Implications of the first CONUS+ measurement of coherent elastic neutrino-nucleus scattering
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908333907116032 |
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| author | De Romeri, Valentina Papoulias, Dimitrios K. Garcia, Gonzalo Sanchez |
| author_facet | De Romeri, Valentina Papoulias, Dimitrios K. Garcia, Gonzalo Sanchez |
| contents | The CONUS+ collaboration has reported their first observation of coherent elastic neutrino-nucleus scattering (CE$ν$NS). The experiment uses reactor electron antineutrinos and germanium detectors with recoil thresholds as low as $160~\mathrm{eV_\text{ee}}$. With an exposure of $327$ kg $\times$ d, the measurement was made with a statistical significance of $3.7 σ$. We explore several physics implications of this observation, both within the standard model and in the context of new physics. We focus on a determination of the weak mixing angle, nonstandard and generalized neutrino interactions both with heavy and light mediators, neutrino magnetic moments, and the up-scattering of neutrinos into sterile fermions through the sterile dipole portal and new mediators. Our results highlight the role of reactor-based \cevns~experiments in probing a vast array of neutrino properties and new physics models. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_17843 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Implications of the first CONUS+ measurement of coherent elastic neutrino-nucleus scattering De Romeri, Valentina Papoulias, Dimitrios K. Garcia, Gonzalo Sanchez High Energy Physics - Phenomenology The CONUS+ collaboration has reported their first observation of coherent elastic neutrino-nucleus scattering (CE$ν$NS). The experiment uses reactor electron antineutrinos and germanium detectors with recoil thresholds as low as $160~\mathrm{eV_\text{ee}}$. With an exposure of $327$ kg $\times$ d, the measurement was made with a statistical significance of $3.7 σ$. We explore several physics implications of this observation, both within the standard model and in the context of new physics. We focus on a determination of the weak mixing angle, nonstandard and generalized neutrino interactions both with heavy and light mediators, neutrino magnetic moments, and the up-scattering of neutrinos into sterile fermions through the sterile dipole portal and new mediators. Our results highlight the role of reactor-based \cevns~experiments in probing a vast array of neutrino properties and new physics models. |
| title | Implications of the first CONUS+ measurement of coherent elastic neutrino-nucleus scattering |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2501.17843 |