Probing neutrino magnetic moment at the Jinping neutrino experiment
Abstract Neutrino magnetic moment (νMM) is an important property of massive neutrinos. The recent anomalous excess at few keV electronic recoils observed by the XENON1T collaboration might indicate a ∼ 2.2 × 10 −11 μ B effective neutrino magnetic moment ( μ ν eff $$ {\mu}_{\nu}^{\mathrm{eff}} $$ ) f...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-08-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP08(2021)068 |
| _version_ | 1819066188004589568 |
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| author | Baobiao Yue Jiajun Liao Jiajie Ling |
| author_facet | Baobiao Yue Jiajun Liao Jiajie Ling |
| author_sort | Baobiao Yue |
| collection | DOAJ |
| description | Abstract Neutrino magnetic moment (νMM) is an important property of massive neutrinos. The recent anomalous excess at few keV electronic recoils observed by the XENON1T collaboration might indicate a ∼ 2.2 × 10 −11 μ B effective neutrino magnetic moment ( μ ν eff $$ {\mu}_{\nu}^{\mathrm{eff}} $$ ) from solar neutrinos. Therefore, it is essential to carry out the νMM searches at a different experiment to confirm or exclude such a hypothesis. We study the feasibility of doing νMM measurement with 4 kton fiducial mass at Jinping neutrino experiment (Jinping) using electron recoil data from both natural and artificial neutrino sources. The sensitivity of μ ν eff $$ {\mu}_{\nu}^{\mathrm{eff}} $$ can reach < 1.2 × 10 −11 μ B at 90% C.L. with 10-year data taking of solar neutrinos. Besides the abundance of the intrinsic low energy background 14C and 85Kr in the liquid scintillator, we find the sensitivity to νMM is highly correlated with the systematic uncertainties of pp and 85Kr. Reducing systematic uncertainties (pp and 85Kr) and the intrinsic background (14C and 85Kr) can help to improve sensitivities below these levels and reach the region of astrophysical interest. With a 3 mega-Curie (MCi) artificial neutrino source 51Cr installed at Jinping neutrino detector for 55 days, it could give us a sensitivity to the electron neutrino magnetic moment ( μ ν e $$ {\mu}_{\nu_e} $$ ) with < 1.1 × 10 −11 μ B at 90% C.L. . With the combination of those two measurements, the flavor structure of the neutrino magnetic moment can be also probed at Jinping. |
| first_indexed | 2024-12-21T15:58:23Z |
| format | Article |
| id | doaj.art-88e83c3a163a40f6befe340c88930146 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-21T15:58:23Z |
| publishDate | 2021-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-88e83c3a163a40f6befe340c889301462022-12-21T18:58:02ZengSpringerOpenJournal of High Energy Physics1029-84792021-08-012021812110.1007/JHEP08(2021)068Probing neutrino magnetic moment at the Jinping neutrino experimentBaobiao Yue0Jiajun Liao1Jiajie Ling2School of Physics, Sun Yat-sen UniversitySchool of Physics, Sun Yat-sen UniversitySchool of Physics, Sun Yat-sen UniversityAbstract Neutrino magnetic moment (νMM) is an important property of massive neutrinos. The recent anomalous excess at few keV electronic recoils observed by the XENON1T collaboration might indicate a ∼ 2.2 × 10 −11 μ B effective neutrino magnetic moment ( μ ν eff $$ {\mu}_{\nu}^{\mathrm{eff}} $$ ) from solar neutrinos. Therefore, it is essential to carry out the νMM searches at a different experiment to confirm or exclude such a hypothesis. We study the feasibility of doing νMM measurement with 4 kton fiducial mass at Jinping neutrino experiment (Jinping) using electron recoil data from both natural and artificial neutrino sources. The sensitivity of μ ν eff $$ {\mu}_{\nu}^{\mathrm{eff}} $$ can reach < 1.2 × 10 −11 μ B at 90% C.L. with 10-year data taking of solar neutrinos. Besides the abundance of the intrinsic low energy background 14C and 85Kr in the liquid scintillator, we find the sensitivity to νMM is highly correlated with the systematic uncertainties of pp and 85Kr. Reducing systematic uncertainties (pp and 85Kr) and the intrinsic background (14C and 85Kr) can help to improve sensitivities below these levels and reach the region of astrophysical interest. With a 3 mega-Curie (MCi) artificial neutrino source 51Cr installed at Jinping neutrino detector for 55 days, it could give us a sensitivity to the electron neutrino magnetic moment ( μ ν e $$ {\mu}_{\nu_e} $$ ) with < 1.1 × 10 −11 μ B at 90% C.L. . With the combination of those two measurements, the flavor structure of the neutrino magnetic moment can be also probed at Jinping.https://doi.org/10.1007/JHEP08(2021)068Neutrino Detectors and Telescopes (experiments) |
| spellingShingle | Baobiao Yue Jiajun Liao Jiajie Ling Probing neutrino magnetic moment at the Jinping neutrino experiment Journal of High Energy Physics Neutrino Detectors and Telescopes (experiments) |
| title | Probing neutrino magnetic moment at the Jinping neutrino experiment |
| title_full | Probing neutrino magnetic moment at the Jinping neutrino experiment |
| title_fullStr | Probing neutrino magnetic moment at the Jinping neutrino experiment |
| title_full_unstemmed | Probing neutrino magnetic moment at the Jinping neutrino experiment |
| title_short | Probing neutrino magnetic moment at the Jinping neutrino experiment |
| title_sort | probing neutrino magnetic moment at the jinping neutrino experiment |
| topic | Neutrino Detectors and Telescopes (experiments) |
| url | https://doi.org/10.1007/JHEP08(2021)068 |
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