Search | arXiv e-print repository

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"/> <meta name="viewport" content="width=device-width, initial-scale=1"/>  <link rel="apple-touch-icon" sizes="180x180" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/apple-touch-icon.png"> <link rel="icon" type="image/png" sizes="32x32" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="16x16" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/favicon-16x16.png"> <link rel="manifest" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/site.webmanifest"> <link rel="mask-icon" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/safari-pinned-tab.svg" color="#b31b1b"> <link rel="shortcut icon" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/favicon.ico"> <meta name="msapplication-TileColor" content="#b31b1b"> <meta name="msapplication-config" content="images/icons/browserconfig.xml"> <meta name="theme-color" content="#b31b1b">  <title>Search | arXiv e-print repository</title> <script defer src="https://static.arxiv.org/static/base/1.0.0a5/fontawesome-free-5.11.2-web/js/all.js"></script> <link rel="stylesheet" href="https://static.arxiv.org/static/base/1.0.0a5/css/arxivstyle.css" /> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ messageStyle: "none", extensions: ["tex2jax.js"], jax: ["input/TeX", "output/HTML-CSS"], tex2jax: { inlineMath: [ ['$','$'], ["\$","\$"] ], displayMath: [ ['$$','$$'], ["\\[","\\]"] ], processEscapes: true, ignoreClass: '.*', processClass: 'mathjax.*' }, TeX: { extensions: ["AMSmath.js", "AMSsymbols.js", "noErrors.js"], noErrors: { inlineDelimiters: ["$","$"], multiLine: false, style: { "font-size": "normal", "border": "" } } }, "HTML-CSS": { availableFonts: ["TeX"] } }); </script> <script src='//static.arxiv.org/MathJax-2.7.3/MathJax.js'></script> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/notification.js"></script> <link rel="stylesheet" href="https://static.arxiv.org/static/search/0.5.6/css/bulma-tooltip.min.css" /> <link rel="stylesheet" href="https://static.arxiv.org/static/search/0.5.6/css/search.css" /> <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha256-k2WSCIexGzOj3Euiig+TlR8gA0EmPjuc79OEeY5L45g=" crossorigin="anonymous"></script> <script src="https://static.arxiv.org/static/search/0.5.6/js/fieldset.js"></script> <style> radio#cf-customfield_11400 { display: none; } </style> </head> <body> <header><a href="#main-container" class="is-sr-only">Skip to main content</a>  <div class="attribution level is-marginless" role="banner"> <div class="level-left"> <a class="level-item" href="https://cornell.edu/"><img src="https://static.arxiv.org/static/base/1.0.0a5/images/cornell-reduced-white-SMALL.svg" alt="Cornell University" width="200" aria-label="logo" /></a> </div> <div class="level-right is-marginless"><p class="sponsors level-item is-marginless"><span id="support-ack-url">We gratefully acknowledge support from<br /> the Simons Foundation, <a href="https://info.arxiv.org/about/ourmembers.html">member institutions</a>, and all contributors. <a href="https://info.arxiv.org/about/donate.html">Donate</a></span></p></div> </div>  <div class="identity level is-marginless"> <div class="level-left"> <div class="level-item"> <a class="arxiv" href="https://arxiv.org/" aria-label="arxiv-logo"> <img src="https://static.arxiv.org/static/base/1.0.0a5/images/arxiv-logo-one-color-white.svg" aria-label="logo" alt="arxiv logo" width="85" style="width:85px;"/> </a> </div> </div> <div class="search-block level-right"> <form class="level-item mini-search" method="GET" action="https://arxiv.org/search"> <div class="field has-addons"> <div class="control"> <input class="input is-small" type="text" name="query" placeholder="Search..." aria-label="Search term or terms" /> <p class="help"><a href="https://info.arxiv.org/help">Help</a> | <a href="https://arxiv.org/search/advanced">Advanced Search</a></p> </div> <div class="control"> <div class="select is-small"> <select name="searchtype" aria-label="Field to search"> <option value="all" selected="selected">All fields</option> <option value="title">Title</option> <option value="author">Author</option> <option value="abstract">Abstract</option> <option value="comments">Comments</option> <option value="journal_ref">Journal reference</option> <option value="acm_class">ACM classification</option> <option value="msc_class">MSC classification</option> <option value="report_num">Report number</option> <option value="paper_id">arXiv identifier</option> <option value="doi">DOI</option> <option value="orcid">ORCID</option> <option value="author_id">arXiv author ID</option> <option value="help">Help pages</option> <option value="full_text">Full text</option> </select> </div> </div> <input type="hidden" name="source" value="header"> <button class="button is-small is-cul-darker">Search</button> </div> </form> </div> </div>  <div class="container"> <div class="user-tools is-size-7 has-text-right has-text-weight-bold" role="navigation" aria-label="User menu"> <a href="https://arxiv.org/login">Login</a> </div> </div> </header> <main class="container" id="main-container"> <div class="level is-marginless"> <div class="level-left"> <h1 class="title is-clearfix"> Showing 1–26 of 26 results for author: <span class="mathjax">Gatti, C</span> </h1> </div> <div class="level-right is-hidden-mobile">  <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> <div class="content"> <form method="GET" action="/search/physics" aria-role="search"> Searching in archive <strong>physics</strong>. <a href="/search/?searchtype=author&query=Gatti%2C+C">Search in all archives.</a> <div class="field has-addons-tablet"> <div class="control is-expanded"> <label for="query" class="hidden-label">Search term or terms</label> <input class="input is-medium" id="query" name="query" placeholder="Search term..." type="text" value="Gatti, C"> </div> <div class="select control is-medium"> <label class="is-hidden" for="searchtype">Field</label> <select class="is-medium" id="searchtype" name="searchtype"><option value="all">All fields</option><option value="title">Title</option><option selected value="author">Author(s)</option><option value="abstract">Abstract</option><option value="comments">Comments</option><option value="journal_ref">Journal reference</option><option value="acm_class">ACM classification</option><option value="msc_class">MSC classification</option><option value="report_num">Report number</option><option value="paper_id">arXiv identifier</option><option value="doi">DOI</option><option value="orcid">ORCID</option><option value="license">License (URI)</option><option value="author_id">arXiv author ID</option><option value="help">Help pages</option><option value="full_text">Full text</option></select> </div> <div class="control"> <button class="button is-link is-medium">Search</button> </div> </div> <div class="field"> <div class="control is-size-7"> <label class="radio"> <input checked id="abstracts-0" name="abstracts" type="radio" value="show"> Show abstracts </label> <label class="radio"> <input id="abstracts-1" name="abstracts" type="radio" value="hide"> Hide abstracts </label> </div> </div> <div class="is-clearfix" style="height: 2.5em"> <div class="is-pulled-right"> <a href="/search/advanced?terms-0-term=Gatti%2C+C&terms-0-field=author&size=50&order=-announced_date_first">Advanced Search</a> </div> </div> <input type="hidden" name="order" value="-announced_date_first"> <input type="hidden" name="size" value="50"> </form> <div class="level breathe-horizontal"> <div class="level-left"> <form method="GET" action="/search/"> <div style="display: none;"> <select id="searchtype" name="searchtype"><option value="all">All fields</option><option value="title">Title</option><option selected value="author">Author(s)</option><option value="abstract">Abstract</option><option value="comments">Comments</option><option value="journal_ref">Journal reference</option><option value="acm_class">ACM classification</option><option value="msc_class">MSC classification</option><option value="report_num">Report number</option><option value="paper_id">arXiv identifier</option><option value="doi">DOI</option><option value="orcid">ORCID</option><option value="license">License (URI)</option><option value="author_id">arXiv author ID</option><option value="help">Help pages</option><option value="full_text">Full text</option></select> <input id="query" name="query" type="text" value="Gatti, C"> <ul id="abstracts"><li><input checked id="abstracts-0" name="abstracts" type="radio" value="show"> <label for="abstracts-0">Show abstracts</label></li><li><input id="abstracts-1" name="abstracts" type="radio" value="hide"> <label for="abstracts-1">Hide abstracts</label></li></ul> </div> <div class="box field is-grouped is-grouped-multiline level-item"> <div class="control"> <span class="select is-small"> <select id="size" name="size"><option value="25">25</option><option selected value="50">50</option><option value="100">100</option><option value="200">200</option></select> </span> <label for="size">results per page</label>. </div> <div class="control"> <label for="order">Sort results by</label> <span class="select is-small"> <select id="order" name="order"><option selected value="-announced_date_first">Announcement date (newest first)</option><option value="announced_date_first">Announcement date (oldest first)</option><option value="-submitted_date">Submission date (newest first)</option><option value="submitted_date">Submission date (oldest first)</option><option value="">Relevance</option></select> </span> </div> <div class="control"> <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/2402.19063">arXiv:2402.19063</a> <span> [<a href="https://arxiv.org/pdf/2402.19063">pdf</a>, <a href="https://arxiv.org/format/2402.19063">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="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.110.022008">10.1103/PhysRevD.110.022008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for Axion dark matter with the QUAX-LNF tunable haloscope </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=D%27Agostino%2C+D">D. D'Agostino</a>, <a href="/search/physics?searchtype=author&query=D%27Elia%2C+A">A. D'Elia</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Di+Vora%2C+R">R. Di Vora</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</a>, <a href="/search/physics?searchtype=author&query=Gardikiotis%2C+A">A. Gardikiotis</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Iannone%2C+G">G. Iannone</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G. Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</a>, <a href="/search/physics?searchtype=author&query=Vidali%2C+G">G. Vidali</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="2402.19063v3-abstract-short" style="display: inline;"> We report the first experimental results obtained with the new haloscope of the QUAX experiment located at Laboratori Nazionali di Frascati of INFN (LNF). The haloscope is composed of a OFHC Cu resonant cavity cooled down to about 30 mK and immersed in a magnetic field of 8 T. The cavity frequency was varied in a 6 MHz range between 8.831496 and 8.83803 GHz. This corresponds to a previously unprob… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.19063v3-abstract-full').style.display = 'inline'; document.getElementById('2402.19063v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.19063v3-abstract-full" style="display: none;"> We report the first experimental results obtained with the new haloscope of the QUAX experiment located at Laboratori Nazionali di Frascati of INFN (LNF). The haloscope is composed of a OFHC Cu resonant cavity cooled down to about 30 mK and immersed in a magnetic field of 8 T. The cavity frequency was varied in a 6 MHz range between 8.831496 and 8.83803 GHz. This corresponds to a previously unprobed mass range between 36.52413 and 36.5511 $渭$eV. We don't observe any excess in the power spectrum and set limits on the axion-photon coupling in this mass range down to $g_{a纬纬} < 0.861 \times 10^{-13}$ GeV$^{-1}$ with the confidence level set at $90\%$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.19063v3-abstract-full').style.display = 'none'; document.getElementById('2402.19063v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">Submitted to Physical Review D (https://journals.aps.org/prd/)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.12295">arXiv:2402.12295</a> <span> [<a href="https://arxiv.org/pdf/2402.12295">pdf</a>, <a href="https://arxiv.org/format/2402.12295">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-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/10.1109/TASC.2024.3350602">10.1109/TASC.2024.3350602 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Development of KI-TWPAs for the DARTWARS project </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ahrens%2C+F">Felix Ahrens</a>, <a href="/search/physics?searchtype=author&query=Ferri%2C+E">Elena Ferri</a>, <a href="/search/physics?searchtype=author&query=Avallone%2C+G">Guerino Avallone</a>, <a href="/search/physics?searchtype=author&query=Barone%2C+C">Carlo Barone</a>, <a href="/search/physics?searchtype=author&query=Borghesi%2C+M">Matteo Borghesi</a>, <a href="/search/physics?searchtype=author&query=Callegaro%2C+L">Luca Callegaro</a>, <a href="/search/physics?searchtype=author&query=Carapella%2C+G">Giovanni Carapella</a>, <a href="/search/physics?searchtype=author&query=Caricato%2C+A+P">Anna Paola Caricato</a>, <a href="/search/physics?searchtype=author&query=Carusotto%2C+I">Iacopo Carusotto</a>, <a href="/search/physics?searchtype=author&query=Cian%2C+A">Alessandro Cian</a>, <a href="/search/physics?searchtype=author&query=D%27Elia%2C+A">Alessandro D'Elia</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">Daniele Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Enrico%2C+E">Emanuele Enrico</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">Paolo Falferi</a>, <a href="/search/physics?searchtype=author&query=Fasolo%2C+L">Luca Fasolo</a>, <a href="/search/physics?searchtype=author&query=Faverzani%2C+M">Marco Faverzani</a>, <a href="/search/physics?searchtype=author&query=Filatrella%2C+G">Giovanni Filatrella</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">Claudio Gatti</a>, <a href="/search/physics?searchtype=author&query=Giachero%2C+A">Andrea Giachero</a>, <a href="/search/physics?searchtype=author&query=Giubertoni%2C+D">Damiano Giubertoni</a>, <a href="/search/physics?searchtype=author&query=Granata%2C+V">Veronica Granata</a>, <a href="/search/physics?searchtype=author&query=Guarcello%2C+C">Claudio Guarcello</a>, <a href="/search/physics?searchtype=author&query=Labranca%2C+D">Danilo Labranca</a>, <a href="/search/physics?searchtype=author&query=Leo%2C+A">Angelo Leo</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">Carlo Ligi</a> , et al. (18 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="2402.12295v1-abstract-short" style="display: inline;"> Noise at the quantum limit over a broad bandwidth is a fundamental requirement for future cryogenic experiments for neutrino mass measurements, dark matter searches and Cosmic Microwave Background (CMB) measurements as well as for fast high-fidelity read-out of superconducting qubits. In the last years, Josephson Parametric Amplifiers (JPA) have demonstrated noise levels close to the quantum limit… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12295v1-abstract-full').style.display = 'inline'; document.getElementById('2402.12295v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.12295v1-abstract-full" style="display: none;"> Noise at the quantum limit over a broad bandwidth is a fundamental requirement for future cryogenic experiments for neutrino mass measurements, dark matter searches and Cosmic Microwave Background (CMB) measurements as well as for fast high-fidelity read-out of superconducting qubits. In the last years, Josephson Parametric Amplifiers (JPA) have demonstrated noise levels close to the quantum limit, but due to their narrow bandwidth, only few detectors or qubits per line can be read out in parallel. An alternative and innovative solution is based on superconducting parametric amplification exploiting the travelling-wave concept. Within the DARTWARS (Detector Array Readout with Travelling Wave AmplifieRS) project, we develop Kinetic Inductance Travelling-Wave Parametric Amplifiers (KI-TWPAs) for low temperature detectors and qubit read-out. KI-TWPAs are typically operated in a threewave mixing (3WM) mode and are characterised by a high gain, a high saturation power, a large amplification bandwidth and nearly quantum limited noise performance. The goal of the DARTWARS project is to optimise the KI-TWPA design, explore new materials, and investigate alternative fabrication processes in order to enhance the overall performance of the amplifier. In this contribution we present the advancements made by the DARTWARS collaboration to produce a working prototype of a KI-TWPA, from the fabrication to the characterisation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12295v1-abstract-full').style.display = 'none'; document.getElementById('2402.12295v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> IEEE Transactions on Applied Superconductivity, vol. 34, no. 3, pp. 1-5, May 2024, Art no. 1700605 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.00351">arXiv:2309.00351</a> <span> [<a href="https://arxiv.org/pdf/2309.00351">pdf</a>, <a href="https://arxiv.org/format/2309.00351">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 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.dark.2023.101370">10.1016/j.dark.2023.101370 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The future search for low-frequency axions and new physics with the FLASH resonant cavity experiment at Frascati National Laboratories </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">David Alesini</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">Danilo Babusci</a>, <a href="/search/physics?searchtype=author&query=Beltrame%2C+P">Paolo Beltrame</a>, <a href="/search/physics?searchtype=author&query=Bossi%2C+F">Fabio Bossi</a>, <a href="/search/physics?searchtype=author&query=Ciambrone%2C+P">Paolo Ciambrone</a>, <a href="/search/physics?searchtype=author&query=D%27Elia%2C+A">Alessandro D'Elia</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">Daniele Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Di+Pirro%2C+G">Giampiero Di Pirro</a>, <a href="/search/physics?searchtype=author&query=D%C3%B6brich%2C+B">Babette D枚brich</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">Paolo Falferi</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">Claudio Gatti</a>, <a href="/search/physics?searchtype=author&query=Giannotti%2C+M">Maurizio Giannotti</a>, <a href="/search/physics?searchtype=author&query=Gianotti%2C+P">Paola Gianotti</a>, <a href="/search/physics?searchtype=author&query=Lamanna%2C+G">Gianluca Lamanna</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">Carlo Ligi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">Giovanni Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Mazzitelli%2C+G">Giovanni Mazzitelli</a>, <a href="/search/physics?searchtype=author&query=Mirizzi%2C+A">Alessandro Mirizzi</a>, <a href="/search/physics?searchtype=author&query=Mueck%2C+M">Michael Mueck</a>, <a href="/search/physics?searchtype=author&query=Nardi%2C+E">Enrico Nardi</a>, <a href="/search/physics?searchtype=author&query=Nguyen%2C+F">Federico Nguyen</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">Alessio Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Rezvani%2C+J">Javad Rezvani</a>, <a href="/search/physics?searchtype=author&query=Teofilo%2C+F+E">Francesco Enrico Teofilo</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">Simone Tocci</a> , et al. (3 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="2309.00351v1-abstract-short" style="display: inline;"> We present a proposal for a new experiment, the FINUDA magnet for Light Axion SearcH (FLASH), a large resonant-cavity haloscope in a high static magnetic field which is planned to probe new physics in the form of dark matter (DM) axions, scalar fields, chameleons, hidden photons, as well as high frequency gravitational waves (GWs). Concerning the QCD axion, FLASH will search for these particles as… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.00351v1-abstract-full').style.display = 'inline'; document.getElementById('2309.00351v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.00351v1-abstract-full" style="display: none;"> We present a proposal for a new experiment, the FINUDA magnet for Light Axion SearcH (FLASH), a large resonant-cavity haloscope in a high static magnetic field which is planned to probe new physics in the form of dark matter (DM) axions, scalar fields, chameleons, hidden photons, as well as high frequency gravitational waves (GWs). Concerning the QCD axion, FLASH will search for these particles as the DM in the mass range (0.49-1.49) ueV, thus filling the mass gap between the ranges covered by other planned searches. A dedicated Microstrip SQUID operating at ultra-cryogenic temperatures will amplify the signal. The frequency range accessible overlaps with the Very High Frequency (VHF) range of the radio wave spectrum and allows for a search in GWs in the frequency range (100-300) MHz. The experiment will make use of the cryogenic plant and magnet of the FINUDA experiment at INFN Frascati National Laboratories near Rome (Italy); the operations needed to restore the functionalities of the apparatus are currently underway. We present the setup of the experiment and the sensitivity forecasts for the detection of axions, scalar fields, chameleons, hidden photons, and GWs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.00351v1-abstract-full').style.display = 'none'; document.getElementById('2309.00351v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CA21106; CA21136 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Dark Univ. 42 (2023) 101370 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.07505">arXiv:2304.07505</a> <span> [<a href="https://arxiv.org/pdf/2304.07505">pdf</a>, <a href="https://arxiv.org/format/2304.07505">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.108.062005">10.1103/PhysRevD.108.062005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for galactic axions with a traveling wave parametric amplifier </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Di+Vora%2C+R">R. Di Vora</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pengo%2C+R">R. Pengo</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Taffarello%2C+L">L. Taffarello</a>, <a href="/search/physics?searchtype=author&query=Cappelli%2C+G">G. Cappelli</a>, <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=Esposito%2C+M">M. Esposito</a>, <a href="/search/physics?searchtype=author&query=Planat%2C+L">L. Planat</a>, <a href="/search/physics?searchtype=author&query=Ranadive%2C+A">A. Ranadive</a>, <a href="/search/physics?searchtype=author&query=Roch%2C+N">N. Roch</a>, <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/physics?searchtype=author&query=D%27Elia%2C+A">A. D'Elia</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G. Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</a>, <a href="/search/physics?searchtype=author&query=D%27Agostino%2C+D">D. D'Agostino</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</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="2304.07505v1-abstract-short" style="display: inline;"> A traveling wave parametric amplifier has been integrated in the haloscope of the QUAX experiment. A search for dark matter axions has been performed with a high Q dielectric cavity immersed in a 8 T magnetic field and read by a detection chain having a system noise temperature of about 2.1 K at the frequency of 10.353 GHz. Scanning has been conducted by varying the cavity frequency using sapphire… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.07505v1-abstract-full').style.display = 'inline'; document.getElementById('2304.07505v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.07505v1-abstract-full" style="display: none;"> A traveling wave parametric amplifier has been integrated in the haloscope of the QUAX experiment. A search for dark matter axions has been performed with a high Q dielectric cavity immersed in a 8 T magnetic field and read by a detection chain having a system noise temperature of about 2.1 K at the frequency of 10.353 GHz. Scanning has been conducted by varying the cavity frequency using sapphire rods immersed into the cavity. At multiple operating frequencies, the sensitivity of the instrument was at the level of viable axion models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.07505v1-abstract-full').style.display = 'none'; document.getElementById('2304.07505v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.07556">arXiv:2302.07556</a> <span> [<a href="https://arxiv.org/pdf/2302.07556">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1109/TASC.2022.3218072">10.1109/TASC.2022.3218072 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Stepping closer to pulsed single microwave photon detectors for axions search </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=D%27Elia%2C+A">A. D'Elia</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/physics?searchtype=author&query=Barone%2C+C">C. Barone</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Buonomo%2C+B">B. Buonomo</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+F">F. Chiarello</a>, <a href="/search/physics?searchtype=author&query=Chikhi%2C+N">N. Chikhi</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Felici%2C+G">G. Felici</a>, <a href="/search/physics?searchtype=author&query=Filatrella%2C+G">G. Filatrella</a>, <a href="/search/physics?searchtype=author&query=Fistul%2C+M">M. Fistul</a>, <a href="/search/physics?searchtype=author&query=Foggetta%2C+L+G">L. G. Foggetta</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Il%27ichev%2C+E">E. Il'ichev</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lisitskiy%2C+M">M. Lisitskiy</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G. Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Mattioli%2C+F">F. Mattioli</a>, <a href="/search/physics?searchtype=author&query=Oelsner%2C+G">G. Oelsner</a>, <a href="/search/physics?searchtype=author&query=Pagano%2C+S">S. Pagano</a>, <a href="/search/physics?searchtype=author&query=Piersanti%2C+L">L. Piersanti</a>, <a href="/search/physics?searchtype=author&query=Ruggiero%2C+B">B. Ruggiero</a>, <a href="/search/physics?searchtype=author&query=Torrioli%2C+G">G. Torrioli</a> , et al. (1 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2302.07556v1-abstract-short" style="display: inline;"> Axions detection requires the ultimate sensitivity down to the single photon limit. In the microwave region this corresponds to energies in the yJ range. This extreme sensitivity has to be combined with an extremely low dark count rate, since the probability of axions conversion into microwave photons is supposed to be very low. To face this complicated task, we followed two promising approaches t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.07556v1-abstract-full').style.display = 'inline'; document.getElementById('2302.07556v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.07556v1-abstract-full" style="display: none;"> Axions detection requires the ultimate sensitivity down to the single photon limit. In the microwave region this corresponds to energies in the yJ range. This extreme sensitivity has to be combined with an extremely low dark count rate, since the probability of axions conversion into microwave photons is supposed to be very low. To face this complicated task, we followed two promising approaches that both rely on the use of superconducting devices based on the Josephson effect. The first one is to use a single Josephson junction (JJ) as a switching detector (i.e. exploiting the superconducting to normal state transition in presence of microwave photons). We designed a device composed of a coplanar waveguide terminated on a current biased Josephson junction. We tested its efficiency to pulsed (pulse duration 10 ns) microwave signals, since this configuration is closer to an actual axions search experiment. We show how our device is able to reach detection capability of the order of 10 photons with frequency 8 GHz. The second approach is based on an intrinsically quantum device formed by two resonators coupled only via a superconducting qubit network (SQN). This approach relies on quantum nondemolition measurements of the resonator photons. We show that injecting RF power into the resonator, the frequency position of the resonant drop in the transmission coefficient (S21) can be modulated up to 4 MHz. We anticipate that, once optimized, both the devices have the potential to reach single photon sensitivity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.07556v1-abstract-full').style.display = 'none'; document.getElementById('2302.07556v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2208.12670">arXiv:2208.12670</a> <span> [<a href="https://arxiv.org/pdf/2208.12670">pdf</a>, <a href="https://arxiv.org/format/2208.12670">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.106.052007">10.1103/PhysRevD.106.052007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for galactic axions with a high-Q dielectric cavity </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=DAgostino%2C+D">D. DAgostino</a>, <a href="/search/physics?searchtype=author&query=D%27Elia%2C+A">A. D'Elia</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Di+Vora%2C+R">R. Di Vora</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Iannone%2C+G">G. Iannone</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G. Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pengo%2C+R">R. Pengo</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Taffarello%2C+L">L. Taffarello</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</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="2208.12670v1-abstract-short" style="display: inline;"> A haloscope of the QUAX--$a纬$ experiment, composed of an high-Q resonant cavity immersed in a 8 T magnet and cooled to $\sim 4.5$~K is operated to search for galactic axion with mass $m_a\simeq42.8~渭\text{eV}$. The design of the cavity with hollow dielectric cylinders concentrically inserted in a OFHC Cu cavity, allowed us to maintain a loaded quality-factor Q $\sim 300000$ during the measurements… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.12670v1-abstract-full').style.display = 'inline'; document.getElementById('2208.12670v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.12670v1-abstract-full" style="display: none;"> A haloscope of the QUAX--$a纬$ experiment, composed of an high-Q resonant cavity immersed in a 8 T magnet and cooled to $\sim 4.5$~K is operated to search for galactic axion with mass $m_a\simeq42.8~渭\text{eV}$. The design of the cavity with hollow dielectric cylinders concentrically inserted in a OFHC Cu cavity, allowed us to maintain a loaded quality-factor Q $\sim 300000$ during the measurements in presence of magnetic field. Through the cavity tuning mechanism it was possible to modulate the resonance frequency of the haloscope in the region $10.35337-10.35345$~GHz and thus acquire different dataset at different resonance frequencies. Acquiring each dataset for about 50 minutes, combining them and correcting for the axion's signal estimation-efficiency we set a limit on the axion-photon coupling $g_{a纬纬}< 0.731\times10^{-13}$ GeV$^{-1}$ with the confidence level set at $90\%$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.12670v1-abstract-full').style.display = 'none'; document.getElementById('2208.12670v1-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, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.09290">arXiv:2207.09290</a> <span> [<a href="https://arxiv.org/pdf/2207.09290">pdf</a>, <a href="https://arxiv.org/format/2207.09290">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2022.167716">10.1016/j.nima.2022.167716 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First design of a superconducting qubit for the QUB-IT experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Labranca%2C+D">Danilo Labranca</a>, <a href="/search/physics?searchtype=author&query=Corti%2C+H+A">Herv猫 Ats猫 Corti</a>, <a href="/search/physics?searchtype=author&query=Banchi%2C+L">Leonardo Banchi</a>, <a href="/search/physics?searchtype=author&query=Cidronali%2C+A">Alessandro Cidronali</a>, <a href="/search/physics?searchtype=author&query=Felicetti%2C+S">Simone Felicetti</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">Claudio Gatti</a>, <a href="/search/physics?searchtype=author&query=Giachero%2C+A">Andrea Giachero</a>, <a href="/search/physics?searchtype=author&query=Nucciotti%2C+A">Angelo Nucciotti</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="2207.09290v3-abstract-short" style="display: inline;"> Quantum sensing is a rapidly growing field of research which is already improving sensitivity in fundamental physics experiments. The ability to control quantum devices to measure physical quantities received a major boost from superconducting qubits and the improved capacity in engineering and fabricating this type of devices. The goal of the QUB-IT project is to realize an itinerant single-photo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.09290v3-abstract-full').style.display = 'inline'; document.getElementById('2207.09290v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.09290v3-abstract-full" style="display: none;"> Quantum sensing is a rapidly growing field of research which is already improving sensitivity in fundamental physics experiments. The ability to control quantum devices to measure physical quantities received a major boost from superconducting qubits and the improved capacity in engineering and fabricating this type of devices. The goal of the QUB-IT project is to realize an itinerant single-photon counter exploiting Quantum Non Demolition (QND) measurements and entangled qubits, in order to surpass current devices in terms of efficiency and low dark-count rates. Such a detector has direct applications in Axion dark-matter experiments (such as QUAX[1]), which require the photon to travel along a transmission line before being measured. In this contribution we present the design and simulation of the first superconducting device consisting of a transmon qubit coupled to a resonator using Qiskit-Metal (IBM). Exploiting the Energy Participation Ratio (EPR) simulation we were able to extract the circuit Hamiltonian parameters, such as resonant frequencies, anharmonicity and qubit-resonator couplings. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.09290v3-abstract-full').style.display = 'none'; document.getElementById('2207.09290v3-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 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.04223">arXiv:2201.04223</a> <span> [<a href="https://arxiv.org/pdf/2201.04223">pdf</a>, <a href="https://arxiv.org/format/2201.04223">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> <p class="title is-5 mathjax"> A high-Q microwave dielectric resonator for axion dark matter haloscopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Di+Vora%2C+R">R. Di Vora</a>, <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=Agostino%2C+D+D">D. D Agostino</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Iannone%2C+G">G. Iannone</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G. Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pengo%2C+R">R. Pengo</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Taffarello%2C+L">L. Taffarello</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</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="2201.04223v1-abstract-short" style="display: inline;"> The frequency band 1-15 GHz provides exciting prospects for resonant axion haloscopes as indicated by cosmological and astrophysical arguments. Among the challenges currently addressed to reach the required sensitivity, the development of high quality factor cavities that tolerate multi-Tesla fields plays a central role. We report a 3D resonator based on a right circular copper cavity with hollo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.04223v1-abstract-full').style.display = 'inline'; document.getElementById('2201.04223v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.04223v1-abstract-full" style="display: none;"> The frequency band 1-15 GHz provides exciting prospects for resonant axion haloscopes as indicated by cosmological and astrophysical arguments. Among the challenges currently addressed to reach the required sensitivity, the development of high quality factor cavities that tolerate multi-Tesla fields plays a central role. We report a 3D resonator based on a right circular copper cavity with hollow cylinders that confine higher order modes around the cylinder axis. Its effective volume at 10.3\,GHz is $3.4 \cdot 10^{-2}$ liters, and under an 8\,T-field we measured an internal quality factor of more than 9 millions. These parameters demonstrate the potential of this unique resonator to probe galactic dark matter axion at remarkable scan rates of 15\,MHz/day when the cavity is readout by a quantum-limited receiver. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.04223v1-abstract-full').style.display = 'none'; document.getElementById('2201.04223v1-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 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.12775">arXiv:2112.12775</a> <span> [<a href="https://arxiv.org/pdf/2112.12775">pdf</a>, <a href="https://arxiv.org/format/2112.12775">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="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</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/10.3390/instruments6010001">10.3390/instruments6010001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Impact of the superconductors properties on the measurement sensitivity of resonant-based axion detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alimenti%2C+A">Andrea Alimenti</a>, <a href="/search/physics?searchtype=author&query=Torokhtii%2C+K">Kostiantyn Torokhtii</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">Daniele Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">Claudio Gatti</a>, <a href="/search/physics?searchtype=author&query=Silva%2C+E">Enrico Silva</a>, <a href="/search/physics?searchtype=author&query=Pompeo%2C+N">Nicola Pompeo</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="2112.12775v1-abstract-short" style="display: inline;"> Axions, hypothetical particles theorized to solve the strong CP-problem, are presently being considered as strong candidates as cold dark matter constituents. The signal power of resonant-based axion detectors, known as haloscopes, is directly proportional to their quality factor $Q$. In this paper, the impact of the use of superconductors in the performances of the haloscopes is studied by evalua… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.12775v1-abstract-full').style.display = 'inline'; document.getElementById('2112.12775v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.12775v1-abstract-full" style="display: none;"> Axions, hypothetical particles theorized to solve the strong CP-problem, are presently being considered as strong candidates as cold dark matter constituents. The signal power of resonant-based axion detectors, known as haloscopes, is directly proportional to their quality factor $Q$. In this paper, the impact of the use of superconductors in the performances of the haloscopes is studied by evaluating the obtainable $Q$. In particular, the surface resistance $R_s$ of NbTi, Nb$_3$Sn, YBa$_2$Cu$_3$O$_{7-未}$ and FeSe$_{0.5}$Te$_{0.5}$ is computed in the frequency, magnetic field and temperature ranges of interest, starting from the measured vortex motion complex resistivity and screening lengths of these materials. From $R_s$ the quality factor $Q$ of a cylindrical haloscope with copper conical bases and superconductive lateral wall, operating with the TM$_{010}$ mode, is evaluated and used to perform a comparison of the performances of the different materials. Both YBa$_2$Cu$_3$O$_{7-未}$ and FeSe$_{0.5}$Te$_{0.5}$ are shown to improve the measurement sensitivity by almost an order of magnitude with respect to a whole Cu cavity, while NbTi is shown to be suitable only at lower frequencies (<10 GHz). Nb$_3$Sn can give an intermediate improvement in the whole spectrum of interest. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.12775v1-abstract-full').style.display = 'none'; document.getElementById('2112.12775v1-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 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">15 pages, 5 figures, submitted to Instruments journal (published by MDPI)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Instruments, 6, (2022), 1 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.01118">arXiv:2107.01118</a> <span> [<a href="https://arxiv.org/pdf/2107.01118">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/1559/1/012020">10.1088/1742-6596/1559/1/012020 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/1559/1/012020">10.1088/1742-6596/1559/1/012020 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Development of a Josephson junction based single photon microwave detector for axion detection experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D Alesini</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">D Babusci</a>, <a href="/search/physics?searchtype=author&query=Barone%2C+C">C Barone</a>, <a href="/search/physics?searchtype=author&query=Buonomo%2C+B">B Buonomo</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M+M">M M Beretta</a>, <a href="/search/physics?searchtype=author&query=Bianchini%2C+L">L Bianchini</a>, <a href="/search/physics?searchtype=author&query=Castellano%2C+G">G Castellano</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+F">F Chiarello</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P Falferi</a>, <a href="/search/physics?searchtype=author&query=Felici%2C+G">G Felici</a>, <a href="/search/physics?searchtype=author&query=Filatrella%2C+G">G Filatrella</a>, <a href="/search/physics?searchtype=author&query=Foggetta%2C+L+G">L G Foggetta</a>, <a href="/search/physics?searchtype=author&query=Gallo%2C+A">A Gallo</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C Gatti</a>, <a href="/search/physics?searchtype=author&query=Giazotto%2C+F">F Giazotto</a>, <a href="/search/physics?searchtype=author&query=Lamanna%2C+G">G Lamanna</a>, <a href="/search/physics?searchtype=author&query=Ligabue%2C+F">F Ligabue</a>, <a href="/search/physics?searchtype=author&query=Ligato%2C+N">N Ligato</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C Ligi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Margesin%2C+B">B Margesin</a>, <a href="/search/physics?searchtype=author&query=Mattioli%2C+F">F Mattioli</a>, <a href="/search/physics?searchtype=author&query=Monticone%2C+E">E Monticone</a>, <a href="/search/physics?searchtype=author&query=Oberto%2C+L">L Oberto</a> , et al. (8 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="2107.01118v1-abstract-short" style="display: inline;"> Josephson junctions, in appropriate configurations, can be excellent candidates for detection of single photons in the microwave frequency band. Such possibility has been recently addressed in the framework of galactic axion detection. Here are reported recent developments in the modelling and simulation of dynamic behaviour of a Josephson junction single microwave photon detector. For a Josephson… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.01118v1-abstract-full').style.display = 'inline'; document.getElementById('2107.01118v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.01118v1-abstract-full" style="display: none;"> Josephson junctions, in appropriate configurations, can be excellent candidates for detection of single photons in the microwave frequency band. Such possibility has been recently addressed in the framework of galactic axion detection. Here are reported recent developments in the modelling and simulation of dynamic behaviour of a Josephson junction single microwave photon detector. For a Josephson junction to be enough sensitive, small critical currents and operating temperatures of the order of ten of mK are necessary. Thermal and quantum tunnelling out of the zero-voltage state can also mask the detection process. Axion detection would require dark count rates in the order of 0.001 Hz. It is, therefore, is of paramount importance to identify proper device fabrication parameters and junction operation point. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.01118v1-abstract-full').style.display = 'none'; document.getElementById('2107.01118v1-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 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">7 pages, 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Phys.: Conf. Ser. 1559 012020 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.00558">arXiv:2107.00558</a> <span> [<a href="https://arxiv.org/pdf/2107.00558">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/s10909-020-02381-x">10.1007/s10909-020-02381-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Status of the SIMP Project: Toward the Single Microwave Photon Detection </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">David Alesini</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">Danilo Babusci</a>, <a href="/search/physics?searchtype=author&query=Barone%2C+C">Carlo Barone</a>, <a href="/search/physics?searchtype=author&query=Buonomo%2C+B">Bruno Buonomo</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M+M">Matteo Mario Beretta</a>, <a href="/search/physics?searchtype=author&query=Bianchini%2C+L">Lorenzo Bianchini</a>, <a href="/search/physics?searchtype=author&query=Castellano%2C+G">Gabriella Castellano</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+F">Fabio Chiarello</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">Daniele Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">Paolo Falferi</a>, <a href="/search/physics?searchtype=author&query=Felici%2C+G">Giulietto Felici</a>, <a href="/search/physics?searchtype=author&query=Filatrella%2C+G">Giovanni Filatrella</a>, <a href="/search/physics?searchtype=author&query=Foggetta%2C+L+G">Luca Gennaro Foggetta</a>, <a href="/search/physics?searchtype=author&query=Gallo%2C+A">Alessandro Gallo</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">Claudio Gatti</a>, <a href="/search/physics?searchtype=author&query=Giazotto%2C+F">Francesco Giazotto</a>, <a href="/search/physics?searchtype=author&query=Lamanna%2C+G">Gianluca Lamanna</a>, <a href="/search/physics?searchtype=author&query=Ligabue%2C+F">Franco Ligabue</a>, <a href="/search/physics?searchtype=author&query=Ligato%2C+N">Nadia Ligato</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">Carlo Ligi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">Giovanni Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Margesin%2C+B">Benno Margesin</a>, <a href="/search/physics?searchtype=author&query=Mattioli%2C+F">Francesco Mattioli</a>, <a href="/search/physics?searchtype=author&query=Monticone%2C+E">Eugenio Monticone</a>, <a href="/search/physics?searchtype=author&query=Oberto%2C+L">Luca Oberto</a> , et al. (8 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="2107.00558v1-abstract-short" style="display: inline;"> The Italian institute for nuclear physics (INFN) has financed the SIMP project (2019-2021) in order to strengthen its skills and technologies in the field of meV detectors with the ultimate aim of developing a single microwave photon detector. This goal will be pursued by improving the sensitivity and the dark count rate of two types of photodetectors: current biased Josephson Junction (JJ) for th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.00558v1-abstract-full').style.display = 'inline'; document.getElementById('2107.00558v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.00558v1-abstract-full" style="display: none;"> The Italian institute for nuclear physics (INFN) has financed the SIMP project (2019-2021) in order to strengthen its skills and technologies in the field of meV detectors with the ultimate aim of developing a single microwave photon detector. This goal will be pursued by improving the sensitivity and the dark count rate of two types of photodetectors: current biased Josephson Junction (JJ) for the frequency range 10-50 GHz and Transition Edge Sensor (TES) for the frequency range 30-100 GHz. Preliminary results on materials and devices characterization are presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.00558v1-abstract-full').style.display = 'none'; document.getElementById('2107.00558v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 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">7 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Low Temperature Physics (2020) 199:348-354 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.09498">arXiv:2012.09498</a> <span> [<a href="https://arxiv.org/pdf/2012.09498">pdf</a>, <a href="https://arxiv.org/format/2012.09498">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.103.102004">10.1103/PhysRevD.103.102004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for invisible axion dark matter of mass m$_a=43~渭$eV with the QUAX--$a纬$ experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=D%27Agostino%2C+D">D. D'Agostino</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Di+Vora%2C+R">R. Di Vora</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Iannone%2C+G">G. Iannone</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G. Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pengo%2C+R">R. Pengo</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Taffarello%2C+L">L. Taffarello</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</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="2012.09498v2-abstract-short" style="display: inline;"> A haloscope of the QUAX--$a纬$ experiment composed of an oxygen-free high thermal conductivity-Cu cavity inside an 8.1 T magnet and cooled to $\sim200$ mK is put in operation for the search of galactic axion with mass $m_a\simeq43~渭\text{eV}$. The power emitted by the resonant cavity is amplified with a Josephson parametric amplifier whose noise fluctuations are at the standard quantum limit. With… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.09498v2-abstract-full').style.display = 'inline'; document.getElementById('2012.09498v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.09498v2-abstract-full" style="display: none;"> A haloscope of the QUAX--$a纬$ experiment composed of an oxygen-free high thermal conductivity-Cu cavity inside an 8.1 T magnet and cooled to $\sim200$ mK is put in operation for the search of galactic axion with mass $m_a\simeq43~渭\text{eV}$. The power emitted by the resonant cavity is amplified with a Josephson parametric amplifier whose noise fluctuations are at the standard quantum limit. With the data collected in about 1 h at the cavity frequency $谓_c=10.40176$ GHz, the experiment reaches the sensitivity necessary for the detection of galactic QCD-axion, setting the $90\%$ confidence level limit to the axion-photon coupling $g_{a纬纬}<0.639\times10^{-13}$ GeV$^{-1}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.09498v2-abstract-full').style.display = 'none'; document.getElementById('2012.09498v2-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 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 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">7 pages, 6 figures. Analysis method changed. The result is almost left unchanged. Consequently, text has been revised in the Analysis section. Added references. Added equations (2), (4), (5)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 103, 102004 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.12698">arXiv:2004.12698</a> <span> [<a href="https://arxiv.org/pdf/2004.12698">pdf</a>, <a href="https://arxiv.org/format/2004.12698">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="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</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/10.1063/5.0011348">10.1063/5.0011348 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A cryogenic magneto-optical device for long wavelength radiation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Rezvani%2C+S+J">S. J. Rezvani</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Tofani%2C+S">S. Tofani</a>, <a href="/search/physics?searchtype=author&query=Darco%2C+A">A. Darco</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lupi%2C+S">S. Lupi</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+M+C">M. Cestelli Guidi</a>, <a href="/search/physics?searchtype=author&query=Marcelli%2C+A">A. Marcelli</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="2004.12698v1-abstract-short" style="display: inline;"> We present here a small-scale liquid Helium (LHe) immersion cryostat with an innovative optical setup suitable to work in long wavelength radiation ranges and under applied magnetic field. The cryostat is a multi stage device with several shielding in addition to several optical stages. The system has been designed with an external liquid Nitrogen boiler to reduce the liquid bubbling. The optical… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.12698v1-abstract-full').style.display = 'inline'; document.getElementById('2004.12698v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.12698v1-abstract-full" style="display: none;"> We present here a small-scale liquid Helium (LHe) immersion cryostat with an innovative optical setup suitable to work in long wavelength radiation ranges and under applied magnetic field. The cryostat is a multi stage device with several shielding in addition to several optical stages. The system has been designed with an external liquid Nitrogen boiler to reduce the liquid bubbling. The optical and mechanical properties of the optical elements were calculated and optimized for the designed configuration while the optical layout has been simulated and optimized among different configurations based on the geometry of the device. The final design has been optimized for low noise radiation measurements of proximity junction arrays under applied magnetic field in the wavelength range $位$=250-2500 $渭$m. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.12698v1-abstract-full').style.display = 'none'; document.getElementById('2004.12698v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.02754">arXiv:2004.02754</a> <span> [<a href="https://arxiv.org/pdf/2004.02754">pdf</a>, <a href="https://arxiv.org/format/2004.02754">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 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.2020.164641">10.1016/j.nima.2020.164641 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Realization of a high quality factor resonator with hollow dielectric cylinders for axion searches </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=Agostino%2C+D+D">D. D' Agostino</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Di+Vora%2C+R">R. Di Vora</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Iannone%2C+G">G. Iannone</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G. Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pengo%2C+R">R. Pengo</a>, <a href="/search/physics?searchtype=author&query=Pira%2C+C">C. Pira</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Taffarello%2C+L">L. Taffarello</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</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="2004.02754v3-abstract-short" style="display: inline;"> The realization and characterization of a high quality factor resonator composed of two hollow-dielectric cylinders with its pseudo-TM$_{030}$ mode resonating at 10.9 GHz frequency is discussed. The quality factor was measured at the temperatures 300 K and 4 K obtaining $\mbox{Q}_{300\mbox{K}}=(150,000\pm 2,000)$ and $\mbox{Q}_{4\mbox{K}}=(720,000\pm 10,000)$respectively, the latter corresponding… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.02754v3-abstract-full').style.display = 'inline'; document.getElementById('2004.02754v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.02754v3-abstract-full" style="display: none;"> The realization and characterization of a high quality factor resonator composed of two hollow-dielectric cylinders with its pseudo-TM$_{030}$ mode resonating at 10.9 GHz frequency is discussed. The quality factor was measured at the temperatures 300 K and 4 K obtaining $\mbox{Q}_{300\mbox{K}}=(150,000\pm 2,000)$ and $\mbox{Q}_{4\mbox{K}}=(720,000\pm 10,000)$respectively, the latter corresponding to a gain of one order of magnitude with respect to a traditional copper cylindrical-cavity with the corresponding TM$_{010}$ mode resonating at the same frequency. The implications to dark-matter axion-searches with cavity experiments are discussed showing that the gain in quality factor is not spoiled by a reduced geometrical coupling $C_{030}$ of the cavity mode to the axion field. This reduction effect is estimated to be at most 20%. Numerical simulations show that frequency tuning of several hundreds MHz is feasible. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.02754v3-abstract-full').style.display = 'none'; document.getElementById('2004.02754v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.01816">arXiv:2002.01816</a> <span> [<a href="https://arxiv.org/pdf/2002.01816">pdf</a>, <a href="https://arxiv.org/format/2002.01816">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/10.1063/5.0003878">10.1063/5.0003878 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High quality factor photonic cavity for dark matter axion searches </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=D%27Agostino%2C+D">D. D'Agostino</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Di+Vora%2C+R">R. Di Vora</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Iannone%2C+G">G. Iannone</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G. Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pengo%2C+R">R. Pengo</a>, <a href="/search/physics?searchtype=author&query=Pira%2C+C">C. Pira</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Taffarello%2C+L">L. Taffarello</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</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="2002.01816v1-abstract-short" style="display: inline;"> Searches for dark matter axion involve the use of microwave resonant cavities operating in a strong magnetic field. Detector sensitivity is directly related to the cavity quality factor, which is limited, however, by the presence of the external magnetic field. In this paper we present a cavity of novel design whose quality factor is not affected by a magnetic field. It is based on a photonic stru… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.01816v1-abstract-full').style.display = 'inline'; document.getElementById('2002.01816v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.01816v1-abstract-full" style="display: none;"> Searches for dark matter axion involve the use of microwave resonant cavities operating in a strong magnetic field. Detector sensitivity is directly related to the cavity quality factor, which is limited, however, by the presence of the external magnetic field. In this paper we present a cavity of novel design whose quality factor is not affected by a magnetic field. It is based on a photonic structure by the use of sapphire rods. The quality factor at cryogenic temperature is in excess of $5 \times 10^5$ for a selected mode. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.01816v1-abstract-full').style.display = 'none'; document.getElementById('2002.01816v1-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 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">6 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Review of Scientific Instruments 91, 094701 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1911.02427">arXiv:1911.02427</a> <span> [<a href="https://arxiv.org/pdf/1911.02427">pdf</a>, <a href="https://arxiv.org/format/1911.02427">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="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="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> KLASH Conceptual Design Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/physics?searchtype=author&query=J.%2C+P+B+S">P. Beltrame S. J.</a>, <a href="/search/physics?searchtype=author&query=Bj%C3%B6rkeroth%2C+F">F. Bj枚rkeroth</a>, <a href="/search/physics?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/physics?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/physics?searchtype=author&query=Monache%2C+G+D">G. Delle Monache</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Gallo%2C+A">A. Gallo</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Ghigo%2C+A">A. Ghigo</a>, <a href="/search/physics?searchtype=author&query=Giannotti%2C+M">M. Giannotti</a>, <a href="/search/physics?searchtype=author&query=Lamanna%2C+G">G. Lamanna</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Maccarrone%2C+G">G. Maccarrone</a>, <a href="/search/physics?searchtype=author&query=Mirizzi%2C+A">A. Mirizzi</a>, <a href="/search/physics?searchtype=author&query=Montanino%2C+D">D. Montanino</a>, <a href="/search/physics?searchtype=author&query=Moricciani%2C+D">D. Moricciani</a>, <a href="/search/physics?searchtype=author&query=Mostacci%2C+A">A. Mostacci</a>, <a href="/search/physics?searchtype=author&query=M%C3%BCck%2C+M">M. M眉ck</a>, <a href="/search/physics?searchtype=author&query=Nardi%2C+E">E. Nardi</a>, <a href="/search/physics?searchtype=author&query=Nguyen%2C+F">F. Nguyen</a>, <a href="/search/physics?searchtype=author&query=Pellegrino%2C+L">L. Pellegrino</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</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="1911.02427v1-abstract-short" style="display: inline;"> The last decade witnessed an increasing interest in axions and axion-like particles with many theoretical works published and many new experimental proposals that started a real race towards their discovery. This paper is the Conceptual Design Report of the KLASH (KLoe magnet for Axion SearcH) experiment at the Laboratori Nazionali di Frascati (LNF). The idea of this experiment has been stimulated… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.02427v1-abstract-full').style.display = 'inline'; document.getElementById('1911.02427v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1911.02427v1-abstract-full" style="display: none;"> The last decade witnessed an increasing interest in axions and axion-like particles with many theoretical works published and many new experimental proposals that started a real race towards their discovery. This paper is the Conceptual Design Report of the KLASH (KLoe magnet for Axion SearcH) experiment at the Laboratori Nazionali di Frascati (LNF). The idea of this experiment has been stimulated by the availability of the large volume superconducting magnet, with a moderate magnetic field of 0.6 T, used in the KLOE detector at the DAFNE collider. The main conclusion we draw from this report is the possibility to build and put in operation at LNF in 2-3 years a large haloscope with the sensitivity to KSVZ axions in the low mass range between 0.2 and 1 $渭$eV, complementary to that of other experiments. Timeline and cost are competitive with respect to other proposals in the same mass region thanks to the availability of most of the infrastructure, in particular the superconducting magnet and the cryogenics plant. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.02427v1-abstract-full').style.display = 'none'; document.getElementById('1911.02427v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> INFN-19-18/LNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1903.06547">arXiv:1903.06547</a> <span> [<a href="https://arxiv.org/pdf/1903.06547">pdf</a>, <a href="https://arxiv.org/format/1903.06547">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/PhysRevD.99.101101">10.1103/PhysRevD.99.101101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Galactic axions search with a superconducting resonant cavity </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=D%27Agostino%2C+D">D. D'Agostino</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Di+Vora%2C+R">R. Di Vora</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Gallo%2C+S">S. Gallo</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Iannone%2C+G">G. Iannone</a>, <a href="/search/physics?searchtype=author&query=Lamanna%2C+G">G. Lamanna</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Mezzena%2C+R">R. Mezzena</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pengo%2C+R">R. Pengo</a>, <a href="/search/physics?searchtype=author&query=Pompeo%2C+N">N. Pompeo</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Silva%2C+E">E. Silva</a>, <a href="/search/physics?searchtype=author&query=Speake%2C+C+C">C. C. Speake</a>, <a href="/search/physics?searchtype=author&query=Taffarello%2C+L">L. Taffarello</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</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="1903.06547v1-abstract-short" style="display: inline;"> To account for the dark matter content in our Universe, post-inflationary scenarios predict for the QCD axion a mass in the range $(10-10^3)\,渭\mbox{eV}$. Searches with haloscope experiments in this mass range require the monitoring of resonant cavity modes with frequency above 5\,GHz, where several experimental limitations occur due to linear amplifiers, small volumes, and low quality factors of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1903.06547v1-abstract-full').style.display = 'inline'; document.getElementById('1903.06547v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1903.06547v1-abstract-full" style="display: none;"> To account for the dark matter content in our Universe, post-inflationary scenarios predict for the QCD axion a mass in the range $(10-10^3)\,渭\mbox{eV}$. Searches with haloscope experiments in this mass range require the monitoring of resonant cavity modes with frequency above 5\,GHz, where several experimental limitations occur due to linear amplifiers, small volumes, and low quality factors of Cu resonant cavities. In this paper we deal with the last issue, presenting the result of a search for galactic axions using a haloscope based on a $36\,\mbox{cm}^3$ NbTi superconducting cavity. The cavity worked at $T=4\,\mbox{K}$ in a 2\,T magnetic field and exhibited a quality factor $Q_0= 4.5\times10^5$ for the TM010 mode at 9\,GHz. With such values of $Q$ the axion signal is significantly increased with respect to copper cavity haloscopes. Operating this setup we set the limit $g_{a纬纬}<1.03\times10^{-12}\,\mbox{GeV}^{-1}$ on the axion photon coupling for a mass of about 37\,$渭$eV. A comprehensive study of the NbTi cavity at different magnetic fields, temperatures, and frequencies is also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1903.06547v1-abstract-full').style.display = 'none'; document.getElementById('1903.06547v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 March, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 99, 101101 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1811.06754">arXiv:1811.06754</a> <span> [<a href="https://arxiv.org/pdf/1811.06754">pdf</a>, <a href="https://arxiv.org/format/1811.06754">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> <p class="title is-5 mathjax"> The Klash Proposal: Status and Perspectives </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Lamanna%2C+G">G. Lamanna</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pellegrino%2C+L">L. Pellegrino</a>, <a href="/search/physics?searchtype=author&query=Rettaroli%2C+A">A. Rettaroli</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Tocci%2C+S">S. Tocci</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="1811.06754v1-abstract-short" style="display: inline;"> Recently some of the authors proposed a search for galactic axions with mass about 0.2~$渭$eV using a large volume resonant cavity, tens of cubic meters, cooled down to 4~K and immersed in a magnetic field of about 0.6~T generated inside the superconducting magnet of the KLOE experiment located at the National Laboratory of Frascati of INFN. This experiment, called KLASH (KLoe magnet for Axion Sear… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.06754v1-abstract-full').style.display = 'inline'; document.getElementById('1811.06754v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1811.06754v1-abstract-full" style="display: none;"> Recently some of the authors proposed a search for galactic axions with mass about 0.2~$渭$eV using a large volume resonant cavity, tens of cubic meters, cooled down to 4~K and immersed in a magnetic field of about 0.6~T generated inside the superconducting magnet of the KLOE experiment located at the National Laboratory of Frascati of INFN. This experiment, called KLASH (KLoe magnet for Axion SearcH), has a potential sensitivity on the axion-to-photon coupling, $g_{a纬纬}$, of about $6\times10^{-17}$ $\mbox{GeV}^{-1}$, reaching the region predicted by KSVZ\cite{KSVZ} and DFSZ\cite{DFSZ} models of QCD axions. We report here the status of the project. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.06754v1-abstract-full').style.display = 'none'; document.getElementById('1811.06754v1-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> 16 November, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">Contributed to the 14th Patras Workshop on Axions, WIMPs and WISPs, DESY in Hamburg, June 18 to 22, 2018</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1808.09752">arXiv:1808.09752</a> <span> [<a href="https://arxiv.org/pdf/1808.09752">pdf</a>, <a href="https://arxiv.org/format/1808.09752">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"> Construction techniques and performances of a full-size prototype Micromegas chamber for the ATLAS muon spectrometer upgrade </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alexopoulos%2C+T">T. Alexopoulos</a>, <a href="/search/physics?searchtype=author&query=Alviggi%2C+M">M. Alviggi</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/physics?searchtype=author&query=Anulli%2C+F">F. Anulli</a>, <a href="/search/physics?searchtype=author&query=Arcangeletti%2C+C">C. Arcangeletti</a>, <a href="/search/physics?searchtype=author&query=Bagnaia%2C+P">P. Bagnaia</a>, <a href="/search/physics?searchtype=author&query=Baroncelli%2C+A">A. Baroncelli</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/physics?searchtype=author&query=Bortfeldt%2C+J">J. Bortfeldt</a>, <a href="/search/physics?searchtype=author&query=Calabr%C3%B2%2C+D">D. Calabr貌</a>, <a href="/search/physics?searchtype=author&query=Canale%2C+V">V. Canale</a>, <a href="/search/physics?searchtype=author&query=Capradossi%2C+G">G. Capradossi</a>, <a href="/search/physics?searchtype=author&query=Carducci%2C+G">G. Carducci</a>, <a href="/search/physics?searchtype=author&query=Caserio%2C+A">A. Caserio</a>, <a href="/search/physics?searchtype=author&query=Cassese%2C+C">C. Cassese</a>, <a href="/search/physics?searchtype=author&query=Cerioni%2C+S">S. Cerioni</a>, <a href="/search/physics?searchtype=author&query=Ciapetti%2C+G">G. Ciapetti</a>, <a href="/search/physics?searchtype=author&query=Amico%2C+V+D">V. D' Amico</a>, <a href="/search/physics?searchtype=author&query=De+Fazio%2C+B">B. De Fazio</a>, <a href="/search/physics?searchtype=author&query=Del+Gaudio%2C+M">M. Del Gaudio</a>, <a href="/search/physics?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/physics?searchtype=author&query=Di+Nardo%2C+R">R. Di Nardo</a>, <a href="/search/physics?searchtype=author&query=Uffizi%2C+D+D">D. D' Uffizi</a>, <a href="/search/physics?searchtype=author&query=Farina%2C+E">E. Farina</a> , et al. (54 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="1808.09752v2-abstract-short" style="display: inline;"> A full-size prototype of a Micromegas precision tracking chamber for the upgrade of the ATLAS detector at the LHC Collider has been built between October 2015 and April 2016. This paper describes in detail the procedures used in constructing the single modules of the chamber in various INFN laboratories and the final assembly at the Laboratori Nazionali di Frascati (LNF). Results of the chamber ex… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.09752v2-abstract-full').style.display = 'inline'; document.getElementById('1808.09752v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1808.09752v2-abstract-full" style="display: none;"> A full-size prototype of a Micromegas precision tracking chamber for the upgrade of the ATLAS detector at the LHC Collider has been built between October 2015 and April 2016. This paper describes in detail the procedures used in constructing the single modules of the chamber in various INFN laboratories and the final assembly at the Laboratori Nazionali di Frascati (LNF). Results of the chamber exposure to the CERN SPS/H8 beam line in June 2016 are also presented. The performances achieved in the construction and the results of the test beam are compared with the requirements, which are imposed by the severe environment during the data-taking of the LHC foreseen for the next years. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.09752v2-abstract-full').style.display = 'none'; document.getElementById('1808.09752v2-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 September, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">Contact editors: G. Mancini, A. Kourkoumeli-Charalampidi</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.00310">arXiv:1806.00310</a> <span> [<a href="https://arxiv.org/pdf/1806.00310">pdf</a>, <a href="https://arxiv.org/format/1806.00310">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/10.1140/epjc/s10052-018-6163-8">10.1140/epjc/s10052-018-6163-8 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Operation of a ferromagnetic axion haloscope at $m_a=58\,渭$eV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Gallo%2C+C+S">C. S. Gallo</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Iannone%2C+G">G. Iannone</a>, <a href="/search/physics?searchtype=author&query=Lamanna%2C+G">G. Lamanna</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pagano%2C+S">S. Pagano</a>, <a href="/search/physics?searchtype=author&query=Pengo%2C+R">R. Pengo</a>, <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Speake%2C+C+C">C. C. Speake</a>, <a href="/search/physics?searchtype=author&query=Taffarello%2C+L">L. Taffarello</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="1806.00310v2-abstract-short" style="display: inline;"> Axions, originally proposed to solve the strong CP problem of quantum chromodynamics, emerge now as leading candidates of WISP dark matter. The rich phenomenology associated to the light and stable QCD axion can be described as an effective magnetic field that can be experimentally investigated. For the QUAX experiment, dark matter axions are searched by means of their resonant interactions with e… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.00310v2-abstract-full').style.display = 'inline'; document.getElementById('1806.00310v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.00310v2-abstract-full" style="display: none;"> Axions, originally proposed to solve the strong CP problem of quantum chromodynamics, emerge now as leading candidates of WISP dark matter. The rich phenomenology associated to the light and stable QCD axion can be described as an effective magnetic field that can be experimentally investigated. For the QUAX experiment, dark matter axions are searched by means of their resonant interactions with electronic spins in a magnetized sample. In principle, axion-induced magnetization changes can be detected by embedding a sample in an rf cavity in a static magnetic field. In this work we describe the operation of a prototype ferromagnetic haloscope, with a sensitivity limited by thermal fluctuations and receiver noise. With a preliminary dark matter search, we are able to set an upper limit on the coupling constant of DFSZ axions to electrons $g_{aee}<4.9\times10^{-10}$ at 95\% C.L. for a mass of $58\,渭$eV (i.\,e. 14\,GHz). This is the first experimental result with an apparatus exploiting the coupling between cosmological axions and electrons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.00310v2-abstract-full').style.display = 'none'; document.getElementById('1806.00310v2-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 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 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">10 pages, 8 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/1802.05552">arXiv:1802.05552</a> <span> [<a href="https://arxiv.org/pdf/1802.05552">pdf</a>, <a href="https://arxiv.org/format/1802.05552">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 - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Searching for galactic axions through magnetized media: QUAX status report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ruoso%2C+G">G. Ruoso</a>, <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Braggio%2C+C">C. Braggio</a>, <a href="/search/physics?searchtype=author&query=Carugno%2C+G">G. Carugno</a>, <a href="/search/physics?searchtype=author&query=Crescini%2C+N">N. Crescini</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">D. Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Falferi%2C+P">P. Falferi</a>, <a href="/search/physics?searchtype=author&query=Gallo%2C+S">S. Gallo</a>, <a href="/search/physics?searchtype=author&query=Gambardella%2C+U">U. Gambardella</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">C. Gatti</a>, <a href="/search/physics?searchtype=author&query=Iannone%2C+G">G. Iannone</a>, <a href="/search/physics?searchtype=author&query=Lamanna%2C+G">G. Lamanna</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">C. Ligi</a>, <a href="/search/physics?searchtype=author&query=Lombardi%2C+A">A. Lombardi</a>, <a href="/search/physics?searchtype=author&query=Mezzena%2C+R">R. Mezzena</a>, <a href="/search/physics?searchtype=author&query=Ortolan%2C+A">A. Ortolan</a>, <a href="/search/physics?searchtype=author&query=Pengo%2C+R">R. Pengo</a>, <a href="/search/physics?searchtype=author&query=Speake%2C+C+C">C. C. Speake</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="1802.05552v1-abstract-short" style="display: inline;"> The current status of the QUAX R\&D program is presented. QUAX is a feasibility study for a detection of axion as dark matter based on the coupling to the electrons. The relevant signal is a magnetization change of a magnetic material placed inside a resonant microwave cavity and polarized with a static magnetic field. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1802.05552v1-abstract-full" style="display: none;"> The current status of the QUAX R\&D program is presented. QUAX is a feasibility study for a detection of axion as dark matter based on the coupling to the electrons. The relevant signal is a magnetization change of a magnetic material placed inside a resonant microwave cavity and polarized with a static magnetic field. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1802.05552v1-abstract-full').style.display = 'none'; document.getElementById('1802.05552v1-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 February, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">Contributed to the 13th Patras Workshop on Axions, WIMPs and WISPs, Thessaloniki, May 15 to 19, 2017</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1707.06010">arXiv:1707.06010</a> <span> [<a href="https://arxiv.org/pdf/1707.06010">pdf</a>, <a href="https://arxiv.org/format/1707.06010">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"> The KLASH Proposal </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">David Alesini</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">Danilo Babusci</a>, <a href="/search/physics?searchtype=author&query=Di+Gioacchino%2C+D">Daniele Di Gioacchino</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">Claudio Gatti</a>, <a href="/search/physics?searchtype=author&query=Lamanna%2C+G">Gianluca Lamanna</a>, <a href="/search/physics?searchtype=author&query=Ligi%2C+C">Carlo Ligi</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="1707.06010v1-abstract-short" style="display: inline;"> We propose a search of galactic axions with mass about 0.2 microeV using a large volume resonant cavity, about 50 m^3, cooled down to 4 K and immersed in a moderate axial magnetic field of about 0.6 T generated inside the superconducting magnet of the KLOE experiment located at the National Laboratory of Frascati of INFN. This experiment, called KLASH (KLoe magnet for Axion SearcH) in the followin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.06010v1-abstract-full').style.display = 'inline'; document.getElementById('1707.06010v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1707.06010v1-abstract-full" style="display: none;"> We propose a search of galactic axions with mass about 0.2 microeV using a large volume resonant cavity, about 50 m^3, cooled down to 4 K and immersed in a moderate axial magnetic field of about 0.6 T generated inside the superconducting magnet of the KLOE experiment located at the National Laboratory of Frascati of INFN. This experiment, called KLASH (KLoe magnet for Axion SearcH) in the following, has a potential sensitivity on the axion-to-photon coupling, g_agg, of about 6x10^-17 GeV-1, reaching the region predicted by KSVZ and DFSZ models of QCD axions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.06010v1-abstract-full').style.display = 'none'; document.getElementById('1707.06010v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 July, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> INFN-17-14/LNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1307.7967">arXiv:1307.7967</a> <span> [<a href="https://arxiv.org/pdf/1307.7967">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and 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="Accelerator Physics">physics.acc-ph</span> </div> </div> <p class="title is-5 mathjax"> IRIDE White Book, An Interdisciplinary Research Infrastructure based on Dual Electron linacs&lasers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/physics?searchtype=author&query=Alessandroni%2C+M">M. Alessandroni</a>, <a href="/search/physics?searchtype=author&query=Anania%2C+M+P">M. P. Anania</a>, <a href="/search/physics?searchtype=author&query=Andreas%2C+S">S. Andreas</a>, <a href="/search/physics?searchtype=author&query=Angelone%2C+M">M. Angelone</a>, <a href="/search/physics?searchtype=author&query=Arcovito%2C+A">A. Arcovito</a>, <a href="/search/physics?searchtype=author&query=Arnesano%2C+F">F. Arnesano</a>, <a href="/search/physics?searchtype=author&query=Artioli%2C+M">M. Artioli</a>, <a href="/search/physics?searchtype=author&query=Avaldi%2C+L">L. Avaldi</a>, <a href="/search/physics?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/physics?searchtype=author&query=Bacci%2C+A">A. Bacci</a>, <a href="/search/physics?searchtype=author&query=Balerna%2C+A">A. Balerna</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bedogni%2C+R">R. Bedogni</a>, <a href="/search/physics?searchtype=author&query=Bellaveglia%2C+M">M. Bellaveglia</a>, <a href="/search/physics?searchtype=author&query=Bencivenga%2C+F">F. Bencivenga</a>, <a href="/search/physics?searchtype=author&query=Benfatto%2C+M">M. Benfatto</a>, <a href="/search/physics?searchtype=author&query=Biedron%2C+S">S. Biedron</a>, <a href="/search/physics?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/physics?searchtype=author&query=Bolognesi%2C+M">M. Bolognesi</a>, <a href="/search/physics?searchtype=author&query=Bolognesi%2C+P">P. Bolognesi</a>, <a href="/search/physics?searchtype=author&query=Boni%2C+R">R. Boni</a>, <a href="/search/physics?searchtype=author&query=Bonifacio%2C+R">R. Bonifacio</a>, <a href="/search/physics?searchtype=author&query=Boscolo%2C+M">M. Boscolo</a>, <a href="/search/physics?searchtype=author&query=Boscherini%2C+F">F. Boscherini</a> , et al. (189 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="1307.7967v1-abstract-short" style="display: inline;"> This report describes the scientific aims and potentials as well as the preliminary technical design of IRIDE, an innovative tool for multi-disciplinary investigations in a wide field of scientific, technological and industrial applications. IRIDE will be a high intensity 'particle factory', based on a combination of a high duty cycle radio-frequency superconducting electron linac and of high ener… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.7967v1-abstract-full').style.display = 'inline'; document.getElementById('1307.7967v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1307.7967v1-abstract-full" style="display: none;"> This report describes the scientific aims and potentials as well as the preliminary technical design of IRIDE, an innovative tool for multi-disciplinary investigations in a wide field of scientific, technological and industrial applications. IRIDE will be a high intensity 'particle factory', based on a combination of a high duty cycle radio-frequency superconducting electron linac and of high energy lasers. Conceived to provide unique research possibilities for particle physics, for condensed matter physics, chemistry and material science, for structural biology and industrial applications, IRIDE will open completely new research possibilities and advance our knowledge in many branches of science and technology. IRIDE will contribute to open new avenues of discoveries and to address most important riddles: What does matter consist of? What is the structure of proteins that have a fundamental role in life processes? What can we learn from protein structure to improve the treatment of diseases and to design more efficient drugs? But also how does an electronic chip behave under the effect of radiations? How can the heat flow in a large heat exchanger be optimized? The scientific potential of IRIDE is far reaching and justifies the construction of such a large facility in Italy in synergy with the national research institutes and companies and in the framework of the European and international research. It will impact also on R&D work for ILC, FEL, and will be complementarity to other large scale accelerator projects. IRIDE is also intended to be realized in subsequent stages of development depending on the assigned priorities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.7967v1-abstract-full').style.display = 'none'; document.getElementById('1307.7967v1-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 July, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">270 pages</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1306.5655">arXiv:1306.5655</a> <span> [<a href="https://arxiv.org/pdf/1306.5655">pdf</a>, <a href="https://arxiv.org/format/1306.5655">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"> SuperB Technical Design Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=SuperB+Collaboration"> SuperB Collaboration</a>, <a href="/search/physics?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/physics?searchtype=author&query=Dorosz%2C+P">P. Dorosz</a>, <a href="/search/physics?searchtype=author&query=Kolodziej%2C+J">J. Kolodziej</a>, <a href="/search/physics?searchtype=author&query=Kucewicz%2C+W">W. Kucewicz</a>, <a href="/search/physics?searchtype=author&query=Sapor%2C+M">M. Sapor</a>, <a href="/search/physics?searchtype=author&query=Jeremie%2C+A">A. Jeremie</a>, <a href="/search/physics?searchtype=author&query=Pous%2C+E+G">E. Grauges Pous</a>, <a href="/search/physics?searchtype=author&query=Bruno%2C+G+E">G. E. Bruno</a>, <a href="/search/physics?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/physics?searchtype=author&query=Diacono%2C+D">D. Diacono</a>, <a href="/search/physics?searchtype=author&query=Donvito%2C+G">G. Donvito</a>, <a href="/search/physics?searchtype=author&query=Fusco%2C+P">P. Fusco</a>, <a href="/search/physics?searchtype=author&query=Gargano%2C+F">F. Gargano</a>, <a href="/search/physics?searchtype=author&query=Giordano%2C+F">F. Giordano</a>, <a href="/search/physics?searchtype=author&query=Loddo%2C+F">F. Loddo</a>, <a href="/search/physics?searchtype=author&query=Loparco%2C+F">F. Loparco</a>, <a href="/search/physics?searchtype=author&query=Maggi%2C+G+P">G. P. Maggi</a>, <a href="/search/physics?searchtype=author&query=Manzari%2C+V">V. Manzari</a>, <a href="/search/physics?searchtype=author&query=Mazziotta%2C+M+N">M. N. Mazziotta</a>, <a href="/search/physics?searchtype=author&query=Nappi%2C+E">E. Nappi</a>, <a href="/search/physics?searchtype=author&query=Palano%2C+A">A. Palano</a>, <a href="/search/physics?searchtype=author&query=Santeramo%2C+B">B. Santeramo</a>, <a href="/search/physics?searchtype=author&query=Sgura%2C+I">I. Sgura</a>, <a href="/search/physics?searchtype=author&query=Silvestris%2C+L">L. Silvestris</a> , et al. (384 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="1306.5655v1-abstract-short" style="display: inline;"> In this Technical Design Report (TDR) we describe the SuperB detector that was to be installed on the SuperB e+e- high luminosity collider. The SuperB asymmetric collider, which was to be constructed on the Tor Vergata campus near the INFN Frascati National Laboratory, was designed to operate both at the Upsilon(4S) center-of-mass energy with a luminosity of 10^{36} cm^{-2}s^{-1} and at the tau/ch… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.5655v1-abstract-full').style.display = 'inline'; document.getElementById('1306.5655v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1306.5655v1-abstract-full" style="display: none;"> In this Technical Design Report (TDR) we describe the SuperB detector that was to be installed on the SuperB e+e- high luminosity collider. The SuperB asymmetric collider, which was to be constructed on the Tor Vergata campus near the INFN Frascati National Laboratory, was designed to operate both at the Upsilon(4S) center-of-mass energy with a luminosity of 10^{36} cm^{-2}s^{-1} and at the tau/charm production threshold with a luminosity of 10^{35} cm^{-2}s^{-1}. This high luminosity, producing a data sample about a factor 100 larger than present B Factories, would allow investigation of new physics effects in rare decays, CP Violation and Lepton Flavour Violation. This document details the detector design presented in the Conceptual Design Report (CDR) in 2007. The R&D and engineering studies performed to arrive at the full detector design are described, and an updated cost estimate is presented. A combination of a more realistic cost estimates and the unavailability of funds due of the global economic climate led to a formal cancelation of the project on Nov 27, 2012. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.5655v1-abstract-full').style.display = 'none'; document.getElementById('1306.5655v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 June, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">495 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> INFN-13-01/PI, LAL 13-01, SLAC-R-1003 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1109.3035">arXiv:1109.3035</a> <span> [<a href="https://arxiv.org/pdf/1109.3035">pdf</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="Chemical Physics">physics.chem-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/10.3103/S1063457612060019">10.3103/S1063457612060019 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The high-pressure phase of boron, 纬-B28: disputes and conclusions of 5 years after discovery </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Oganov%2C+A+R">Artem R. Oganov</a>, <a href="/search/physics?searchtype=author&query=Solozhenko%2C+V+L">Vladimir L. Solozhenko</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">Carlo Gatti</a>, <a href="/search/physics?searchtype=author&query=Kurakevych%2C+O+O">Oleksandr O. Kurakevych</a>, <a href="/search/physics?searchtype=author&query=Godec%2C+Y+L">Yann Le Godec</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="1109.3035v2-abstract-short" style="display: inline;"> 纬-B28 is a recently established high-pressure phase of boron. Its structure consists of icosahedral B12 clusters and B2 dumbbells in a NaCl-type arrangement (B2)未+(B12)未- and displays a significant charge transfer 未~0.5- 0.6. The discovery of this phase proved essential for the understanding and construction of the phase diagram of boron. 纬-B28 was first experimentally obtained as a pure boron all… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.3035v2-abstract-full').style.display = 'inline'; document.getElementById('1109.3035v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1109.3035v2-abstract-full" style="display: none;"> 纬-B28 is a recently established high-pressure phase of boron. Its structure consists of icosahedral B12 clusters and B2 dumbbells in a NaCl-type arrangement (B2)未+(B12)未- and displays a significant charge transfer 未~0.5- 0.6. The discovery of this phase proved essential for the understanding and construction of the phase diagram of boron. 纬-B28 was first experimentally obtained as a pure boron allotrope in early 2004 and its structure was discovered in 2006. This paper reviews recent results and in particular deals with the contentious issues related to the equation of state, hardness, putative isostructural phase transformation at ~40 GPa, and debates on the nature of chemical bonding in this phase. Our analysis confirms that (a) calculations based on density functional theory give an accurate description of its equation of state, (b) the reported isostructural phase transformation in 纬-B28 is an artifact rather than a fact, (c) the best estimate of hardness of this phase is 50 GPa, (d) chemical bonding in this phase has a significant degree of ionicity. Apart from presenting an overview of previous results within a consistent view grounded in experiment, thermodynamics and quantum mechanics, we present new results on Bader charges in 纬-B28 using different levels of quantum-mechanical theory (GGA, exact exchange, and HSE06 hybrid functional), and show that the earlier conclusion about significant degree of partial ionicity in this phase is very robust. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.3035v2-abstract-full').style.display = 'none'; document.getElementById('1109.3035v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 September, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 September, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Superhard Materials, 33 [6] 363-379 (2011) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0811.0451">arXiv:0811.0451</a> <span> [<a href="https://arxiv.org/pdf/0811.0451">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> </div> </div> <p class="title is-5 mathjax"> On the Nature of the Bonding in Metal-Silane sigma-Complexes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=McGrady%2C+G+S">G. Sean McGrady</a>, <a href="/search/physics?searchtype=author&query=Sirsch%2C+P">Peter Sirsch</a>, <a href="/search/physics?searchtype=author&query=Chatterton%2C+N+P">Nicholas P. Chatterton</a>, <a href="/search/physics?searchtype=author&query=Ostermann%2C+A">Andreas Ostermann</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+C">Carlo Gatti</a>, <a href="/search/physics?searchtype=author&query=Altmannshofer%2C+S">Sandra Altmannshofer</a>, <a href="/search/physics?searchtype=author&query=Herz%2C+V">Verena Herz</a>, <a href="/search/physics?searchtype=author&query=Eickerling%2C+G">Georg Eickerling</a>, <a href="/search/physics?searchtype=author&query=Scherer%2C+W">Wolfgang Scherer</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="0811.0451v1-abstract-short" style="display: inline;"> The nature of metal silane sigma-bond interaction has been investigated in several key systems by a range of experimental and computational techniques. The structure of [Cp'Mn(CO)2(eta2-HSiHPh2)] 1 has been determined by single crystal neutron diffraction, and the geometry at the Si atom is shown to approximate to a trigonal bipyramid. This complex is similar to [Cp'Mn(CO)2(eta2-HSiFPh2)] 2, who… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0811.0451v1-abstract-full').style.display = 'inline'; document.getElementById('0811.0451v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0811.0451v1-abstract-full" style="display: none;"> The nature of metal silane sigma-bond interaction has been investigated in several key systems by a range of experimental and computational techniques. The structure of [Cp'Mn(CO)2(eta2-HSiHPh2)] 1 has been determined by single crystal neutron diffraction, and the geometry at the Si atom is shown to approximate to a trigonal bipyramid. This complex is similar to [Cp'Mn(CO)2(eta2-HSiFPh2)] 2, whose structure and bonding characteristics have recently been determined by charge density studies based on high-resolution X-ray and neutron diffraction data. The geometry at the Si atom in these sigma-bond complexes is compared with that in other systems containing hypercoordinate silicon. The Mn-H distances for 1 and 2 in solution have been estimated using NMR T1 relaxation measurements, giving a value of 1.56(3) AA in each case, in excellent agreement with the distances deduced from neutron diffraction. DFT calculations have been employed to explore the bonding in the Mn-H-Si unit in 1 and 2 and in the related system [Cp'Mn(CO)2(eta2-HSiCl3)] 3. These studies support the idea that the oxidative addition of a silane ligand to a transition metal center may be described as an asymmetric process in which the Mn-H bond is formed at an early stage, while both the establishment of the Mn-Si bond and also the activation of the eta2-coordinated Si-H moiety are controlled by the extent of Mn-> sigma*(X-Si-H) back-donation, which increases with increasing electronwithdrawing character of the X substituent trans to the metal-coordinated Si-H bond. This delocalized molecular orbital (MO) approach is complemented and supported by combined experimental and theoretical charge density studies including the source function S(r,Omega). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0811.0451v1-abstract-full').style.display = 'none'; document.getElementById('0811.0451v1-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 November, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">39 pages, 7 figures, 4 tables</span> </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>

CINXE.COM

Search | arXiv e-print repository