Limits on the Existence of sub-MeV Sterile Neutrinos from the Decay of Be7 in Superconducting Quantum Sensors
| العنوان: | Limits on the Existence of sub-MeV Sterile Neutrinos from the Decay of Be7 in Superconducting Quantum Sensors |
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| المؤلفون: | Vincenzo Lordi, David McKeen, C. Bray, Jens Dilling, G. B. Kim, S. Fretwell, Amit Samanta, A. Lennarz, Stephan Friedrich, P. Machule, J. A. Hall, K. G. Leach, Chris Ruiz, R. Cantor, Fernando Ponce, William K. Warburton, X. Mougeot |
| المصدر: | Physical Review Letters. 126 |
| بيانات النشر: | American Physical Society (APS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Physics, Superconductivity, Range (particle radiation), Sterile neutrino, Electron capture, High Energy Physics::Phenomenology, Quantum sensor, General Physics and Astronomy, 7. Clean energy, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, Atom, Superconducting tunnel junction, High Energy Physics::Experiment, 010306 general physics |
| الوصف: | Sterile neutrinos are natural extensions to the standard model of particle physics and provide a possible portal to the dark sector. We report a new search for the existence of sub-MeV sterile neutrinos using the decay-momentum reconstruction technique in the decay of $^{7}\mathrm{Be}$. The experiment measures the total energy of the $^{7}\mathrm{Li}$ daughter atom from the electron capture decay of $^{7}\mathrm{Be}$ implanted into sensitive superconducting tunnel junction (STJ) quantum sensors. This first experiment presents data from a single STJ operated at a low count rate for a net total of 28 days, and provides exclusion limits on sterile neutrinos in the mass range from 100 to 850 keV that improve upon previous work by up to an order of magnitude. |
| تدمد: | 1079-7114 0031-9007 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6ed8348d47bef57cbe9f3dfed131c775 https://doi.org/10.1103/physrevlett.126.021803 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........6ed8348d47bef57cbe9f3dfed131c775 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10797114 00319007 |
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