来自 Borexino 扩展数据集对非标准中微子相互作用的约束
高能物理 - 实验
2026-02-10 v1 高能物理 - 唯象学
摘要
中微子非标准相互作用（NSI）是一个活跃的研究领域，因为它们与潜在的新物理密切相关，例如暗物质搜索和由基本对称性破缺产生的奇异相互作用。Borexino 对太阳中微子前所未有的灵敏度，源于其低本底和精确的能谱测量，能够对标准三味中微子振荡范式的潜在偏差施加严格的约束。本文介绍了使用完整的 Borexino Phase-III 数据集对味对角 NSI 分析的最新进展，扩展了先前在《Constraints on flavor-diagonal non-standard neutrino interactions from Borexino Phase-II》（JHEP 2020, 38）中报告的研究。更新后的分析纳入了 Phase-III 扩展的时间和统计覆盖范围。结果表明，对对角 NSI 参数的灵敏度有所提高，约束条件优于 Phase-II 获得的结果。此外，首次提出了一个包含所有可能非对角 NSI 项的更一般性分析，提供了对与入射和出射中微子味相关的 NSI 参数空间的全面探索。这项工作再次强调了 Borexino 在探索新物理场景中的关键作用，并巩固了其在中微子研究中的遗产。详细讨论了与 Phase-II 结果的比较，以及对 NSI 理论模型的影响。
引用
@article{arxiv.2602.08685,
title = {Constraints on non-standard neutrino interactions from Borexino extended data-set},
author = {V. Antonelli and D. Basilico and G. Bellini and J. Benziger and R. Biondi and B. Caccianiga and F. Calaprice and A. Caminata and A. Chepurnov and D. D'Angelo and A. Derbin and A. Di Giacinto and V. Di Marcello and X. F. Ding and A. Di Ludovico and L. Di Noto and I. Drachnev and D. Franco and C. Galbiati and C. Ghiano and M. Giammarchi and A. Goretti and M. Gromov and D. Guffanti and Aldo Ianni and Andrea Ianni and A. Jany and V. Kobychev and G. Korga and S. Kumaran and M. Laubenstein and E. Litvinovich and P. Lombardi and I. Lomskaya and L. Ludhova and I. Machulin and J. Martyn and E. Meroni and L. Miramonti and M. Misiaszek and V. Muratova and L. Oberauer and V. Orekhov and F. Ortica and M. Pallavicini and L. Pelicci and O. Penek and L. Pietrofaccia and N. Pilipenko and A. Pocar and G. Raikov and M. T. Ranalli and G. Ranucci and A. Razeto and A. Re and N. Rossi and S. Schoenert and D. Semenov and G. Settanta and M. Skorokhvatov and A. Singhal and O. Smirnov and A. Sotnikov and G. Sun and R. Tartaglia and G. Testera and M. D. C. Torri and E. Unzhakov and A. Vishneva and R. B. Vogelaar and F. von Feilitzsch and M. Wojcik and M. Wurm and S. Zavatarelli and X. Zhou and K. Zuber and G. Zuzel},
journal= {arXiv preprint arXiv:2602.08685},
year = {2026}
}
备注
25 pages, 16 figures