دورية أكاديمية
Beta spectrum of unique first-forbidden decays as a novel test for fundamental symmetries
| العنوان: | Beta spectrum of unique first-forbidden decays as a novel test for fundamental symmetries |
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| المؤلفون: | Ayala Glick-Magid, Yonatan Mishnayot, Ish Mukul, Michael Hass, Sergey Vaintraub, Guy Ron, Doron Gazit |
| المصدر: | Physics Letters B, Vol 767, Iss C, Pp 285-288 (2017) |
| بيانات النشر: | Elsevier, 2017. |
| سنة النشر: | 2017 |
| المجموعة: | LCC:Physics |
| مصطلحات موضوعية: | Beta decay spectrum, Forbidden transitions, Beyond the Standard Model, Weak interaction, Physics, QC1-999 |
| الوصف: | Within the Standard Model, the weak interaction of quarks and leptons is characterized by certain symmetry properties, such as maximal breaking of parity and favored helicity. These are related to the V−A structure of the weak interaction. These characteristics were discovered by studying correlations in the directions of the outgoing leptons in nuclear beta decays. Presently, correlation measurements in nuclear beta decays are intensively studied to probe for signatures for deviations from these couplings, which are an indication of Beyond Standard Model physics. We show that the structure of the energy spectrum of emitted electrons in unique first-forbidden β-decays is sensitive to the symmetries of the weak interaction, and thus can be used as a novel probe of physics beyond the standard model. Furthermore, the energy spectrum gives constraints both in the case of right and left couplings of the new beyond standard model currents. We show that a measurement with modest energy resolution of ≈20 keV is expected to lead to new constraints on beyond the standard model interactions with tensor couplings. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0370-2693 1873-2445 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S0370269317301132; https://doaj.org/toc/0370-2693; https://doaj.org/toc/1873-2445 |
| DOI: | 10.1016/j.physletb.2017.02.023 |
| URL الوصول: | https://doaj.org/article/13efd8cb651c486e816a283989188a29 |
| رقم الأكسشن: | edsdoj.13efd8cb651c486e816a283989188a29 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 03702693 18732445 |
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| DOI: | 10.1016/j.physletb.2017.02.023 |