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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <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/2411.08681">arXiv:2411.08681</a> <span> [<a href="https://arxiv.org/pdf/2411.08681">pdf</a>, <a href="https://arxiv.org/format/2411.08681">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the emittance of accelerated electron bunches at the AWAKE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Cooke%2C+D+A">D. A. Cooke</a>, <a href="/search/physics?searchtype=author&query=Pannell%2C+F">F. Pannell</a>, <a href="/search/physics?searchtype=author&query=Della+Porta%2C+G+Z">G. Zevi Della Porta</a>, <a href="/search/physics?searchtype=author&query=Farmer%2C+J">J. Farmer</a>, <a href="/search/physics?searchtype=author&query=Bencini%2C+V">V. Bencini</a>, <a href="/search/physics?searchtype=author&query=Bergamaschi%2C+M">M. Bergamaschi</a>, <a href="/search/physics?searchtype=author&query=Mazzoni%2C+S">S. Mazzoni</a>, <a href="/search/physics?searchtype=author&query=Ranc%2C+L">L. Ranc</a>, <a href="/search/physics?searchtype=author&query=Senes%2C+E">E. Senes</a>, <a href="/search/physics?searchtype=author&query=Sherwood%2C+P">P. Sherwood</a>, <a href="/search/physics?searchtype=author&query=Wing%2C+M">M. Wing</a>, <a href="/search/physics?searchtype=author&query=Agnello%2C+R">R. Agnello</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C+C">C. C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Amoedo%2C+C">C. Amoedo</a>, <a href="/search/physics?searchtype=author&query=Andrebe%2C+Y">Y. Andrebe</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+O">O. Apsimon</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+R">R. Apsimon</a>, <a href="/search/physics?searchtype=author&query=Arnesano%2C+J+M">J. M. Arnesano</a>, <a href="/search/physics?searchtype=author&query=Blanchard%2C+P">P. Blanchard</a>, <a href="/search/physics?searchtype=author&query=Burrows%2C+P+N">P. N. Burrows</a>, <a href="/search/physics?searchtype=author&query=Buttensch%C3%B6n%2C+B">B. Buttensch枚n</a>, <a href="/search/physics?searchtype=author&query=Caldwell%2C+A">A. Caldwell</a>, <a href="/search/physics?searchtype=author&query=Chung%2C+M">M. Chung</a>, <a href="/search/physics?searchtype=author&query=Clairembaud%2C+A">A. Clairembaud</a>, <a href="/search/physics?searchtype=author&query=Davut%2C+C">C. Davut</a> , et al. (59 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="2411.08681v1-abstract-short" style="display: inline;"> The vertical plane transverse emittance of accelerated electron bunches at the AWAKE experiment at CERN has been determined, using three different methods of data analysis. This is a proof-of-principle measurement using the existing AWAKE electron spectrometer to validate the measurement technique. Large values of the geometric emittance, compared to that of the injection beam, are observed (… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.08681v1-abstract-full').style.display = 'inline'; document.getElementById('2411.08681v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.08681v1-abstract-full" style="display: none;"> The vertical plane transverse emittance of accelerated electron bunches at the AWAKE experiment at CERN has been determined, using three different methods of data analysis. This is a proof-of-principle measurement using the existing AWAKE electron spectrometer to validate the measurement technique. Large values of the geometric emittance, compared to that of the injection beam, are observed ($\sim \SI{0.5}{\milli\metre\milli\radian}$ compared with $\sim \SI{0.08}{\milli\metre\milli\radian}$), which is in line with expectations of emittance growth arising from plasma density ramps and large injection beam bunch size. Future iterations of AWAKE are anticipated to operate in conditions where emittance growth is better controlled, and the effects of the imaging systems of the existing and future spectrometer designs on the ability to measure the emittance are discussed. Good performance of the instrument down to geometric emittances of approximately $\SI{1e-4}{\milli\metre\milli\radian}$ is required, which may be possible with improved electron optics and imaging. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.08681v1-abstract-full').style.display = 'none'; document.getElementById('2411.08681v1-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> 13 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">20 pages, 9 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/2411.02966">arXiv:2411.02966</a> <span> [<a href="https://arxiv.org/pdf/2411.02966">pdf</a>, <a href="https://arxiv.org/format/2411.02966">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-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/10.5281/zenodo.13970100">10.5281/zenodo.13970100 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> MuCol Milestone Report No. 5: Preliminary Parameters </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Accettura%2C+C">Carlotta Accettura</a>, <a href="/search/physics?searchtype=author&query=Adrian%2C+S">Simon Adrian</a>, <a href="/search/physics?searchtype=author&query=Agarwal%2C+R">Rohit Agarwal</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">Claudia Ahdida</a>, <a href="/search/physics?searchtype=author&query=Aim%C3%A9%2C+C">Chiara Aim茅</a>, <a href="/search/physics?searchtype=author&query=Aksoy%2C+A">Avni Aksoy</a>, <a href="/search/physics?searchtype=author&query=Alberghi%2C+G+L">Gian Luigi Alberghi</a>, <a href="/search/physics?searchtype=author&query=Alden%2C+S">Siobhan Alden</a>, <a href="/search/physics?searchtype=author&query=Alfonso%2C+L">Luca Alfonso</a>, <a href="/search/physics?searchtype=author&query=Amapane%2C+N">Nicola Amapane</a>, <a href="/search/physics?searchtype=author&query=Amorim%2C+D">David Amorim</a>, <a href="/search/physics?searchtype=author&query=Andreetto%2C+P">Paolo Andreetto</a>, <a href="/search/physics?searchtype=author&query=Anulli%2C+F">Fabio Anulli</a>, <a href="/search/physics?searchtype=author&query=Appleby%2C+R">Rob Appleby</a>, <a href="/search/physics?searchtype=author&query=Apresyan%2C+A">Artur Apresyan</a>, <a href="/search/physics?searchtype=author&query=Asadi%2C+P">Pouya Asadi</a>, <a href="/search/physics?searchtype=author&query=Mahmoud%2C+M+A">Mohammed Attia Mahmoud</a>, <a href="/search/physics?searchtype=author&query=Auchmann%2C+B">Bernhard Auchmann</a>, <a href="/search/physics?searchtype=author&query=Back%2C+J">John Back</a>, <a href="/search/physics?searchtype=author&query=Badea%2C+A">Anthony Badea</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+K+J">Kyu Jung Bae</a>, <a href="/search/physics?searchtype=author&query=Bahng%2C+E+J">E. J. Bahng</a>, <a href="/search/physics?searchtype=author&query=Balconi%2C+L">Lorenzo Balconi</a>, <a href="/search/physics?searchtype=author&query=Balli%2C+F">Fabrice Balli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a> , et al. (369 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="2411.02966v1-abstract-short" style="display: inline;"> This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. The updated preliminary parameters follow on from the October 2023 Tentative Parameters Report. Particular attention has been given to regions of the facility that are believed to hold greater technical uncertainty in their design and that have a strong impact on the cost and power… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.02966v1-abstract-full').style.display = 'inline'; document.getElementById('2411.02966v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.02966v1-abstract-full" style="display: none;"> This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. The updated preliminary parameters follow on from the October 2023 Tentative Parameters Report. Particular attention has been given to regions of the facility that are believed to hold greater technical uncertainty in their design and that have a strong impact on the cost and power consumption of the facility. The data is collected from a collaborative spreadsheet and transferred to overleaf. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.02966v1-abstract-full').style.display = 'none'; document.getElementById('2411.02966v1-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, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.01988">arXiv:2410.01988</a> <span> [<a href="https://arxiv.org/pdf/2410.01988">pdf</a>, <a href="https://arxiv.org/format/2410.01988">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> </div> <p class="title is-5 mathjax"> Exploring diffusion bonding of niobium and its alloys with tungsten and a molybdenum alloy for high-energy particle target applications </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Griesemer%2C+T">Tina Griesemer</a>, <a href="/search/physics?searchtype=author&query=Ximenes%2C+R+F">Rui Franqueira Ximenes</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">Claudia Ahdida</a>, <a href="/search/physics?searchtype=author&query=Izquierdo%2C+G+A">Gonzalo Arnau Izquierdo</a>, <a href="/search/physics?searchtype=author&query=Santillana%2C+I+A">Ignacio Aviles Santillana</a>, <a href="/search/physics?searchtype=author&query=Callaghan%2C+J">Jack Callaghan</a>, <a href="/search/physics?searchtype=author&query=Dumont%2C+G">Gerald Dumont</a>, <a href="/search/physics?searchtype=author&query=Dutilleul%2C+T">Thomas Dutilleul</a>, <a href="/search/physics?searchtype=author&query=Terricabras%2C+A+G">Adria Gallifa Terricabras</a>, <a href="/search/physics?searchtype=author&query=H%C3%B6ll%2C+S">Stefan H枚ll</a>, <a href="/search/physics?searchtype=author&query=Jacobsson%2C+R">Richard Jacobsson</a>, <a href="/search/physics?searchtype=author&query=Kyffin%2C+W">William Kyffin</a>, <a href="/search/physics?searchtype=author&query=Mamun%2C+A+A">Abdullah Al Mamun</a>, <a href="/search/physics?searchtype=author&query=Mazzola%2C+G">Giuseppe Mazzola</a>, <a href="/search/physics?searchtype=author&query=Fontenla%2C+A+T+P">Ana Teresa P茅rez Fontenla</a>, <a href="/search/physics?searchtype=author&query=De+Frutos%2C+O+S">Oscar Sacristan De Frutos</a>, <a href="/search/physics?searchtype=author&query=Esposito%2C+L+S">Luigi Salvatore Esposito</a>, <a href="/search/physics?searchtype=author&query=Sgobba%2C+S">Stefano Sgobba</a>, <a href="/search/physics?searchtype=author&query=Calviani%2C+M">Marco Calviani</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="2410.01988v1-abstract-short" style="display: inline;"> Particle-producing targets in high-energy research facilities are often made from refractory metals, and they typically require dedicated cooling systems due to the challenging thermomechanical conditions they experience. However, direct contact of water with target blocks can induce erosion, corrosion, and embrittlement, especially of tungsten (W). One approach to overcoming this problem is cladd… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.01988v1-abstract-full').style.display = 'inline'; document.getElementById('2410.01988v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.01988v1-abstract-full" style="display: none;"> Particle-producing targets in high-energy research facilities are often made from refractory metals, and they typically require dedicated cooling systems due to the challenging thermomechanical conditions they experience. However, direct contact of water with target blocks can induce erosion, corrosion, and embrittlement, especially of tungsten (W). One approach to overcoming this problem is cladding the blocks with tantalum (Ta). Unfortunately, Ta generates high decay heat when irradiated, raising safety concerns in the event of a loss-of-cooling accident. This study explored the capacity of niobium (Nb) and its alloys to form diffusion bonds with W and TZM (a molybdenum alloy with titanium and zirconium). This is because the Beam Dump Facility (BDF), a planned new fixed-target installation in CERN's North Area, uses these target materials. The bonding quality of pure Nb, Nb1Zr, and C103 (a Nb alloy with 10% hafnium and 1% titanium) with TZM and W obtained using hot isostatic pressing (HIP) was evaluated. The effects of different HIP temperatures and the introduction of a Ta interlayer were examined. Optical microscopy indicated promising bonding interfaces, which were further characterized using tensile tests and thermal-diffusivity measurements. Their performance under high-energy beam impact was validated using thermomechanical simulations. C103 exhibited higher interface strengths and safety factors than Ta2.5W, positioning it as a potential alternative cladding material for the BDF production target. The findings highlight the viability of Nb-based materials, particularly C103, for improving operational safety and efficiency in fixed-target physics experiments; however, considerations regarding the long half-life of 94Nb require further attention. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.01988v1-abstract-full').style.display = 'none'; document.getElementById('2410.01988v1-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 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.12450">arXiv:2407.12450</a> <span> [<a href="https://arxiv.org/pdf/2407.12450">pdf</a>, <a href="https://arxiv.org/format/2407.12450">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</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"> Interim report for the International Muon Collider Collaboration (IMCC) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Accettura%2C+C">C. Accettura</a>, <a href="/search/physics?searchtype=author&query=Adrian%2C+S">S. Adrian</a>, <a href="/search/physics?searchtype=author&query=Agarwal%2C+R">R. Agarwal</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Aim%C3%A9%2C+C">C. Aim茅</a>, <a href="/search/physics?searchtype=author&query=Aksoy%2C+A">A. Aksoy</a>, <a href="/search/physics?searchtype=author&query=Alberghi%2C+G+L">G. L. Alberghi</a>, <a href="/search/physics?searchtype=author&query=Alden%2C+S">S. Alden</a>, <a href="/search/physics?searchtype=author&query=Amapane%2C+N">N. Amapane</a>, <a href="/search/physics?searchtype=author&query=Amorim%2C+D">D. Amorim</a>, <a href="/search/physics?searchtype=author&query=Andreetto%2C+P">P. Andreetto</a>, <a href="/search/physics?searchtype=author&query=Anulli%2C+F">F. Anulli</a>, <a href="/search/physics?searchtype=author&query=Appleby%2C+R">R. Appleby</a>, <a href="/search/physics?searchtype=author&query=Apresyan%2C+A">A. Apresyan</a>, <a href="/search/physics?searchtype=author&query=Asadi%2C+P">P. Asadi</a>, <a href="/search/physics?searchtype=author&query=Mahmoud%2C+M+A">M. Attia Mahmoud</a>, <a href="/search/physics?searchtype=author&query=Auchmann%2C+B">B. Auchmann</a>, <a href="/search/physics?searchtype=author&query=Back%2C+J">J. Back</a>, <a href="/search/physics?searchtype=author&query=Badea%2C+A">A. Badea</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+K+J">K. J. Bae</a>, <a href="/search/physics?searchtype=author&query=Bahng%2C+E+J">E. J. Bahng</a>, <a href="/search/physics?searchtype=author&query=Balconi%2C+L">L. Balconi</a>, <a href="/search/physics?searchtype=author&query=Balli%2C+F">F. Balli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Barbagallo%2C+C">C. Barbagallo</a> , et al. (362 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="2407.12450v1-abstract-short" style="display: inline;"> The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implementation of the European Strategy for Particle Physics-Accelerator R&D Roadmap by the Laboratory Directors Group [2], hereinafter referred to as the the European LDG roadmap. The Muon Collider Study (MuC) covers the accele… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.12450v1-abstract-full').style.display = 'inline'; document.getElementById('2407.12450v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.12450v1-abstract-full" style="display: none;"> The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implementation of the European Strategy for Particle Physics-Accelerator R&D Roadmap by the Laboratory Directors Group [2], hereinafter referred to as the the European LDG roadmap. The Muon Collider Study (MuC) covers the accelerator complex, detectors and physics for a future muon collider. In 2023, European Commission support was obtained for a design study of a muon collider (MuCol) [3]. This project started on 1st March 2023, with work-packages aligned with the overall muon collider studies. In preparation of and during the 2021-22 U.S. Snowmass process, the muon collider project parameters, technical studies and physics performance studies were performed and presented in great detail. Recently, the P5 panel [4] in the U.S. recommended a muon collider R&D, proposed to join the IMCC and envisages that the U.S. should prepare to host a muon collider, calling this their "muon shot". In the past, the U.S. Muon Accelerator Programme (MAP) [5] has been instrumental in studies of concepts and technologies for a muon collider. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.12450v1-abstract-full').style.display = 'none'; document.getElementById('2407.12450v1-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 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">This document summarises the International Muon Collider Collaboration (IMCC) progress and status of the Muon Collider R&D programme</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.08533">arXiv:2303.08533</a> <span> [<a href="https://arxiv.org/pdf/2303.08533">pdf</a>, <a href="https://arxiv.org/format/2303.08533">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-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> <p class="title is-5 mathjax"> Towards a Muon Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Accettura%2C+C">Carlotta Accettura</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">Dean Adams</a>, <a href="/search/physics?searchtype=author&query=Agarwal%2C+R">Rohit Agarwal</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">Claudia Ahdida</a>, <a href="/search/physics?searchtype=author&query=Aim%C3%A8%2C+C">Chiara Aim猫</a>, <a href="/search/physics?searchtype=author&query=Amapane%2C+N">Nicola Amapane</a>, <a href="/search/physics?searchtype=author&query=Amorim%2C+D">David Amorim</a>, <a href="/search/physics?searchtype=author&query=Andreetto%2C+P">Paolo Andreetto</a>, <a href="/search/physics?searchtype=author&query=Anulli%2C+F">Fabio Anulli</a>, <a href="/search/physics?searchtype=author&query=Appleby%2C+R">Robert Appleby</a>, <a href="/search/physics?searchtype=author&query=Apresyan%2C+A">Artur Apresyan</a>, <a href="/search/physics?searchtype=author&query=Apyan%2C+A">Aram Apyan</a>, <a href="/search/physics?searchtype=author&query=Arsenyev%2C+S">Sergey Arsenyev</a>, <a href="/search/physics?searchtype=author&query=Asadi%2C+P">Pouya Asadi</a>, <a href="/search/physics?searchtype=author&query=Mahmoud%2C+M+A">Mohammed Attia Mahmoud</a>, <a href="/search/physics?searchtype=author&query=Azatov%2C+A">Aleksandr Azatov</a>, <a href="/search/physics?searchtype=author&query=Back%2C+J">John Back</a>, <a href="/search/physics?searchtype=author&query=Balconi%2C+L">Lorenzo Balconi</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Barlow%2C+R">Roger Barlow</a>, <a href="/search/physics?searchtype=author&query=Bartosik%2C+N">Nazar Bartosik</a>, <a href="/search/physics?searchtype=author&query=Barzi%2C+E">Emanuela Barzi</a>, <a href="/search/physics?searchtype=author&query=Batsch%2C+F">Fabian Batsch</a>, <a href="/search/physics?searchtype=author&query=Bauce%2C+M">Matteo Bauce</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+J+S">J. Scott Berg</a> , et al. (272 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="2303.08533v2-abstract-short" style="display: inline;"> A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high luminosity and 10 TeV centre of mass energy are being investigated by the recently-formed International Muon Collider Collaboration. This Review summarises the status and the recent advances on muon colliders desi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.08533v2-abstract-full').style.display = 'inline'; document.getElementById('2303.08533v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.08533v2-abstract-full" style="display: none;"> A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high luminosity and 10 TeV centre of mass energy are being investigated by the recently-formed International Muon Collider Collaboration. This Review summarises the status and the recent advances on muon colliders design, physics and detector studies. The aim is to provide a global perspective of the field and to outline directions for future work. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.08533v2-abstract-full').style.display = 'none'; document.getElementById('2303.08533v2-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 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </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">118 pages, 103 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/2212.14452">arXiv:2212.14452</a> <span> [<a href="https://arxiv.org/pdf/2212.14452">pdf</a>, <a href="https://arxiv.org/format/2212.14452">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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"> Letter of Intent: the NA60+ experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Alocco%2C+G">G. Alocco</a>, <a href="/search/physics?searchtype=author&query=Antinori%2C+F">F. Antinori</a>, <a href="/search/physics?searchtype=author&query=Arba%2C+M">M. Arba</a>, <a href="/search/physics?searchtype=author&query=Aresti%2C+M">M. Aresti</a>, <a href="/search/physics?searchtype=author&query=Arnaldi%2C+R">R. Arnaldi</a>, <a href="/search/physics?searchtype=author&query=Roldan%2C+A+B">A. Baratto Roldan</a>, <a href="/search/physics?searchtype=author&query=Beole%2C+S">S. Beole</a>, <a href="/search/physics?searchtype=author&query=Beraudo%2C+A">A. Beraudo</a>, <a href="/search/physics?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/physics?searchtype=author&query=Bianchi%2C+L">L. Bianchi</a>, <a href="/search/physics?searchtype=author&query=Borysova%2C+M">M. Borysova</a>, <a href="/search/physics?searchtype=author&query=Bressler%2C+S">S. Bressler</a>, <a href="/search/physics?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/physics?searchtype=author&query=Casula%2C+E">E. Casula</a>, <a href="/search/physics?searchtype=author&query=Cicalo%2C+C">C. Cicalo</a>, <a href="/search/physics?searchtype=author&query=Coli%2C+S">S. Coli</a>, <a href="/search/physics?searchtype=author&query=Cortese%2C+P">P. Cortese</a>, <a href="/search/physics?searchtype=author&query=Dainese%2C+A">A. Dainese</a>, <a href="/search/physics?searchtype=author&query=Danielsson%2C+H">H. Danielsson</a>, <a href="/search/physics?searchtype=author&query=De+Falco%2C+A">A. De Falco</a>, <a href="/search/physics?searchtype=author&query=Dehmelt%2C+K">K. Dehmelt</a>, <a href="/search/physics?searchtype=author&query=Drees%2C+A">A. Drees</a>, <a href="/search/physics?searchtype=author&query=Ferretti%2C+A">A. Ferretti</a>, <a href="/search/physics?searchtype=author&query=Fionda%2C+F">F. Fionda</a> , et al. (37 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="2212.14452v1-abstract-short" style="display: inline;"> We propose a new fixed-target experiment for the study of electromagnetic and hard probes of the Quark-Gluon Plasma (QGP) in heavy-ion collisions at the CERN SPS. The experiment aims at performing measurements of the dimuon spectrum from threshold up to the charmonium region, and of hadronic decays of charm and strange hadrons. It is based on a muon spectrometer, which includes a toroidal magnet a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.14452v1-abstract-full').style.display = 'inline'; document.getElementById('2212.14452v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.14452v1-abstract-full" style="display: none;"> We propose a new fixed-target experiment for the study of electromagnetic and hard probes of the Quark-Gluon Plasma (QGP) in heavy-ion collisions at the CERN SPS. The experiment aims at performing measurements of the dimuon spectrum from threshold up to the charmonium region, and of hadronic decays of charm and strange hadrons. It is based on a muon spectrometer, which includes a toroidal magnet and six planes of tracking detectors, coupled to a vertex spectrometer, equipped with Si MAPS immersed in a dipole field. High luminosity is an essential requirement for the experiment, with the goal of taking data with 10$^6$ incident ions/s, at collision energies ranging from $\sqrt{s_{\rm NN}} = 6.3$ GeV ($E_{\rm lab}= 20$ A GeV) to top SPS energy ($\sqrt{s_{\rm NN}} = 17.3$ GeV, $E_{\rm lab}= 158$ A GeV). This document presents the physics motivation, the foreseen experimental set-up including integration and radioprotection studies, the current detector choices together with the status of the corresponding R&D, and the outcome of physics performance studies. A preliminary cost evaluation is also carried out. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.14452v1-abstract-full').style.display = 'none'; document.getElementById('2212.14452v1-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 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">Letter of Intent submitted to the CERN SPSC</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-SPSC-2022-036 / SPSC-I-259 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2210.17527">arXiv:2210.17527</a> <span> [<a href="https://arxiv.org/pdf/2210.17527">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-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.nima.2022.167887">10.1016/j.nima.2022.167887 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Design of beam optics and radiation protection concept for the NA60+ heavy-ion experiment at CERN </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gerbershagen%2C+A">A. Gerbershagen</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/physics?searchtype=author&query=Clerc%2C+V">V. Clerc</a>, <a href="/search/physics?searchtype=author&query=Girod%2C+S">S. Girod</a>, <a href="/search/physics?searchtype=author&query=Scomparin%2C+E">E. Scomparin</a>, <a href="/search/physics?searchtype=author&query=Usai%2C+G">G. Usai</a>, <a href="/search/physics?searchtype=author&query=Vincke%2C+H">H. Vincke</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="2210.17527v1-abstract-short" style="display: inline;"> NA60+ is a fixed target experiment proposed in the framework of the Physics Beyond Colliders programme at CERN. It aims to precisely measure the hard and electromagnetic probes in nuclear collisions. Initially proposed for the underground cavern ECN3 with very high beam intensities, the experiment now foresees a location in the EHN1 surface hall which was shown to have a limited impact on the phys… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.17527v1-abstract-full').style.display = 'inline'; document.getElementById('2210.17527v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2210.17527v1-abstract-full" style="display: none;"> NA60+ is a fixed target experiment proposed in the framework of the Physics Beyond Colliders programme at CERN. It aims to precisely measure the hard and electromagnetic probes in nuclear collisions. Initially proposed for the underground cavern ECN3 with very high beam intensities, the experiment now foresees a location in the EHN1 surface hall which was shown to have a limited impact on the physics performance in spite of a significant reduction of beam intensity and detector size. The potential installation and operation of the experiment with the ion beams from the Super Proton Synchrotron (SPS) has been examined regarding detector integration, beam physics, radiation protection and shielding requirements. The integration of the experiment is considered feasible, but would require a significant reconfiguration of the existing hall infrastructure with regards to shielding and layout. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.17527v1-abstract-full').style.display = 'none'; document.getElementById('2210.17527v1-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, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">21 pages, 15 figures, submitted to Nucl. Instr. Meth. A. Editor: A. Gerbershagen</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2206.06040">arXiv:2206.06040</a> <span> [<a href="https://arxiv.org/pdf/2206.06040">pdf</a>, <a href="https://arxiv.org/format/2206.06040">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-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="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> The AWAKE Run 2 programme and beyond </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gschwendtner%2C+E">Edda Gschwendtner</a>, <a href="/search/physics?searchtype=author&query=Lotov%2C+K">Konstantin Lotov</a>, <a href="/search/physics?searchtype=author&query=Muggli%2C+P">Patric Muggli</a>, <a href="/search/physics?searchtype=author&query=Wing%2C+M">Matthew Wing</a>, <a href="/search/physics?searchtype=author&query=Agnello%2C+R">Riccardo Agnello</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C+C">Claudia Christina Ahdida</a>, <a href="/search/physics?searchtype=author&query=Goncalves%2C+M+C+A">Maria Carolina Amoedo Goncalves</a>, <a href="/search/physics?searchtype=author&query=Andrebe%2C+Y">Yanis Andrebe</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+O">Oznur Apsimon</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+R">Robert Apsimon</a>, <a href="/search/physics?searchtype=author&query=Arnesano%2C+J+M">Jordan Matias Arnesano</a>, <a href="/search/physics?searchtype=author&query=Bachmann%2C+A">Anna-Maria Bachmann</a>, <a href="/search/physics?searchtype=author&query=Barrientos%2C+D">Diego Barrientos</a>, <a href="/search/physics?searchtype=author&query=Batsch%2C+F">Fabian Batsch</a>, <a href="/search/physics?searchtype=author&query=Bencini%2C+V">Vittorio Bencini</a>, <a href="/search/physics?searchtype=author&query=Bergamaschi%2C+M">Michele Bergamaschi</a>, <a href="/search/physics?searchtype=author&query=Blanchard%2C+P">Patrick Blanchard</a>, <a href="/search/physics?searchtype=author&query=Burrows%2C+P+N">Philip Nicholas Burrows</a>, <a href="/search/physics?searchtype=author&query=Buttensch%C3%B6n%2C+B">Birger Buttensch枚n</a>, <a href="/search/physics?searchtype=author&query=Caldwell%2C+A">Allen Caldwell</a>, <a href="/search/physics?searchtype=author&query=Chappell%2C+J">James Chappell</a>, <a href="/search/physics?searchtype=author&query=Chevallay%2C+E">Eric Chevallay</a>, <a href="/search/physics?searchtype=author&query=Chung%2C+M">Moses Chung</a>, <a href="/search/physics?searchtype=author&query=Cooke%2C+D+A">David Andrew Cooke</a>, <a href="/search/physics?searchtype=author&query=Damerau%2C+H">Heiko Damerau</a> , et al. (77 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="2206.06040v1-abstract-short" style="display: inline;"> Plasma wakefield acceleration is a promising technology to reduce the size of particle accelerators. Use of high energy protons to drive wakefields in plasma has been demonstrated during Run 1 of the AWAKE programme at CERN. Protons of energy 400 GeV drove wakefields that accelerated electrons to 2 GeV in under 10 m of plasma. The AWAKE collaboration is now embarking on Run 2 with the main aims to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2206.06040v1-abstract-full').style.display = 'inline'; document.getElementById('2206.06040v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2206.06040v1-abstract-full" style="display: none;"> Plasma wakefield acceleration is a promising technology to reduce the size of particle accelerators. Use of high energy protons to drive wakefields in plasma has been demonstrated during Run 1 of the AWAKE programme at CERN. Protons of energy 400 GeV drove wakefields that accelerated electrons to 2 GeV in under 10 m of plasma. The AWAKE collaboration is now embarking on Run 2 with the main aims to demonstrate stable accelerating gradients of 0.5-1 GV/m, preserve emittance of the electron bunches during acceleration and develop plasma sources scalable to 100s of metres and beyond. By the end of Run 2, the AWAKE scheme should be able to provide electron beams for particle physics experiments and several possible experiments have already been evaluated. This article summarises the programme of AWAKE Run 2 and how it will be achieved as well as the possible application of the AWAKE scheme to novel particle physics experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2206.06040v1-abstract-full').style.display = 'none'; document.getElementById('2206.06040v1-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> 13 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">21 pages, 8 figures. Submitted to Symmetry journal</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2204.03549">arXiv:2204.03549</a> <span> [<a href="https://arxiv.org/pdf/2204.03549">pdf</a>, <a href="https://arxiv.org/format/2204.03549">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</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"> Study of alternative locations for the SPS Beam Dump Facility </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aberle%2C+O">Oliver Aberle</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">Claudia Ahdida</a>, <a href="/search/physics?searchtype=author&query=Arrutia%2C+P">Pablo Arrutia</a>, <a href="/search/physics?searchtype=author&query=Balazs%2C+K">Kincso Balazs</a>, <a href="/search/physics?searchtype=author&query=Bernhard%2C+J">Johannes Bernhard</a>, <a href="/search/physics?searchtype=author&query=Brugger%2C+M">Markus Brugger</a>, <a href="/search/physics?searchtype=author&query=Calviani%2C+M">Marco Calviani</a>, <a href="/search/physics?searchtype=author&query=Dutheil%2C+Y">Yann Dutheil</a>, <a href="/search/physics?searchtype=author&query=Ximenes%2C+R+F">Rui Franqueira Ximenes</a>, <a href="/search/physics?searchtype=author&query=Fraser%2C+M">Matthew Fraser</a>, <a href="/search/physics?searchtype=author&query=Galleazzi%2C+F">Frederic Galleazzi</a>, <a href="/search/physics?searchtype=author&query=Gilardoni%2C+S">Simone Gilardoni</a>, <a href="/search/physics?searchtype=author&query=Grenard%2C+J">Jean-Louis Grenard</a>, <a href="/search/physics?searchtype=author&query=Griesemer%2C+T">Tina Griesemer</a>, <a href="/search/physics?searchtype=author&query=Jacobsson%2C+R">Richard Jacobsson</a>, <a href="/search/physics?searchtype=author&query=Kain%2C+V">Verena Kain</a>, <a href="/search/physics?searchtype=author&query=Lafarge%2C+D">Damien Lafarge</a>, <a href="/search/physics?searchtype=author&query=Marsh%2C+S">Simon Marsh</a>, <a href="/search/physics?searchtype=author&query=Ruiz%2C+J+M+M">Jose Maria Martin Ruiz</a>, <a href="/search/physics?searchtype=author&query=Andrade%2C+R+F+M">Ramiro Francisco Mena Andrade</a>, <a href="/search/physics?searchtype=author&query=Muttoni%2C+Y">Yvon Muttoni</a>, <a href="/search/physics?searchtype=author&query=Cornago%2C+A+N">Angel Navascues Cornago</a>, <a href="/search/physics?searchtype=author&query=Ninin%2C+P">Pierre Ninin</a>, <a href="/search/physics?searchtype=author&query=Osborne%2C+J">John Osborne</a>, <a href="/search/physics?searchtype=author&query=Ramjiawan%2C+R">Rebecca Ramjiawan</a> , et al. (4 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="2204.03549v1-abstract-short" style="display: inline;"> As part of the main focus of the BDF Working Group in 2021, this document reports on the study of alternative locations and possible optimisation that may accompany the reuse of existing facilities with the aim of significantly reducing the costs of the facility. Building on the BDF/SHiP Comprehensive Design Study (CDS), the assessment rests on the generic requirements and constraints that allow p… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.03549v1-abstract-full').style.display = 'inline'; document.getElementById('2204.03549v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2204.03549v1-abstract-full" style="display: none;"> As part of the main focus of the BDF Working Group in 2021, this document reports on the study of alternative locations and possible optimisation that may accompany the reuse of existing facilities with the aim of significantly reducing the costs of the facility. Building on the BDF/SHiP Comprehensive Design Study (CDS), the assessment rests on the generic requirements and constraints that allow preserving the physics reach of the facility by making use of the $4\times 10^{19}$ protons per year at 400\,GeV that are currently not exploited at the SPS and for which no existing facility is compatible. The options considered involve the underground areas TCC4, TNC, and ECN3. Recent improvements of the BDF design at the current location (referred to as `TT90-TCC9-ECN4') are also mentioned together with ideas for yet further improvements. The assessments of the alternative locations compiled the large amount of information that is already available together with a set of conceptual studies that were performed during 2021. The document concludes with a qualitative comparison of the options, summarising the associated benefits and challenges of each option, such that a recommendation can be made about which location is to be pursued. The most critical location-specific studies required to specify the implementation and cost for each option are identified so that the detailed investigation of the retained option can be completed before the end of 2022. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.03549v1-abstract-full').style.display = 'none'; document.getElementById('2204.03549v1-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> 7 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-SPSC-2022-009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.12893">arXiv:2109.12893</a> <span> [<a href="https://arxiv.org/pdf/2109.12893">pdf</a>, <a href="https://arxiv.org/format/2109.12893">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-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/10.1088/1748-0221/16/11/P11031">10.1088/1748-0221/16/11/P11031 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analysis of Proton Bunch Parameters in the AWAKE Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hafych%2C+V">V. Hafych</a>, <a href="/search/physics?searchtype=author&query=Caldwell%2C+A">A. Caldwell</a>, <a href="/search/physics?searchtype=author&query=Agnello%2C+R">R. Agnello</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C+C">C. C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Aladi%2C+M">M. Aladi</a>, <a href="/search/physics?searchtype=author&query=Goncalves%2C+M+C+A">M. C. Amoedo Goncalves</a>, <a href="/search/physics?searchtype=author&query=Andrebe%2C+Y">Y. Andrebe</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+O">O. Apsimon</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+R">R. Apsimon</a>, <a href="/search/physics?searchtype=author&query=Bachmann%2C+A+-">A. -M. Bachmann</a>, <a href="/search/physics?searchtype=author&query=Baistrukov%2C+M+A">M. A. Baistrukov</a>, <a href="/search/physics?searchtype=author&query=Batsch%2C+F">F. Batsch</a>, <a href="/search/physics?searchtype=author&query=Bergamaschi%2C+M">M. Bergamaschi</a>, <a href="/search/physics?searchtype=author&query=Blanchard%2C+P">P. Blanchard</a>, <a href="/search/physics?searchtype=author&query=Burrows%2C+P+N">P. N. Burrows</a>, <a href="/search/physics?searchtype=author&query=Buttensch%C3%B6n%2C+B">B. Buttensch枚n</a>, <a href="/search/physics?searchtype=author&query=Chappell%2C+J">J. Chappell</a>, <a href="/search/physics?searchtype=author&query=Chevallay%2C+E">E. Chevallay</a>, <a href="/search/physics?searchtype=author&query=Chung%2C+M">M. Chung</a>, <a href="/search/physics?searchtype=author&query=Cooke%2C+D+A">D. A. Cooke</a>, <a href="/search/physics?searchtype=author&query=Damerau%2C+H">H. Damerau</a>, <a href="/search/physics?searchtype=author&query=Davut%2C+C">C. Davut</a>, <a href="/search/physics?searchtype=author&query=Demeter%2C+G">G. Demeter</a>, <a href="/search/physics?searchtype=author&query=Dexter%2C+A">A. Dexter</a>, <a href="/search/physics?searchtype=author&query=Doebert%2C+S">S. Doebert</a> , et al. (63 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="2109.12893v1-abstract-short" style="display: inline;"> A precise characterization of the incoming proton bunch parameters is required to accurately simulate the self-modulation process in the Advanced Wakefield Experiment (AWAKE). This paper presents an analysis of the parameters of the incoming proton bunches used in the later stages of the AWAKE Run 1 data-taking period. The transverse structure of the bunch is observed at multiple positions along t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.12893v1-abstract-full').style.display = 'inline'; document.getElementById('2109.12893v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.12893v1-abstract-full" style="display: none;"> A precise characterization of the incoming proton bunch parameters is required to accurately simulate the self-modulation process in the Advanced Wakefield Experiment (AWAKE). This paper presents an analysis of the parameters of the incoming proton bunches used in the later stages of the AWAKE Run 1 data-taking period. The transverse structure of the bunch is observed at multiple positions along the beamline using scintillating or optical transition radiation screens. The parameters of a model that describes the bunch transverse dimensions and divergence are fitted to represent the observed data using Bayesian inference. The analysis is tested on simulated data and then applied to the experimental data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.12893v1-abstract-full').style.display = 'none'; document.getElementById('2109.12893v1-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.11369">arXiv:2107.11369</a> <span> [<a href="https://arxiv.org/pdf/2107.11369">pdf</a>, <a href="https://arxiv.org/format/2107.11369">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-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/PhysRevAccelBeams.24.101301">10.1103/PhysRevAccelBeams.24.101301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Simulation and Experimental Study of Proton Bunch Self-Modulation in Plasma with Linear Density Gradients </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Guzm%C3%A1n%2C+P+I+M">P. I. Morales Guzm谩n</a>, <a href="/search/physics?searchtype=author&query=Muggli%2C+P">P. Muggli</a>, <a href="/search/physics?searchtype=author&query=Agnello%2C+R">R. Agnello</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C+C">C. C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Aladi%2C+M">M. Aladi</a>, <a href="/search/physics?searchtype=author&query=Goncalves%2C+M+C+A">M. C. Amoedo Goncalves</a>, <a href="/search/physics?searchtype=author&query=Andrebe%2C+Y">Y. Andrebe</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+O">O. Apsimon</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+R">R. Apsimon</a>, <a href="/search/physics?searchtype=author&query=Bachmann%2C+A+-">A. -M. Bachmann</a>, <a href="/search/physics?searchtype=author&query=Baistrukov%2C+M+A">M. A. Baistrukov</a>, <a href="/search/physics?searchtype=author&query=Batsch%2C+F">F. Batsch</a>, <a href="/search/physics?searchtype=author&query=Bergamaschi%2C+M">M. Bergamaschi</a>, <a href="/search/physics?searchtype=author&query=Blanchard%2C+P">P. Blanchard</a>, <a href="/search/physics?searchtype=author&query=Braunm%C3%BCller%2C+F">F. Braunm眉ller</a>, <a href="/search/physics?searchtype=author&query=Burrows%2C+P+N">P. N. Burrows</a>, <a href="/search/physics?searchtype=author&query=Buttensch%C3%B6n%2C+B">B. Buttensch枚n</a>, <a href="/search/physics?searchtype=author&query=Caldwell%2C+A">A. Caldwell</a>, <a href="/search/physics?searchtype=author&query=Chappell%2C+J">J. Chappell</a>, <a href="/search/physics?searchtype=author&query=Chevallay%2C+E">E. Chevallay</a>, <a href="/search/physics?searchtype=author&query=Chung%2C+M">M. Chung</a>, <a href="/search/physics?searchtype=author&query=Cooke%2C+D+A">D. A. Cooke</a>, <a href="/search/physics?searchtype=author&query=Damerau%2C+H">H. Damerau</a>, <a href="/search/physics?searchtype=author&query=Davut%2C+C">C. Davut</a>, <a href="/search/physics?searchtype=author&query=Demeter%2C+G">G. Demeter</a> , et al. (66 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="2107.11369v1-abstract-short" style="display: inline;"> We present numerical simulations and experimental results of the self-modulation of a long proton bunch in a plasma with linear density gradients along the beam path. Simulation results agree with the experimental results reported in arXiv:2007.14894v2: with negative gradients, the charge of the modulated bunch is lower than with positive gradients. In addition, the bunch modulation frequency vari… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.11369v1-abstract-full').style.display = 'inline'; document.getElementById('2107.11369v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.11369v1-abstract-full" style="display: none;"> We present numerical simulations and experimental results of the self-modulation of a long proton bunch in a plasma with linear density gradients along the beam path. Simulation results agree with the experimental results reported in arXiv:2007.14894v2: with negative gradients, the charge of the modulated bunch is lower than with positive gradients. In addition, the bunch modulation frequency varies with gradient. Simulation results show that dephasing of the wakefields with respect to the relativistic protons along the plasma is the main cause for the loss of charge. The study of the modulation frequency reveals details about the evolution of the self-modulation process along the plasma. In particular for negative gradients, the modulation frequency across time-resolved images of the bunch indicates the position along the plasma where protons leave the wakefields. Simulations and experimental results are in excellent agreement. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.11369v1-abstract-full').style.display = 'none'; document.getElementById('2107.11369v1-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 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">13 pages, 11 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Accel. Beams 24, 101301 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.09676">arXiv:2012.09676</a> <span> [<a href="https://arxiv.org/pdf/2012.09676">pdf</a>, <a href="https://arxiv.org/format/2012.09676">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-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.126.164802">10.1103/PhysRevLett.126.164802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Transition between Instability and Seeded Self-Modulation of a Relativistic Particle Bunch in Plasma </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Batsch%2C+F">F. Batsch</a>, <a href="/search/physics?searchtype=author&query=Muggli%2C+P">P. Muggli</a>, <a href="/search/physics?searchtype=author&query=Agnello%2C+R">R. Agnello</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C+C">C. C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Goncalves%2C+M+C+A">M. C. Amoedo Goncalves</a>, <a href="/search/physics?searchtype=author&query=Andrebe%2C+Y">Y. Andrebe</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+O">O. Apsimon</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+R">R. Apsimon</a>, <a href="/search/physics?searchtype=author&query=Bachmann%2C+A+-">A. -M. Bachmann</a>, <a href="/search/physics?searchtype=author&query=Baistrukov%2C+M+A">M. A. Baistrukov</a>, <a href="/search/physics?searchtype=author&query=Blanchard%2C+P">P. Blanchard</a>, <a href="/search/physics?searchtype=author&query=Braunm%C3%BCller%2C+F">F. Braunm眉ller</a>, <a href="/search/physics?searchtype=author&query=Burrows%2C+P+N">P. N. Burrows</a>, <a href="/search/physics?searchtype=author&query=Buttensch%C3%B6n%2C+B">B. Buttensch枚n</a>, <a href="/search/physics?searchtype=author&query=Caldwell%2C+A">A. Caldwell</a>, <a href="/search/physics?searchtype=author&query=Chappell%2C+J">J. Chappell</a>, <a href="/search/physics?searchtype=author&query=Chevallay%2C+E">E. Chevallay</a>, <a href="/search/physics?searchtype=author&query=Chung%2C+M">M. Chung</a>, <a href="/search/physics?searchtype=author&query=Cooke%2C+D+A">D. A. Cooke</a>, <a href="/search/physics?searchtype=author&query=Damerau%2C+H">H. Damerau</a>, <a href="/search/physics?searchtype=author&query=Davut%2C+C">C. Davut</a>, <a href="/search/physics?searchtype=author&query=Demeter%2C+G">G. Demeter</a>, <a href="/search/physics?searchtype=author&query=Deubner%2C+H+L">H. L. Deubner</a>, <a href="/search/physics?searchtype=author&query=Doebert%2C+S">S. Doebert</a>, <a href="/search/physics?searchtype=author&query=Farmer%2C+J">J. Farmer</a> , et al. (72 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="2012.09676v1-abstract-short" style="display: inline;"> We use a relativistic ionization front to provide various initial transverse wakefield amplitudes for the self-modulation of a long proton bunch in plasma. We show experimentally that, with sufficient initial amplitude ($\ge(4.1\pm0.4)$ MV/m), the phase of the modulation along the bunch is reproducible from event to event, with 3 to 7% (of 2$蟺$) rms variations all along the bunch. The phase is not… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.09676v1-abstract-full').style.display = 'inline'; document.getElementById('2012.09676v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.09676v1-abstract-full" style="display: none;"> We use a relativistic ionization front to provide various initial transverse wakefield amplitudes for the self-modulation of a long proton bunch in plasma. We show experimentally that, with sufficient initial amplitude ($\ge(4.1\pm0.4)$ MV/m), the phase of the modulation along the bunch is reproducible from event to event, with 3 to 7% (of 2$蟺$) rms variations all along the bunch. The phase is not reproducible for lower initial amplitudes. We observe the transition between these two regimes. Phase reproducibility is essential for deterministic external injection of particles to be accelerated. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.09676v1-abstract-full').style.display = 'none'; document.getElementById('2012.09676v1-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 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">Letter and Supplemental Material, 6 figures, 8 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 126, 164802 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.08722">arXiv:2002.08722</a> <span> [<a href="https://arxiv.org/pdf/2002.08722">pdf</a>, <a href="https://arxiv.org/format/2002.08722">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> <p class="title is-5 mathjax"> SND@LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=SHiP+Collaboration"> SHiP Collaboration</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Akmete%2C+A">A. Akmete</a>, <a href="/search/physics?searchtype=author&query=Albanese%2C+R">R. Albanese</a>, <a href="/search/physics?searchtype=author&query=Alexandrov%2C+A">A. Alexandrov</a>, <a href="/search/physics?searchtype=author&query=Andreini%2C+M">M. Andreini</a>, <a href="/search/physics?searchtype=author&query=Anokhina%2C+A">A. Anokhina</a>, <a href="/search/physics?searchtype=author&query=Aoki%2C+S">S. Aoki</a>, <a href="/search/physics?searchtype=author&query=Arduini%2C+G">G. Arduini</a>, <a href="/search/physics?searchtype=author&query=Atkin%2C+E">E. Atkin</a>, <a href="/search/physics?searchtype=author&query=Azorskiy%2C+N">N. Azorskiy</a>, <a href="/search/physics?searchtype=author&query=Back%2C+J+J">J. J. Back</a>, <a href="/search/physics?searchtype=author&query=Bagulya%2C+A">A. Bagulya</a>, <a href="/search/physics?searchtype=author&query=Santos%2C+F+B+D">F. Baaltasar Dos Santos</a>, <a href="/search/physics?searchtype=author&query=Baranov%2C+A">A. Baranov</a>, <a href="/search/physics?searchtype=author&query=Bardou%2C+F">F. Bardou</a>, <a href="/search/physics?searchtype=author&query=Barker%2C+G+J">G. J. Barker</a>, <a href="/search/physics?searchtype=author&query=Battistin%2C+M">M. Battistin</a>, <a href="/search/physics?searchtype=author&query=Bauche%2C+J">J. Bauche</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+A">A. Bay</a>, <a href="/search/physics?searchtype=author&query=Bayliss%2C+V">V. Bayliss</a>, <a href="/search/physics?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/physics?searchtype=author&query=Berdnikov%2C+A+Y">A. Y. Berdnikov</a>, <a href="/search/physics?searchtype=author&query=Berdnikov%2C+Y+A">Y. A. Berdnikov</a>, <a href="/search/physics?searchtype=author&query=Bertani%2C+M">M. Bertani</a> , et al. (319 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="2002.08722v1-abstract-short" style="display: inline;"> We propose to build and operate a detector that, for the first time, will measure the process $pp\to谓X$ at the LHC and search for feebly interacting particles (FIPs) in an unexplored domain. The TI18 tunnel has been identified as a suitable site to perform these measurements due to very low machine-induced background. The detector will be off-axis with respect to the ATLAS interaction point (IP1)… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.08722v1-abstract-full').style.display = 'inline'; document.getElementById('2002.08722v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.08722v1-abstract-full" style="display: none;"> We propose to build and operate a detector that, for the first time, will measure the process $pp\to谓X$ at the LHC and search for feebly interacting particles (FIPs) in an unexplored domain. The TI18 tunnel has been identified as a suitable site to perform these measurements due to very low machine-induced background. The detector will be off-axis with respect to the ATLAS interaction point (IP1) and, given the pseudo-rapidity range accessible, the corresponding neutrinos will mostly come from charm decays: the proposed experiment will thus make the first test of the heavy flavour production in a pseudo-rapidity range that is not accessible by the current LHC detectors. In order to efficiently reconstruct neutrino interactions and identify their flavour, the detector will combine in the target region nuclear emulsion technology with scintillating fibre tracking layers and it will adopt a muon identification system based on scintillating bars that will also play the role of a hadronic calorimeter. The time of flight measurement will be achieved thanks to a dedicated timing detector. The detector will be a small-scale prototype of the scattering and neutrino detector (SND) of the SHiP experiment: the operation of this detector will provide an important test of the neutrino reconstruction in a high occupancy environment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.08722v1-abstract-full').style.display = 'none'; document.getElementById('2002.08722v1-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 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">Letter of Intent</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-LHCC-2020-002, LHCC-I-035 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.06356">arXiv:1912.06356</a> <span> [<a href="https://arxiv.org/pdf/1912.06356">pdf</a>, <a href="https://arxiv.org/format/1912.06356">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-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/10.23731/CYRM-2020-002">10.23731/CYRM-2020-002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> SPS Beam Dump Facility -- Comprehensive Design Study </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Alia%2C+R+G">R. G. Alia</a>, <a href="/search/physics?searchtype=author&query=Arduini%2C+G">G. Arduini</a>, <a href="/search/physics?searchtype=author&query=Arnalich%2C+A">A. Arnalich</a>, <a href="/search/physics?searchtype=author&query=Avigni%2C+P">P. Avigni</a>, <a href="/search/physics?searchtype=author&query=Bardou%2C+F">F. Bardou</a>, <a href="/search/physics?searchtype=author&query=Battistin%2C+M">M. Battistin</a>, <a href="/search/physics?searchtype=author&query=Bauche%2C+J">J. Bauche</a>, <a href="/search/physics?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/physics?searchtype=author&query=Busom%2C+J">J. Busom</a>, <a href="/search/physics?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/physics?searchtype=author&query=Casolino%2C+M">M. Casolino</a>, <a href="/search/physics?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/physics?searchtype=author&query=Dougherty%2C+L">L. Dougherty</a>, <a href="/search/physics?searchtype=author&query=Dutheil%2C+Y">Y. Dutheil</a>, <a href="/search/physics?searchtype=author&query=Fornasiere%2C+E">E. Fornasiere</a>, <a href="/search/physics?searchtype=author&query=Fraser%2C+M+A">M. A. Fraser</a>, <a href="/search/physics?searchtype=author&query=Gatignon%2C+L">L. Gatignon</a>, <a href="/search/physics?searchtype=author&query=Gall%2C+J">J. Gall</a>, <a href="/search/physics?searchtype=author&query=Gilardoni%2C+S">S. Gilardoni</a>, <a href="/search/physics?searchtype=author&query=Goddard%2C+B">B. Goddard</a>, <a href="/search/physics?searchtype=author&query=Grenard%2C+J">J-L. Grenard</a>, <a href="/search/physics?searchtype=author&query=Grenier%2C+D">D. Grenier</a>, <a href="/search/physics?searchtype=author&query=Hessler%2C+C">C. Hessler</a>, <a href="/search/physics?searchtype=author&query=Jacobsson%2C+R">R. Jacobsson</a> , et al. (23 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="1912.06356v1-abstract-short" style="display: inline;"> The proposed Beam Dump Facility (BDF) is foreseen to be located at the North Area of the SPS. It is designed to be able to serve both beam dump like and fixed target experiments. The SPS and the new facility would offer unique possibilities to enter a new era of exploration at the intensity frontier. Possible options include searches for very weakly interacting particles predicted by Hidden Sector… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.06356v1-abstract-full').style.display = 'inline'; document.getElementById('1912.06356v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.06356v1-abstract-full" style="display: none;"> The proposed Beam Dump Facility (BDF) is foreseen to be located at the North Area of the SPS. It is designed to be able to serve both beam dump like and fixed target experiments. The SPS and the new facility would offer unique possibilities to enter a new era of exploration at the intensity frontier. Possible options include searches for very weakly interacting particles predicted by Hidden Sector models, and flavour physics measurements. In the first instance, exploitation of the facility, in beam dump mode, is envisaged to be for the Search for Hidden Particle (SHiP) experiment. Following the first evaluation of the BDF in 2014-2016, CERN management launched a Comprehensive Design Study over three years for the facility. The BDF study team has since executed an in-depth feasibility study of proton delivery to target, the target complex, and the underground experimental area, including prototyping of key sub-systems and evaluations of the radiological aspects and safety. A first iteration of detailed integration and civil engineering studies have been performed in order to produce a realistic schedule and cost. This document gives a detailed overview of the proposed facility together with the results of the studies, and draws up a possible road map for a three-year Technical Design Report phase, followed by a 5 to 6 year construction phase. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.06356v1-abstract-full').style.display = 'none'; document.getElementById('1912.06356v1-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> 13 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">589 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-PBC-REPORT-2019-005; CERN-2020-002 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1909.07094">arXiv:1909.07094</a> <span> [<a href="https://arxiv.org/pdf/1909.07094">pdf</a>, <a href="https://arxiv.org/format/1909.07094">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> </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/PhysRevAccelBeams.22.123001">10.1103/PhysRevAccelBeams.22.123001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Beam impact tests of a prototype target for the Beam Dump Facility at CERN: experimental setup and preliminary analysis of the online results </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sola%2C+E+L">E. Lopez Sola</a>, <a href="/search/physics?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/physics?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Avigni%2C+P">P. Avigni</a>, <a href="/search/physics?searchtype=author&query=Battistin%2C+M">M. Battistin</a>, <a href="/search/physics?searchtype=author&query=Bianchi%2C+L">L. Bianchi</a>, <a href="/search/physics?searchtype=author&query=Burger%2C+S">S. Burger</a>, <a href="/search/physics?searchtype=author&query=Descarrega%2C+J+B">J. Busom Descarrega</a>, <a href="/search/physics?searchtype=author&query=Espadanal%2C+J+C">J. Canhoto Espadanal</a>, <a href="/search/physics?searchtype=author&query=Cano-Pleite%2C+E">E. Cano-Pleite</a>, <a href="/search/physics?searchtype=author&query=Casolino%2C+M">M. Casolino</a>, <a href="/search/physics?searchtype=author&query=Fraser%2C+M+A">M. A. Fraser</a>, <a href="/search/physics?searchtype=author&query=Gilardoni%2C+S">S. Gilardoni</a>, <a href="/search/physics?searchtype=author&query=Girod%2C+S">S. Girod</a>, <a href="/search/physics?searchtype=author&query=Grenard%2C+J">J-L. Grenard</a>, <a href="/search/physics?searchtype=author&query=Grenier%2C+D">D. Grenier</a>, <a href="/search/physics?searchtype=author&query=Guinchard%2C+M">M. Guinchard</a>, <a href="/search/physics?searchtype=author&query=Hessler%2C+C">C. Hessler</a>, <a href="/search/physics?searchtype=author&query=Jacobsson%2C+R">R. Jacobsson</a>, <a href="/search/physics?searchtype=author&query=Lamont%2C+M">M. Lamont</a>, <a href="/search/physics?searchtype=author&query=Rolo%2C+A+O">A. Ortega Rolo</a>, <a href="/search/physics?searchtype=author&query=Pandey%2C+M">M. Pandey</a>, <a href="/search/physics?searchtype=author&query=Perillo-Marcone%2C+A">A. Perillo-Marcone</a>, <a href="/search/physics?searchtype=author&query=Riffaud%2C+B">B. Riffaud</a> , et al. (2 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="1909.07094v2-abstract-short" style="display: inline;"> The Beam Dump Facility (BDF) is a project for a new facility at CERN dedicated to high intensity beam dump and fixed target experiments. Currently in its design phase, the first aim of the facility is to search for Light Dark Matter and Hidden Sector models with the Search for Hidden Particles (SHiP) experiment. At the core of the facility sits a dense target/dump, whose function is to absorb safe… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.07094v2-abstract-full').style.display = 'inline'; document.getElementById('1909.07094v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1909.07094v2-abstract-full" style="display: none;"> The Beam Dump Facility (BDF) is a project for a new facility at CERN dedicated to high intensity beam dump and fixed target experiments. Currently in its design phase, the first aim of the facility is to search for Light Dark Matter and Hidden Sector models with the Search for Hidden Particles (SHiP) experiment. At the core of the facility sits a dense target/dump, whose function is to absorb safely the 400 GeV/c Super Proton Synchrotron (SPS) beam and to maximize the production of charm and beauty mesons. An average power of 300 kW will be deposited on the target, which will be subjected to unprecedented conditions in terms of temperature, structural loads and irradiation. In order to provide a representative validation of the target design, a prototype target has been designed, manufactured and tested under the SPS fixed-target proton beam during 2018, up to an average beam power of 50 kW, corresponding to 350 kJ per pulse. The present contribution details the target prototype design and experimental setup, as well as a first evaluation of the measurements performed during beam irradiation. The analysis of the collected data suggests that a representative reproduction of the operational conditions of the Beam Dump Facility target was achieved during the prototype tests, which will be complemented by a Post Irradiation Examination campaign during 2020. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.07094v2-abstract-full').style.display = 'none'; document.getElementById('1909.07094v2-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 November, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 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">Journal ref:</span> Phys. Rev. Accel. Beams 22, 123001 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.05920">arXiv:1806.05920</a> <span> [<a href="https://arxiv.org/pdf/1806.05920">pdf</a>, <a href="https://arxiv.org/format/1806.05920">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="Accelerator Physics">physics.acc-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/10.1088/1748-0221/13/10/P10011">10.1088/1748-0221/13/10/P10011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Design Development for the Beam Dump Facility Target Complex at CERN </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kershaw%2C+K">K. Kershaw</a>, <a href="/search/physics?searchtype=author&query=Grenard%2C+J+-">J. -L. Grenard</a>, <a href="/search/physics?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Casolino%2C+M">M. Casolino</a>, <a href="/search/physics?searchtype=author&query=Delavalle%2C+S">S. Delavalle</a>, <a href="/search/physics?searchtype=author&query=Hounsome%2C+D">D. Hounsome</a>, <a href="/search/physics?searchtype=author&query=Jacobsson%2C+R">R. Jacobsson</a>, <a href="/search/physics?searchtype=author&query=Lamont%2C+M">M. Lamont</a>, <a href="/search/physics?searchtype=author&query=Sola%2C+E+L">E. Lopez Sola</a>, <a href="/search/physics?searchtype=author&query=Scott%2C+R">R. Scott</a>, <a href="/search/physics?searchtype=author&query=Vlachoudis%2C+V">V. Vlachoudis</a>, <a href="/search/physics?searchtype=author&query=Vincke%2C+H">H. Vincke</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="1806.05920v2-abstract-short" style="display: inline;"> CERN has launched a study phase to evaluate the feasibility of a new high-intensity beam dump facility at the CERN Super Proton Synchrotron accelerator with the primary goal of exploring Hidden Sector models and searching for Light Dark Matter, but which also offers opportunities for other fixed target flavour physics programs such as rare tau lepton decays and tau neutrino studies. The new facili… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.05920v2-abstract-full').style.display = 'inline'; document.getElementById('1806.05920v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.05920v2-abstract-full" style="display: none;"> CERN has launched a study phase to evaluate the feasibility of a new high-intensity beam dump facility at the CERN Super Proton Synchrotron accelerator with the primary goal of exploring Hidden Sector models and searching for Light Dark Matter, but which also offers opportunities for other fixed target flavour physics programs such as rare tau lepton decays and tau neutrino studies. The new facility will require - among other infrastructure - a target complex in which a dense target/dump will be installed, capable of absorbing the entire energy of the beam extracted from the SPS accelerator. In theory, the target/dump could produce very weakly interacting particles, to be investigated by a suite of particle detectors to be located downstream of the target complex. As part of the study, a development design of the target complex has been produced, taking into account the handling and remote handling operations needed through the lifetime of the facility. Two different handling concepts have been studied and both resulting designs are presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.05920v2-abstract-full').style.display = 'none'; document.getElementById('1806.05920v2-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 April, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 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">26 pages, 30 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> K. Kershaw et al 2018 JINST13 P10011 </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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