基于IceCube DeepCore三年数据对所有味非标准中微子相互作用与广义物质势的约束
高能物理 - 实验
2021-10-19 v2 高能物理 - 唯象学
摘要
我们报告了由IceCube对大气中微子的观测所得的非标准中微子相互作用（NSI）约束，从单一数据集限制了所有独立耦合强度。此外，IceCube是首个同时约束味破坏与非普适耦合的实验。假想的NSI通常预期由新的重媒介粒子交换引起。在物质中传播的中微子以前向方式散射费米子，动量转移可忽略。因此，研究中微子在地球中传播的物质效应可独立于新物理的能量标度对NSI敏感。我们给出了基于IceCube DeepCore三年数据的大气中微子全味事件样本所得的NSI约束。该分析使用来自所有方向、重建能量介于5.6 GeV与100 GeV之间的中微子。我们报告了在单独考虑各NSI耦合强度时所施加的约束，并在味破坏耦合情形下允许复相位。这表明IceCube对所有其他实验全局分析水平的完整NSI味结构敏感。此外，我们研究了一种广义物质势，其整体标度与味结构也受到约束。
引用
@article{arxiv.2106.07755,
title = {All-flavor constraints on nonstandard neutrino interactions and generalized matter potential with three years of IceCube DeepCore data},
author = {IceCube Collaboration and R. Abbasi and M. Ackermann and J. Adams and J. A. Aguilar and M. Ahlers and M. Ahrens and C. Alispach and A. A. Alves and N. M. Amin and R. An and K. Andeen and T. Anderson and I. Ansseau and G. Anton and C. Argüelles and Y. Ashida and S. Axani and X. Bai and A. Balagopal V. and A. Barbano and S. W. Barwick and B. Bastian and V. Basu and S. Baur and R. Bay and J. J. Beatty and K. -H. Becker and J. Becker Tjus and C. Bellenghi and S. BenZvi and D. Berley and E. Bernardini and D. Z. Besson and G. Binder and D. Bindig and E. Blaufuss and S. Blot and F. Bontempo and J. Borowka and S. Böser and O. Botner and J. Böttcher and E. Bourbeau and F. Bradascio and J. Braun and S. Bron and J. Brostean-Kaiser and S. Browne and A. Burgman and R. S. Busse and M. A. Campana and C. Chen and D. Chirkin and K. Choi and B. A. Clark and K. Clark and L. Classen and A. Coleman and G. H. Collin and J. M. Conrad and P. Coppin and P. Correa and D. F. Cowen and R. Cross and P. 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journal= {arXiv preprint arXiv:2106.07755},
year = {2021}
}
备注
22 pages, 12 figures. This submission matches the published version