Paper

{
  "raw_xml": "<entry>\n    <id>http://arxiv.org/abs/2603.16740v1</id>\n    <title>Prospects for precision CE$ν$NS measurements with electron-capture neutrinos and lithium-based bolometers</title>\n    <updated>2026-03-17T16:20:36Z</updated>\n    <link href='https://arxiv.org/abs/2603.16740v1' rel='alternate' type='text/html'/>\n    <link href='https://arxiv.org/pdf/2603.16740v1' rel='related' title='pdf' type='application/pdf'/>\n    <summary>We evaluate the feasibility of high-precision coherent elastic neutrino-nucleus scattering measurements exploiting mono-energetic neutrinos produced by electron-capture (EC) decays of intense radioactive sources, such as $^{51}$Cr or $^{37}$Ar. To fully exploit the high neutrino flux achievable with EC sources, and accounting for the low energy of EC neutrinos, we evaluate the sensitivity of a compact array of bolometric detectors with absorbers based on light elements, such as lithium, oxygen and fluorine. With 1 kg of LiF detectors, source activities of $\\sim10^{17}$ Bq, and assuming an energy threshold of 20 eV, we expect to achieve a $\\sim 3\\%$ precision on the determination of the neutrino flux with 90 days of measurement. Such a measurement would represent a test of the gallium neutrino anomaly, and could disentangle nuclear effects on gallium from the misevaluation of the EC source activity or short-baseline neutrino oscillations.</summary>\n    <category scheme='http://arxiv.org/schemas/atom' term='hep-ph'/>\n    <category scheme='http://arxiv.org/schemas/atom' term='hep-ex'/>\n    <published>2026-03-17T16:20:36Z</published>\n    <arxiv:comment>v1: 8 pages, 3 figures</arxiv:comment>\n    <arxiv:primary_category term='hep-ph'/>\n    <author>\n      <name>Giovanni Benato</name>\n    </author>\n    <author>\n      <name>Francesca M. Pofi</name>\n    </author>\n    <author>\n      <name>Andrei Puiu</name>\n    </author>\n    <author>\n      <name>Christoph A. Ternes</name>\n    </author>\n  </entry>"
}