in the resulting black hole. We incorporate the inelasticity inherent in such processes and determine the prospects for discovering black holes in colliders and cosmic ray experiments, employing a dynamical model of Hawking evolution. At the Large Hadron Collider, inelasticity reduces rates by factors of 10^3 to 10^6 in the accessible parameter space, moderating, but not eliminating, hopes for black hole discovery. At the Pierre Auger Observatory, rates are suppressed by a factor of 10. We evaluate the impact of cosmic ray observations on collider prospects. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0311365v2-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0311365v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 December, 2003; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 November, 2003; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2003. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">References added</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> NUB-3243-TH-03, UCI-TR-2003-30, UK/03-15 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett. B594 (2004) 363-367 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0310054">arXiv:hep-ph/0310054</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0310054">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0310054">ps</a>, <a href="https://arxiv.org/format/hep-ph/0310054">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Astrophysics">astro-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="General Relativity and Quantum Cosmology">gr-qc</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2003.12.072">10.1016/j.physletb.2003.12.072 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Footprints of Super-GZK Cosmic Rays in the Pilliga State Forest </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L">Luis Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="hep-ph/0310054v1-abstract-short" style="display: inline;"> High energy cosmic ray data collected by the SUGAR Collaboration in the Pilliga State Forest have been re-analyzed using up-to-date shower simulations. Complete, inclined angle, Monte Carlo simulations reveal 2 events with energies in excess of $7\times 10^{19}$ eV at 95% CL, independent of the choice of hadronic interaction model and of chemical composition of the primary. An additional 3 event… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0310054v1-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0310054v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0310054v1-abstract-full" style="display: none;"> High energy cosmic ray data collected by the SUGAR Collaboration in the Pilliga State Forest have been re-analyzed using up-to-date shower simulations. Complete, inclined angle, Monte Carlo simulations reveal 2 events with energies in excess of $7\times 10^{19}$ eV at 95% CL, independent of the choice of hadronic interaction model and of chemical composition of the primary. An additional 3 events, with mean energy $\agt 7\times 10^{19}$ eV, were also re-analyzed in the same manner. A lower bound on the flux at the high end of the spectrum, as observed in the Southern sky, is presented on the basis of our analysis. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0310054v1-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0310054v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 October, 2003; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2003. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages revtex, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> NUB-3241-TH-03 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett. B583 (2004) 213-221 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0309082">arXiv:hep-ph/0309082</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0309082">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0309082">ps</a>, <a href="https://arxiv.org/format/hep-ph/0309082">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Astrophysics">astro-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="General Relativity and Quantum Cosmology">gr-qc</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> </div> <p class="title is-5 mathjax"> Quest for Black Holes and Superstring Excitations in Cosmic Ray Data </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anchordoqui%2C+L+A">Luis A. Anchordoqui</a>, <a href="/search/hep-ex?searchtype=author&query=Feng%2C+J+L">Jonathan L. Feng</a>, <a href="/search/hep-ex?searchtype=author&query=Goldberg%2C+H">Haim Goldberg</a>, <a href="/search/hep-ex?searchtype=author&query=Shapere%2C+A+D">Alfred D. Shapere</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="hep-ph/0309082v4-abstract-short" style="display: inline;"> In this talk we discuss aspects of TeV-scale gravitational collapse to black holes and string balls and their subsequent evaporation. Special emphasis is placed on the interplay of the string/black hole correspondence principle. These ideas are then explored in the context of cosmic ray physics. First, the potential for observing showers mediated by black holes or superstring excitations is exam… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0309082v4-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0309082v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0309082v4-abstract-full" style="display: none;"> In this talk we discuss aspects of TeV-scale gravitational collapse to black holes and string balls and their subsequent evaporation. Special emphasis is placed on the interplay of the string/black hole correspondence principle. These ideas are then explored in the context of cosmic ray physics. First, the potential for observing showers mediated by black holes or superstring excitations is examined. Next, existing data from neutrino telescopes are used to constrain the parameter space for the unseen dimensions of the universe. Finally, we close with a discussion of future prospects. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0309082v4-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0309082v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 October, 2003; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 September, 2003; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2003. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Talk given at the International Workshop on Particle Physics and the Early Universe -COSMO 03- Ambleside, Lake District, U.K. (August 25-29, 2003) Website at http://www.ippp.dur.ac.uk/cosmo03/ (reference added)</span> </p> 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