GAPS实验对宇宙反氦-3核的灵敏度
高能物理 - 唯象学
2021-04-15 v3 高能天体物理现象
高能物理 - 实验
摘要
通用反粒子谱仪（GAPS）是一项南极气球实验，旨在探测低能（0.10.3 GeV/）宇宙反核，作为暗物质湮灭或衰变的信号。GAPS经过优化以探测低能反氘核，并对低能反质子和反氦核提供前所未有的灵敏度。基于奇异原子形成、衰变和湮灭的GAPS新型反粒子探测技术，对这些低能反核比以往的磁谱仪实验具有更强的鉴别能力。本工作基于完整的仪器模拟、事件重建和真实大气影响模拟，报告了GAPS探测反氦-3核的灵敏度。AMS-02对反氦核候选事件的报告已引起了对反氦核作为暗物质及其他超越标准模型理论探针的极大兴趣。GAPS处于独特地位，可在基本无天体物理背景的能量范围内探测或设定宇宙反氦核通量的上限。在三次35天长航时气球飞行中，GAPS将对能量范围0.110.3 GeV/内通量为 （95%置信水平）的反氦具有灵敏度，从而开启稀有宇宙物理的新窗口。
引用
@article{arxiv.2012.05834,
title = {Cosmic antihelium-3 nuclei sensitivity of the GAPS experiment},
author = {N. Saffold and T. Aramaki and R. Bird and M. Boezio and S. E. Boggs and V. Bonvicini and D. Campana and W. W. Craig and P. von Doetinchem and E. Everson and L. Fabris and H. Fuke and F. Gahbauer and I. Garcia and C. Gerrity and C. J. Hailey and T. Hayashi and C. Kato and A. Kawachi and S. Kobayashi and M. Kozai and A. Lenni and A. Lowell and M. Manghisoni and N. Marcelli and S. I. Mognet and K. Munakata and R. Munini and Y. Nakagami and J. Olson and R. A. Ong and G. Osteria and K. Perez and I. Pope and S. Quinn and V. Re and M. Reed and E. Riceputi and B. Roach and F. Rogers and J. L. Ryan and V. Scotti and Y. Shimizu and M. Sonzogni and R. Sparvoli and A. Stoessl and A. Tiberio and E. Vannuccini and T. Wada and M. Xiao and M. Yamatani and A. Yoshida and T. Yoshida and G. Zampa and J. Zweerink},
journal= {arXiv preprint arXiv:2012.05834},
year = {2021}
}
备注
Accepted for publication at Astroparticle Physics, 13 pages, 5 figures