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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/2407.13919">arXiv:2407.13919</a> <span> [<a href="https://arxiv.org/pdf/2407.13919">pdf</a>, <a href="https://arxiv.org/format/2407.13919">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> </div> <p class="title is-5 mathjax"> A Multi-Messenger Search for Exotic Field Emission with a Global Magnetometer Network </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Khamis%2C+S+S">Sami S. Khamis</a>, <a href="/search/hep-ex?searchtype=author&query=Sulai%2C+I+A">Ibrahim A. Sulai</a>, <a href="/search/hep-ex?searchtype=author&query=Hamilton%2C+P">Paul Hamilton</a>, <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">S. Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Buchler%2C+B+C">B. C. Buchler</a>, <a href="/search/hep-ex?searchtype=author&query=Budker%2C+D">D. Budker</a>, <a href="/search/hep-ex?searchtype=author&query=Figueroa%2C+N+L">N. L. Figueroa</a>, <a href="/search/hep-ex?searchtype=author&query=Folman%2C+R">R. Folman</a>, <a href="/search/hep-ex?searchtype=author&query=Gavil%C3%A1n-Mart%C3%ADn%2C+D">D. Gavil谩n-Mart铆n</a>, <a href="/search/hep-ex?searchtype=author&query=Givon%2C+M">M. Givon</a>, <a href="/search/hep-ex?searchtype=author&query=Gruji%C4%87%2C+Z+D">Z. D. Gruji膰</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+H">H. Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Hedges%2C+M+P">M. P. Hedges</a>, <a href="/search/hep-ex?searchtype=author&query=Kimball%2C+D+F+J">D. F. Jackson Kimball</a>, <a href="/search/hep-ex?searchtype=author&query=Kim%2C+D">D. Kim</a>, <a href="/search/hep-ex?searchtype=author&query=Klinger%2C+E">E. Klinger</a>, <a href="/search/hep-ex?searchtype=author&query=Kornack%2C+T">T. Kornack</a>, <a href="/search/hep-ex?searchtype=author&query=Kryemadhi%2C+A">A. Kryemadhi</a>, <a href="/search/hep-ex?searchtype=author&query=Kukowski%2C+N">N. Kukowski</a>, <a href="/search/hep-ex?searchtype=author&query=Lukasiewicz%2C+G">G. Lukasiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Masia-Roig%2C+H">H. Masia-Roig</a>, <a href="/search/hep-ex?searchtype=author&query=Padniuk%2C+M">M. Padniuk</a>, <a href="/search/hep-ex?searchtype=author&query=Palm%2C+C+A">C. A. Palm</a>, <a href="/search/hep-ex?searchtype=author&query=Park%2C+S+Y">S. Y. Park</a>, <a href="/search/hep-ex?searchtype=author&query=Peng%2C+X">X. Peng</a> , et al. (16 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="2407.13919v1-abstract-short" style="display: inline;"> We present an analysis method to search for exotic low-mass field (ELF) bursts generated during large energy astrophysical events such as supernovae, binary black hole or binary neutron star mergers, and fast radio bursts using the Global Network of Optical Magnetometers for Exotic physics searches (GNOME). In our model, the associated gravitational waves or electromagnetic signals herald the arri… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.13919v1-abstract-full').style.display = 'inline'; document.getElementById('2407.13919v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.13919v1-abstract-full" style="display: none;"> We present an analysis method to search for exotic low-mass field (ELF) bursts generated during large energy astrophysical events such as supernovae, binary black hole or binary neutron star mergers, and fast radio bursts using the Global Network of Optical Magnetometers for Exotic physics searches (GNOME). In our model, the associated gravitational waves or electromagnetic signals herald the arrival of the ELF burst that interacts via coupling to the spin of fermions in the magnetometers. This enables GNOME to serve as a tool for multi-messenger astronomy. The algorithm employs a model-agnostic excess-power method to identify network-wide candidate events to be subjected to a model-dependent generalized likelihood-ratio test to determine their statistical significance. We perform the first search with this technique on GNOME data coincident with the binary black hole merger S200311bg detected by LIGO/Virgo on the 11th of March 2020 and find no significant events. We place the first lab-based limits on combinations of ELF production and coupling parameters. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.13919v1-abstract-full').style.display = 'none'; document.getElementById('2407.13919v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.01785">arXiv:2305.01785</a> <span> [<a href="https://arxiv.org/pdf/2305.01785">pdf</a>, <a href="https://arxiv.org/format/2305.01785">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-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/10.1002/andp.202300083">10.1002/andp.202300083 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> What can a GNOME do? Search targets for the Global Network of Optical Magnetometers for Exotic physics searches </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">S. Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Tumturk%2C+D+A">D. Aybas Tumturk</a>, <a href="/search/hep-ex?searchtype=author&query=Bekker%2C+H">H. Bekker</a>, <a href="/search/hep-ex?searchtype=author&query=Buchler%2C+B+C">B. C. Buchler</a>, <a href="/search/hep-ex?searchtype=author&query=Budker%2C+D">D. Budker</a>, <a href="/search/hep-ex?searchtype=author&query=Cervantes%2C+K">K. Cervantes</a>, <a href="/search/hep-ex?searchtype=author&query=Derevianko%2C+A">A. Derevianko</a>, <a href="/search/hep-ex?searchtype=author&query=Eby%2C+J">J. Eby</a>, <a href="/search/hep-ex?searchtype=author&query=Figueroa%2C+N+L">N. L. Figueroa</a>, <a href="/search/hep-ex?searchtype=author&query=Folman%2C+R">R. Folman</a>, <a href="/search/hep-ex?searchtype=author&query=Martin%2C+D+G">D. Gavil'an Martin</a>, <a href="/search/hep-ex?searchtype=author&query=Givon%2C+M">M. Givon</a>, <a href="/search/hep-ex?searchtype=author&query=Grujic%2C+Z+D">Z. D. Grujic</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+H">H. Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Hamilton%2C+P">P. Hamilton</a>, <a href="/search/hep-ex?searchtype=author&query=Hedges%2C+M+P">M. P. Hedges</a>, <a href="/search/hep-ex?searchtype=author&query=Kimball%2C+D+F+J">D. F. Jackson Kimball</a>, <a href="/search/hep-ex?searchtype=author&query=Khamis%2C+S">S. Khamis</a>, <a href="/search/hep-ex?searchtype=author&query=Kim%2C+D">D. Kim</a>, <a href="/search/hep-ex?searchtype=author&query=Klinger%2C+E">E. Klinger</a>, <a href="/search/hep-ex?searchtype=author&query=Kryemadhi%2C+A">A. Kryemadhi</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+X">X. Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Lukasiewicz%2C+G">G. Lukasiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Masia-Roig%2C+H">H. Masia-Roig</a>, <a href="/search/hep-ex?searchtype=author&query=Padniuk%2C+M">M. Padniuk</a> , et al. (28 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="2305.01785v2-abstract-short" style="display: inline;"> Numerous observations suggest that there exist undiscovered beyond-the-Standard-Model particles and fields. Because of their unknown nature, these exotic particles and fields could interact with Standard Model particles in many different ways and assume a variety of possible configurations. Here we present an overview of the Global Network of Optical Magnetometers for Exotic physics searches (GNOM… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.01785v2-abstract-full').style.display = 'inline'; document.getElementById('2305.01785v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.01785v2-abstract-full" style="display: none;"> Numerous observations suggest that there exist undiscovered beyond-the-Standard-Model particles and fields. Because of their unknown nature, these exotic particles and fields could interact with Standard Model particles in many different ways and assume a variety of possible configurations. Here we present an overview of the Global Network of Optical Magnetometers for Exotic physics searches (GNOME), our ongoing experimental program designed to test a wide range of exotic physics scenarios. The GNOME experiment utilizes a worldwide network of shielded atomic magnetometers (and, more recently, comagnetometers) to search for spatially and temporally correlated signals due to torques on atomic spins from exotic fields of astrophysical origin. We survey the temporal characteristics of a variety of possible signals currently under investigation such as those from topological defect dark matter (axion-like particle domain walls), axion-like particle stars, solitons of complex-valued scalar fields (Q-balls), stochastic fluctuations of bosonic dark matter fields, a solar axion-like particle halo, and bursts of ultralight bosonic fields produced by cataclysmic astrophysical events such as binary black hole mergers. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.01785v2-abstract-full').style.display = 'none'; document.getElementById('2305.01785v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">22 pages, 12 figures, submitted to Annalen der Physik</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Annalen der Physik 2023, 2300083 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2102.13379">arXiv:2102.13379</a> <span> [<a href="https://arxiv.org/pdf/2102.13379">pdf</a>, <a href="https://arxiv.org/format/2102.13379">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-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/10.1038/s41567-021-01393-y">10.1038/s41567-021-01393-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for topological defect dark matter with a global network of optical magnetometers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">Samer Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Buchler%2C+B+C">Ben C. Buchler</a>, <a href="/search/hep-ex?searchtype=author&query=Budker%2C+D">Dmitry Budker</a>, <a href="/search/hep-ex?searchtype=author&query=Dailey%2C+C">Conner Dailey</a>, <a href="/search/hep-ex?searchtype=author&query=Derevianko%2C+A">Andrei Derevianko</a>, <a href="/search/hep-ex?searchtype=author&query=Dumont%2C+V">Vincent Dumont</a>, <a href="/search/hep-ex?searchtype=author&query=Figueroa%2C+N+L">Nataniel L. Figueroa</a>, <a href="/search/hep-ex?searchtype=author&query=Gerhardt%2C+I">Ilja Gerhardt</a>, <a href="/search/hep-ex?searchtype=author&query=Gruji%C4%87%2C+Z+D">Zoran D. Gruji膰</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+H">Hong Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Hao%2C+C">Chuanpeng Hao</a>, <a href="/search/hep-ex?searchtype=author&query=Hamilton%2C+P+S">Paul S. Hamilton</a>, <a href="/search/hep-ex?searchtype=author&query=Hedges%2C+M">Morgan Hedges</a>, <a href="/search/hep-ex?searchtype=author&query=Kimball%2C+D+F+J">Derek F. Jackson Kimball</a>, <a href="/search/hep-ex?searchtype=author&query=Kim%2C+D">Dongok Kim</a>, <a href="/search/hep-ex?searchtype=author&query=Khamis%2C+S">Sami Khamis</a>, <a href="/search/hep-ex?searchtype=author&query=Kornack%2C+T">Thomas Kornack</a>, <a href="/search/hep-ex?searchtype=author&query=Lebedev%2C+V">Victor Lebedev</a>, <a href="/search/hep-ex?searchtype=author&query=Lu%2C+Z">Zheng-Tian Lu</a>, <a href="/search/hep-ex?searchtype=author&query=Masia-Roig%2C+H">Hector Masia-Roig</a>, <a href="/search/hep-ex?searchtype=author&query=Monroy%2C+M">Madeline Monroy</a>, <a href="/search/hep-ex?searchtype=author&query=Padniuk%2C+M">Mikhail Padniuk</a>, <a href="/search/hep-ex?searchtype=author&query=Palm%2C+C+A">Christopher A. Palm</a>, <a href="/search/hep-ex?searchtype=author&query=Park%2C+S+Y">Sun Yool Park</a>, <a href="/search/hep-ex?searchtype=author&query=Paul%2C+K+V">Karun V. Paul</a> , et al. (24 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2102.13379v4-abstract-short" style="display: inline;"> Ultralight bosons such as axion-like particles are viable candidates for dark matter. They can form stable, macroscopic field configurations in the form of topological defects that could concentrate the dark matter density into many distinct, compact spatial regions that are small compared to the galaxy but much larger than the Earth. Here, we report the results of a search for transient signals f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.13379v4-abstract-full').style.display = 'inline'; document.getElementById('2102.13379v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2102.13379v4-abstract-full" style="display: none;"> Ultralight bosons such as axion-like particles are viable candidates for dark matter. They can form stable, macroscopic field configurations in the form of topological defects that could concentrate the dark matter density into many distinct, compact spatial regions that are small compared to the galaxy but much larger than the Earth. Here, we report the results of a search for transient signals from axion-like particle domain walls with the Global Network of Optical Magnetometers for Exotic physics searches (GNOME). We search the data, consisting of correlated measurements from optical atomic magnetometers located in laboratories all over the world, for patterns of signals propagating through the network consistent with domain walls. The analysis of data from a continuous month-long operation of the GNOME finds no statistically significant signals, thus placing experimental constraints on such dark matter scenarios. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.13379v4-abstract-full').style.display = 'none'; document.getElementById('2102.13379v4-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 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">25 pages, 6 figures, 2 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Physics 17, 1396-1401 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2101.01241">arXiv:2101.01241</a> <span> [<a href="https://arxiv.org/pdf/2101.01241">pdf</a>, <a href="https://arxiv.org/ps/2101.01241">ps</a>, <a href="https://arxiv.org/format/2101.01241">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Other Condensed Matter">cond-mat.other</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.126.141802">10.1103/PhysRevLett.126.141802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for axion-like dark matter using solid-state nuclear magnetic resonance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Aybas%2C+D">Deniz Aybas</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">Janos Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Blumenthal%2C+E">Emmy Blumenthal</a>, <a href="/search/hep-ex?searchtype=author&query=Gramolin%2C+A+V">Alexander V. Gramolin</a>, <a href="/search/hep-ex?searchtype=author&query=Johnson%2C+D">Dorian Johnson</a>, <a href="/search/hep-ex?searchtype=author&query=Kleyheeg%2C+A">Annalies Kleyheeg</a>, <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">Samer Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Blanchard%2C+J+W">John W. Blanchard</a>, <a href="/search/hep-ex?searchtype=author&query=Centers%2C+G+P">Gary P. Centers</a>, <a href="/search/hep-ex?searchtype=author&query=Garcon%2C+A">Antoine Garcon</a>, <a href="/search/hep-ex?searchtype=author&query=Engler%2C+M">Martin Engler</a>, <a href="/search/hep-ex?searchtype=author&query=Figueroa%2C+N+L">Nataniel L. Figueroa</a>, <a href="/search/hep-ex?searchtype=author&query=Sendra%2C+M+G">Marina Gil Sendra</a>, <a href="/search/hep-ex?searchtype=author&query=Wickenbrock%2C+A">Arne Wickenbrock</a>, <a href="/search/hep-ex?searchtype=author&query=Lawson%2C+M">Matthew Lawson</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+T">Tao Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Wu%2C+T">Teng Wu</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+H">Haosu Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Mani%2C+H">Hamdi Mani</a>, <a href="/search/hep-ex?searchtype=author&query=Mauskopf%2C+P">Philip Mauskopf</a>, <a href="/search/hep-ex?searchtype=author&query=Graham%2C+P+W">Peter W. Graham</a>, <a href="/search/hep-ex?searchtype=author&query=Rajendran%2C+S">Surjeet Rajendran</a>, <a href="/search/hep-ex?searchtype=author&query=Kimball%2C+D+F+J">Derek F. Jackson Kimball</a>, <a href="/search/hep-ex?searchtype=author&query=Budker%2C+D">Dmitry Budker</a>, <a href="/search/hep-ex?searchtype=author&query=Sushkov%2C+A+O">Alexander O. Sushkov</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2101.01241v3-abstract-short" style="display: inline;"> We report the results of an experimental search for ultralight axion-like dark matter in the mass range 162 neV to 166 neV. The detection scheme of our Cosmic Axion Spin Precession Experiment (CASPEr) is based on a precision measurement of $^{207}$Pb solid-state nuclear magnetic resonance in a polarized ferroelectric crystal. Axion-like dark matter can exert an oscillating torque on $^{207}$Pb nuc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.01241v3-abstract-full').style.display = 'inline'; document.getElementById('2101.01241v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2101.01241v3-abstract-full" style="display: none;"> We report the results of an experimental search for ultralight axion-like dark matter in the mass range 162 neV to 166 neV. The detection scheme of our Cosmic Axion Spin Precession Experiment (CASPEr) is based on a precision measurement of $^{207}$Pb solid-state nuclear magnetic resonance in a polarized ferroelectric crystal. Axion-like dark matter can exert an oscillating torque on $^{207}$Pb nuclear spins via the electric-dipole moment coupling $g_d$, or via the gradient coupling $g_{\text{aNN}}$. We calibrated the detector and characterized the excitation spectrum and relaxation parameters of the nuclear spin ensemble with pulsed magnetic resonance measurements in a 4.4 T magnetic field. We swept the magnetic field near this value and searched for axion-like dark matter with Compton frequency within a 1 MHz band centered at 39.65 MHz. Our measurements place the upper bounds $|g_d|<9.5\times10^{-4}\,\text{GeV}^{-2}$ and $|g_{\text{aNN}}|<2.8\times10^{-1}\,\text{GeV}^{-1}$ (95% confidence level) in this frequency range. The constraint on $g_d$ corresponds to an upper bound of $1.0\times 10^{-21}\,\text{e}\cdot\text{cm}$ on the amplitude of oscillations of the neutron electric dipole moment, and $4.3\times 10^{-6}$ on the amplitude of oscillations of CP-violating $胃$ parameter of quantum chromodynamics. Our results demonstrate the feasibility of using solid-state nuclear magnetic resonance to search for axion-like dark matter in the nano-electronvolt mass range. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.01241v3-abstract-full').style.display = 'none'; document.getElementById('2101.01241v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 126, 141802 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2001.11966">arXiv:2001.11966</a> <span> [<a href="https://arxiv.org/pdf/2001.11966">pdf</a>, <a href="https://arxiv.org/format/2001.11966">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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 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.124.081803">10.1103/PhysRevLett.124.081803 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the permanent electric dipole moment of the neutron </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Abel%2C+C">C. Abel</a>, <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">S. Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Ayres%2C+N+J">N. J. Ayres</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+C+A">C. A. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+G">G. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Bison%2C+G">G. Bison</a>, <a href="/search/hep-ex?searchtype=author&query=Bodek%2C+K">K. Bodek</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+V">V. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Burghoff%2C+M">M. Burghoff</a>, <a href="/search/hep-ex?searchtype=author&query=Chanel%2C+E">E. Chanel</a>, <a href="/search/hep-ex?searchtype=author&query=Chowdhuri%2C+Z">Z. Chowdhuri</a>, <a href="/search/hep-ex?searchtype=author&query=Chiu%2C+P+-">P. -J. Chiu</a>, <a href="/search/hep-ex?searchtype=author&query=Clement%2C+B">B. Clement</a>, <a href="/search/hep-ex?searchtype=author&query=Crawford%2C+C+B">C. B. Crawford</a>, <a href="/search/hep-ex?searchtype=author&query=Daum%2C+M">M. Daum</a>, <a href="/search/hep-ex?searchtype=author&query=Emmenegger%2C+S">S. Emmenegger</a>, <a href="/search/hep-ex?searchtype=author&query=Ferraris-Bouchez%2C+L">L. Ferraris-Bouchez</a>, <a href="/search/hep-ex?searchtype=author&query=Fertl%2C+M">M. Fertl</a>, <a href="/search/hep-ex?searchtype=author&query=Flaux%2C+P">P. Flaux</a>, <a href="/search/hep-ex?searchtype=author&query=Franke%2C+B">B. Franke</a>, <a href="/search/hep-ex?searchtype=author&query=Fratangelo%2C+A">A. Fratangelo</a>, <a href="/search/hep-ex?searchtype=author&query=Geltenbort%2C+P">P. Geltenbort</a>, <a href="/search/hep-ex?searchtype=author&query=Green%2C+K">K. Green</a>, <a href="/search/hep-ex?searchtype=author&query=Griffith%2C+W+C">W. C. Griffith</a>, <a href="/search/hep-ex?searchtype=author&query=van+der+Grinten%2C+M">M. van der Grinten</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="2001.11966v1-abstract-short" style="display: inline;"> We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magnetic fields with ultracold neutrons (UCN). Our measurement stands in the long history of EDM experiments probing physics violating time reversal invariance. The salient features of this experiment were the use of a Hg-19… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.11966v1-abstract-full').style.display = 'inline'; document.getElementById('2001.11966v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.11966v1-abstract-full" style="display: none;"> We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magnetic fields with ultracold neutrons (UCN). Our measurement stands in the long history of EDM experiments probing physics violating time reversal invariance. The salient features of this experiment were the use of a Hg-199 co-magnetometer and an array of optically pumped cesium vapor magnetometers to cancel and correct for magnetic field changes. The statistical analysis was performed on blinded datasets by two separate groups while the estimation of systematic effects profited from an unprecedented knowledge of the magnetic field. The measured value of the neutron EDM is $d_{\rm n} = (0.0\pm1.1_{\rm stat}\pm0.2_{\rm sys})\times10^{-26}e\,{\rm cm}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.11966v1-abstract-full').style.display = 'none'; document.getElementById('2001.11966v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">5 pages, 4 figures, submitted to PRL on 18.12.2019</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 124, 081803 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.04631">arXiv:1912.04631</a> <span> [<a href="https://arxiv.org/pdf/1912.04631">pdf</a>, <a href="https://arxiv.org/format/1912.04631">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevA.101.053419">10.1103/PhysRevA.101.053419 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Optically Pumped Cs Magnetometers Enabling a High-Sensitivity Search for the Neutron Electric Dipole Moment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Abel%2C+C">C. Abel</a>, <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">S. Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Ayres%2C+N+J">N. J. Ayres</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+G">G. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Bison%2C+G">G. Bison</a>, <a href="/search/hep-ex?searchtype=author&query=Bodek%2C+K">K. Bodek</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+V">V. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Chanel%2C+E">E. Chanel</a>, <a href="/search/hep-ex?searchtype=author&query=Chiu%2C+P+-">P. -J. Chiu</a>, <a href="/search/hep-ex?searchtype=author&query=Crawford%2C+C+B">C. B. Crawford</a>, <a href="/search/hep-ex?searchtype=author&query=Chowdhuri%2C+Z">Z. Chowdhuri</a>, <a href="/search/hep-ex?searchtype=author&query=Daum%2C+M">M. Daum</a>, <a href="/search/hep-ex?searchtype=author&query=Emmenegger%2C+S">S. Emmenegger</a>, <a href="/search/hep-ex?searchtype=author&query=Ferraris-Bouchez%2C+L">L. Ferraris-Bouchez</a>, <a href="/search/hep-ex?searchtype=author&query=Fertl%2C+M">M. Fertl</a>, <a href="/search/hep-ex?searchtype=author&query=Franke%2C+B">B. Franke</a>, <a href="/search/hep-ex?searchtype=author&query=Griffith%2C+W+C">W. C. Griffith</a>, <a href="/search/hep-ex?searchtype=author&query=Gruji%C4%87%2C+Z+D">Z. D. Gruji膰</a>, <a href="/search/hep-ex?searchtype=author&query=Hayen%2C+L">L. Hayen</a>, <a href="/search/hep-ex?searchtype=author&query=H%C3%A9laine%2C+V">V. H茅laine</a>, <a href="/search/hep-ex?searchtype=author&query=Hild%2C+N">N. Hild</a>, <a href="/search/hep-ex?searchtype=author&query=Kasprzak%2C+M">M. Kasprzak</a>, <a href="/search/hep-ex?searchtype=author&query=Kermaidic%2C+Y">Y. Kermaidic</a>, <a href="/search/hep-ex?searchtype=author&query=Kirch%2C+K">K. Kirch</a>, <a href="/search/hep-ex?searchtype=author&query=Knowles%2C+P">P. Knowles</a> , et al. (35 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="1912.04631v3-abstract-short" style="display: inline;"> An array of sixteen laser-pumped scalar Cs magnetometers was part of the neutron electric dipole moment (nEDM) experiment taking data at the Paul Scherrer Institute in 2015 and 2016. It was deployed to measure the gradients of the experiment's magnetic field and to monitor their temporal evolution. The originality of the array lies in its compact design, in which a single near-infrared diode laser… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.04631v3-abstract-full').style.display = 'inline'; document.getElementById('1912.04631v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.04631v3-abstract-full" style="display: none;"> An array of sixteen laser-pumped scalar Cs magnetometers was part of the neutron electric dipole moment (nEDM) experiment taking data at the Paul Scherrer Institute in 2015 and 2016. It was deployed to measure the gradients of the experiment's magnetic field and to monitor their temporal evolution. The originality of the array lies in its compact design, in which a single near-infrared diode laser drives all magnetometers that are located in a high-vacuum chamber, with a selection of the sensors mounted on a high-voltage electrode. We describe details of the Cs sensors' construction and modes of operation, emphasizing the accuracy and sensitivity of the magnetic field readout. We present two applications of the magnetometer array directly beneficial to the nEDM experiment: (i) the implementation of a strategy to correct for the drift of the vertical magnetic field gradient and (ii) a procedure to homogenize the magnetic field. The first reduces the uncertainty of the new nEDM result. The second enables transverse neutron spin relaxation times exceeding 1500 s, improving the statistical sensitivity of the nEDM experiment by about 35% and effectively increasing the rate of nEDM data taking by a factor of 1.8. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.04631v3-abstract-full').style.display = 'none'; document.getElementById('1912.04631v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 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">Journal ref:</span> Phys. Rev. A 101, 053419 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.08999">arXiv:1711.08999</a> <span> [<a href="https://arxiv.org/pdf/1711.08999">pdf</a>, <a href="https://arxiv.org/format/1711.08999">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> <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"> Overview of the Cosmic Axion Spin Precession Experiment (CASPEr) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Kimball%2C+D+F+J">D. F. Jackson Kimball</a>, <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">S. Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Aybas%2C+D">D. Aybas</a>, <a href="/search/hep-ex?searchtype=author&query=Blanchard%2C+J+W">J. W. Blanchard</a>, <a href="/search/hep-ex?searchtype=author&query=Budker%2C+D">D. Budker</a>, <a href="/search/hep-ex?searchtype=author&query=Centers%2C+G">G. Centers</a>, <a href="/search/hep-ex?searchtype=author&query=Engler%2C+M">M. Engler</a>, <a href="/search/hep-ex?searchtype=author&query=Figueroa%2C+N+L">N. L. Figueroa</a>, <a href="/search/hep-ex?searchtype=author&query=Garcon%2C+A">A. Garcon</a>, <a href="/search/hep-ex?searchtype=author&query=Graham%2C+P+W">P. W. Graham</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+H">H. Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Rajendran%2C+S">S. Rajendran</a>, <a href="/search/hep-ex?searchtype=author&query=Sendra%2C+M+G">M. G. Sendra</a>, <a href="/search/hep-ex?searchtype=author&query=Sushkov%2C+A+O">A. O. Sushkov</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+T">T. Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Wickenbrock%2C+A">A. Wickenbrock</a>, <a href="/search/hep-ex?searchtype=author&query=Wilzewski%2C+A">A. Wilzewski</a>, <a href="/search/hep-ex?searchtype=author&query=Wu%2C+T">T. Wu</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="1711.08999v3-abstract-short" style="display: inline;"> An overview of our experimental program to search for axion and axion-like-particle (ALP) dark matter using nuclear magnetic resonance (NMR) techniques is presented. An oscillating axion field can exert a time-varying torque on nuclear spins either directly or via generation of an oscillating nuclear electric dipole moment (EDM). Magnetic resonance techniques can be used to detect such an effect.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.08999v3-abstract-full').style.display = 'inline'; document.getElementById('1711.08999v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.08999v3-abstract-full" style="display: none;"> An overview of our experimental program to search for axion and axion-like-particle (ALP) dark matter using nuclear magnetic resonance (NMR) techniques is presented. An oscillating axion field can exert a time-varying torque on nuclear spins either directly or via generation of an oscillating nuclear electric dipole moment (EDM). Magnetic resonance techniques can be used to detect such an effect. The first-stage experiments explore many decades of ALP parameter space beyond the current astrophysical and laboratory bounds. It is anticipated that future versions of the experiments will be sensitive to the axions associated with quantum chromodynamics (QCD) having masses $\lesssim 10^{-9}~{\rm eV}/c^2$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.08999v3-abstract-full').style.display = 'none'; document.getElementById('1711.08999v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 October, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 4 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/1509.04411">arXiv:1509.04411</a> <span> [<a href="https://arxiv.org/pdf/1509.04411">pdf</a>, <a href="https://arxiv.org/format/1509.04411">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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/PhysRevD.92.092003">10.1103/PhysRevD.92.092003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A Revised Experimental Upper Limit on the Electric Dipole Moment of the Neutron </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Pendlebury%2C+J+M">J. M. Pendlebury</a>, <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">S. Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Ayres%2C+N+J">N. J. Ayres</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+C+A">C. A. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+G">G. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Bison%2C+G">G. Bison</a>, <a href="/search/hep-ex?searchtype=author&query=Bodek%2C+K">K. Bodek</a>, <a href="/search/hep-ex?searchtype=author&query=Burghoff%2C+M">M. Burghoff</a>, <a href="/search/hep-ex?searchtype=author&query=Geltenbort%2C+P">P. Geltenbort</a>, <a href="/search/hep-ex?searchtype=author&query=Green%2C+K">K. Green</a>, <a href="/search/hep-ex?searchtype=author&query=Griffith%2C+W+C">W. C. Griffith</a>, <a href="/search/hep-ex?searchtype=author&query=van+der+Grinten%2C+M">M. van der Grinten</a>, <a href="/search/hep-ex?searchtype=author&query=Grujic%2C+Z+D">Z. D. Grujic</a>, <a href="/search/hep-ex?searchtype=author&query=Harris%2C+P+G">P. G. Harris</a>, <a href="/search/hep-ex?searchtype=author&query=Helaine%2C+V">V. Helaine</a>, <a href="/search/hep-ex?searchtype=author&query=Iaydjiev%2C+P">P. Iaydjiev</a>, <a href="/search/hep-ex?searchtype=author&query=Ivanov%2C+S+N">S. N. Ivanov</a>, <a href="/search/hep-ex?searchtype=author&query=Kasprzak%2C+M">M. Kasprzak</a>, <a href="/search/hep-ex?searchtype=author&query=Kermaidic%2C+Y">Y. Kermaidic</a>, <a href="/search/hep-ex?searchtype=author&query=Kirch%2C+K">K. Kirch</a>, <a href="/search/hep-ex?searchtype=author&query=Koch%2C+H+-">H. -C. Koch</a>, <a href="/search/hep-ex?searchtype=author&query=Komposch%2C+S">S. Komposch</a>, <a href="/search/hep-ex?searchtype=author&query=Kozela%2C+A">A. Kozela</a>, <a href="/search/hep-ex?searchtype=author&query=Krempel%2C+J">J. Krempel</a>, <a href="/search/hep-ex?searchtype=author&query=Lauss%2C+B">B. Lauss</a> , et al. (25 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="1509.04411v3-abstract-short" style="display: inline;"> We present for the first time a detailed and comprehensive analysis of the experimental results that set the current world sensitivity limit on the magnitude of the electric dipole moment (EDM) of the neutron. We have extended and enhanced our earlier analysis to include recent developments in the understanding of the effects of gravity in depolarizing ultracold neutrons (UCN); an improved calcula… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.04411v3-abstract-full').style.display = 'inline'; document.getElementById('1509.04411v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.04411v3-abstract-full" style="display: none;"> We present for the first time a detailed and comprehensive analysis of the experimental results that set the current world sensitivity limit on the magnitude of the electric dipole moment (EDM) of the neutron. We have extended and enhanced our earlier analysis to include recent developments in the understanding of the effects of gravity in depolarizing ultracold neutrons (UCN); an improved calculation of the spectrum of the neutrons; and conservative estimates of other possible systematic errors, which are also shown to be consistent with more recent measurements undertaken with the apparatus. We obtain a net result of $d_\mathrm{n} = -0.21 \pm 1.82 \times10^{-26}$ $e$cm, which may be interpreted as a slightly revised upper limit on the magnitude of the EDM of $3.0 \times10^{-26}$ $e$cm (90% CL) or $ 3.6 \times10^{-26}$ $e$cm (95% CL). This paper is dedicated by the remaining authors to the memory of Prof. J. Michael Pendlebury. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.04411v3-abstract-full').style.display = 'none'; document.getElementById('1509.04411v3-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 October, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">23 pages, 19 figures. Authorship list changed to put J.M. Pendlebury first. Other very minor edits</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 92, 092003 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1506.06563">arXiv:1506.06563</a> <span> [<a href="https://arxiv.org/pdf/1506.06563">pdf</a>, <a href="https://arxiv.org/format/1506.06563">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.92.052008">10.1103/PhysRevD.92.052008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Gravitational Depolarization of Ultracold Neutrons: Comparison with Data </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">S. Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Ayres%2C+N+J">N. J. Ayres</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+C+A">C. A. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+G">G. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Bison%2C+G">G. Bison</a>, <a href="/search/hep-ex?searchtype=author&query=Bodek%2C+K">K. Bodek</a>, <a href="/search/hep-ex?searchtype=author&query=Fertl%2C+M">M. Fertl</a>, <a href="/search/hep-ex?searchtype=author&query=Franke%2C+B">B. Franke</a>, <a href="/search/hep-ex?searchtype=author&query=Geltenbort%2C+P">P. Geltenbort</a>, <a href="/search/hep-ex?searchtype=author&query=Green%2C+K">K. Green</a>, <a href="/search/hep-ex?searchtype=author&query=Griffith%2C+W+C">W. C. Griffith</a>, <a href="/search/hep-ex?searchtype=author&query=van+der+Grinten%2C+M">M. van der Grinten</a>, <a href="/search/hep-ex?searchtype=author&query=Grujic%2C+Z+D">Z. D. Grujic</a>, <a href="/search/hep-ex?searchtype=author&query=Harris%2C+P+G">P. G. Harris</a>, <a href="/search/hep-ex?searchtype=author&query=Heil%2C+W">W. Heil</a>, <a href="/search/hep-ex?searchtype=author&query=Helaine%2C+V">V. Helaine</a>, <a href="/search/hep-ex?searchtype=author&query=Iaydjiev%2C+P">P. Iaydjiev</a>, <a href="/search/hep-ex?searchtype=author&query=Ivanov%2C+S+N">S. N. Ivanov</a>, <a href="/search/hep-ex?searchtype=author&query=Kasprzak%2C+M">M. Kasprzak</a>, <a href="/search/hep-ex?searchtype=author&query=Kermaidic%2C+Y">Y. Kermaidic</a>, <a href="/search/hep-ex?searchtype=author&query=Kirch%2C+K">K. Kirch</a>, <a href="/search/hep-ex?searchtype=author&query=Koch%2C+H+-">H. -C. Koch</a>, <a href="/search/hep-ex?searchtype=author&query=Komposch%2C+S">S. Komposch</a>, <a href="/search/hep-ex?searchtype=author&query=Kozela%2C+A">A. Kozela</a>, <a href="/search/hep-ex?searchtype=author&query=Krempel%2C+J">J. Krempel</a> , et al. (25 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="1506.06563v3-abstract-short" style="display: inline;"> We compare the expected effects of so-called gravitationally enhanced depolarization of ultracold neutrons to measurements carried out in a spin-precession chamber exposed to a variety of vertical magnetic-field gradients. In particular, we have investigated the dependence upon these field gradients of spin depolarization rates and also of shifts in the measured neutron Larmor precession frequency… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.06563v3-abstract-full').style.display = 'inline'; document.getElementById('1506.06563v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1506.06563v3-abstract-full" style="display: none;"> We compare the expected effects of so-called gravitationally enhanced depolarization of ultracold neutrons to measurements carried out in a spin-precession chamber exposed to a variety of vertical magnetic-field gradients. In particular, we have investigated the dependence upon these field gradients of spin depolarization rates and also of shifts in the measured neutron Larmor precession frequency. We find excellent qualitative agreement, with gravitationally enhanced depolarization accounting for several previously unexplained features in the data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.06563v3-abstract-full').style.display = 'none'; document.getElementById('1506.06563v3-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> 26 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 June, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 6 figures. Updated: section added about implications for current nEDM limit</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 92, 052008 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1412.3679">arXiv:1412.3679</a> <span> [<a href="https://arxiv.org/pdf/1412.3679">pdf</a>, <a href="https://arxiv.org/ps/1412.3679">ps</a>, <a href="https://arxiv.org/format/1412.3679">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2015.04.024">10.1016/j.physletb.2015.04.024 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Constraining interactions mediated by axion-like particles with ultracold neutrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Afach%2C+S">S. Afach</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+G">G. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Bison%2C+G">G. Bison</a>, <a href="/search/hep-ex?searchtype=author&query=Bodek%2C+K">K. Bodek</a>, <a href="/search/hep-ex?searchtype=author&query=Burghoff%2C+M">M. Burghoff</a>, <a href="/search/hep-ex?searchtype=author&query=Daum%2C+M">M. Daum</a>, <a href="/search/hep-ex?searchtype=author&query=Fertl%2C+M">M. Fertl</a>, <a href="/search/hep-ex?searchtype=author&query=Franke%2C+B">B. Franke</a>, <a href="/search/hep-ex?searchtype=author&query=Gruji%C4%87%2C+Z+D">Z. D. Gruji膰</a>, <a href="/search/hep-ex?searchtype=author&query=H%C3%A9laine%2C+V">V. H茅laine</a>, <a href="/search/hep-ex?searchtype=author&query=Kasprzak%2C+M">M. Kasprzak</a>, <a href="/search/hep-ex?searchtype=author&query=Kerma%C3%AFdic%2C+Y">Y. Kerma茂dic</a>, <a href="/search/hep-ex?searchtype=author&query=Kirch%2C+K">K. Kirch</a>, <a href="/search/hep-ex?searchtype=author&query=Knowles%2C+P">P. Knowles</a>, <a href="/search/hep-ex?searchtype=author&query=Koch%2C+H+-">H. -C. Koch</a>, <a href="/search/hep-ex?searchtype=author&query=Komposch%2C+S">S. Komposch</a>, <a href="/search/hep-ex?searchtype=author&query=Kozela%2C+A">A. Kozela</a>, <a href="/search/hep-ex?searchtype=author&query=Krempel%2C+J">J. Krempel</a>, <a href="/search/hep-ex?searchtype=author&query=Lauss%2C+B">B. Lauss</a>, <a href="/search/hep-ex?searchtype=author&query=Lefort%2C+T">T. Lefort</a>, <a href="/search/hep-ex?searchtype=author&query=Lemi%C3%A8re%2C+Y">Y. Lemi猫re</a>, <a href="/search/hep-ex?searchtype=author&query=Mtchedlishvili%2C+A">A. Mtchedlishvili</a>, <a href="/search/hep-ex?searchtype=author&query=Naviliat-Cuncic%2C+O">O. Naviliat-Cuncic</a>, <a href="/search/hep-ex?searchtype=author&query=Piegsa%2C+F+M">F. M. Piegsa</a>, <a href="/search/hep-ex?searchtype=author&query=Pignol%2C+G">G. Pignol</a> , et al. (13 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="1412.3679v1-abstract-short" style="display: inline;"> We report a new limit on a possible short range spin-dependent interaction from the precise measurement of the ratio of Larmor precession frequencies of stored ultracold neutrons and $^{199}$Hg atoms confined in the same volume. The measurement was performed in a $\sim$1$渭$ T vertical magnetic holding field with the apparatus searching for a permanent electric dipole moment of the neutron at the P… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1412.3679v1-abstract-full').style.display = 'inline'; document.getElementById('1412.3679v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1412.3679v1-abstract-full" style="display: none;"> We report a new limit on a possible short range spin-dependent interaction from the precise measurement of the ratio of Larmor precession frequencies of stored ultracold neutrons and $^{199}$Hg atoms confined in the same volume. The measurement was performed in a $\sim$1$渭$ T vertical magnetic holding field with the apparatus searching for a permanent electric dipole moment of the neutron at the Paul Scherrer Institute. A possible coupling between freely precessing polarized neutron spins and unpolarized nucleons of the wall material can be investigated by searching for a tiny change of the precession frequencies of neutron and mercury spins. Such a frequency change can be interpreted as a consequence of a short range spin-dependent interaction that could possibly be mediated by axions or axion-like particles. The interaction strength is proportional to the CP violating product of scalar and pseudoscalar coupling constants $g_Sg_P$. Our result confirms limits from complementary experiments with spin-polarized nuclei in a model-independent way. Limits from other neutron experiments are improved by up to two orders of magnitude in the interaction range of $10^{-6}<位<10^{-4}$ m. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1412.3679v1-abstract-full').style.display = 'none'; document.getElementById('1412.3679v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 December, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2014. </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 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