The effect of Coulomb interactions on relic neutrino detection via beta decaying impurities in (semi)metals
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866911599739011072 |
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| author | van der Marck, Karel Cheianov, Vadim |
| author_facet | van der Marck, Karel Cheianov, Vadim |
| contents | Measuring the electron neutrino mass is a long-standing objective and requires a high energy resolution of certain $β$-decay experiments, as well as a visible cosmic neutrino background (C$ν$B) spectrum. Many quantum mechanical and chemical effects could potentially impair the required resolution/visibility, e.g., the Coulomb interactions between the electrons in the $β$-decaying impurity and in the solid-state environment. We analyze the effect when hybridization is suppressed completely using a dielectric spacer, and also when hybridization is present up to the lowest nontrivial order in perturbation theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_01752 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The effect of Coulomb interactions on relic neutrino detection via beta decaying impurities in (semi)metals van der Marck, Karel Cheianov, Vadim High Energy Physics - Phenomenology Mesoscale and Nanoscale Physics Other Condensed Matter Strongly Correlated Electrons Instrumentation and Detectors Measuring the electron neutrino mass is a long-standing objective and requires a high energy resolution of certain $β$-decay experiments, as well as a visible cosmic neutrino background (C$ν$B) spectrum. Many quantum mechanical and chemical effects could potentially impair the required resolution/visibility, e.g., the Coulomb interactions between the electrons in the $β$-decaying impurity and in the solid-state environment. We analyze the effect when hybridization is suppressed completely using a dielectric spacer, and also when hybridization is present up to the lowest nontrivial order in perturbation theory. |
| title | The effect of Coulomb interactions on relic neutrino detection via beta decaying impurities in (semi)metals |
| topic | High Energy Physics - Phenomenology Mesoscale and Nanoscale Physics Other Condensed Matter Strongly Correlated Electrons Instrumentation and Detectors |
| url | https://arxiv.org/abs/2512.01752 |