The neutrino force in neutrino backgrounds: Spin dependence and parity-violating effects
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866908584516780032 |
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| author | Ghosh, Mitrajyoti Grossman, Yuval Tangarife, Walter Xu, Xun-Jie Yu, Bingrong |
| author_facet | Ghosh, Mitrajyoti Grossman, Yuval Tangarife, Walter Xu, Xun-Jie Yu, Bingrong |
| contents | The neutrino force results from the exchange of a pair of neutrinos. A neutrino background can significantly influence this force. In this work, we present a comprehensive calculation of the neutrino force in various neutrino backgrounds with spin dependence taken into account. In particular, we calculate the spin-independent and spin-dependent parity-conserving neutrino forces, in addition to the spin-dependent parity-violating neutrino forces with and without the presence of a neutrino background for both isotropic and anisotropic backgrounds. Compared with the vacuum case, the neutrino background can effectively violate Lorentz invariance and lead to additional parity-violating terms that are not suppressed by the velocity of external particles. We estimate the magnitude of the effect of atomic parity-violation experiments, and it turns out to be well below the current experimental sensitivity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_16801 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The neutrino force in neutrino backgrounds: Spin dependence and parity-violating effects Ghosh, Mitrajyoti Grossman, Yuval Tangarife, Walter Xu, Xun-Jie Yu, Bingrong High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment The neutrino force results from the exchange of a pair of neutrinos. A neutrino background can significantly influence this force. In this work, we present a comprehensive calculation of the neutrino force in various neutrino backgrounds with spin dependence taken into account. In particular, we calculate the spin-independent and spin-dependent parity-conserving neutrino forces, in addition to the spin-dependent parity-violating neutrino forces with and without the presence of a neutrino background for both isotropic and anisotropic backgrounds. Compared with the vacuum case, the neutrino background can effectively violate Lorentz invariance and lead to additional parity-violating terms that are not suppressed by the velocity of external particles. We estimate the magnitude of the effect of atomic parity-violation experiments, and it turns out to be well below the current experimental sensitivity. |
| title | The neutrino force in neutrino backgrounds: Spin dependence and parity-violating effects |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2405.16801 |