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arXiv 1809.09714astro-ph.IMphysics.ins-det
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GAPS:一个新的反物质实验Cosmic Ray

GAPS: A New Cosmic Ray Anti-matter Experiment

S. Quinn, T. Aramaki, R. Bird, M. Boezio, S. E. Boggs, V. Bonvicini, D. Campana, W. W. Craig, P. von Doetinchem, E. Everson, L. Fabris, F. Gahbauer, C. Gerrity,… 展开作者

S. Quinn, T. Aramaki, R. Bird, M. Boezio, S. E. Boggs, V. Bonvicini, D. Campana, W. W. Craig, P. von Doetinchem, E. Everson, L. Fabris, F. Gahbauer, C. Gerrity, H. Fuke, C. J. Hailey, T. Hayashi, C. Kato, A. Kawachi, M. Kozai, A. Lowell, M. Martucci, S. I. Mognet, R. Munini, K. Munakata, S. Okazaki, R. A. Ong, G. Osteria, K. Perez, J. Ryan, V. Re, F. Rogers, N. Saffold, Y. Shimizu, R. Sparvoli, A. Stoessl, E. Vannuccini, A. Yoshida, T. Yoshida, G. Zampa, J. Zweerink

摘要:

通用反粒子光谱仪(GAPS)是一种气球载仪器,旨在使用新颖的奇异原子技术探测宇宙射线反物质,避免了AMS,PAMELA或BESS等实验所需的强磁场。它将对动能为$\approx0.05-0.2$ GeV/核子的初级反氘核敏感,与前面提到的最高能量实验有一些重叠。对于$3\times35$日气球飞行,和标准类的主要反氘传播模型,GAPS将是敏感的$m_{\mathrm{DM}}\approx10-100$ GeV c $^{-2}$ WIMP的暗物质通量与天体物理通量比接近100。这个干净的主通道是GAPS的一个关键特性,对于罕见事件搜索至关重要。此外,反质子谱将扩展与高统计测量,以涵盖$0.07 \leq E \leq 0.25 $ GeV域。对于$E>0.2$ GeV的差距数据将补充现有的实验,而$E<0.2$ GeV探索一个新的制度。第一次飞行计划于2020年底在南极洲进行。这些会议记录将描述与暗物质搜索相关的天体物理过程和背景,简要讨论探测器操作以及迄今为止的建设进展。

英文摘要:

The General AntiParticle Spectrometer (GAPS) is a balloon-borne instrument designed to detect cosmic-ray antimatter using the novel exotic atom technique, obviating the strong magnetic fields required by experiments like AMS, PAMELA, or BESS. It will be sensitive to primary antideuterons with kinetic energies of $\approx0.05-0.2$ GeV/nucleon, providing some overlap with the previously mentioned experiments at the highest energies. For $3\times35$ day balloon flights, and standard classes of primary antideuteron propagation models, GAPS will be sensitive to $m_{\mathrm{DM}}\approx10-100$ GeV c$^{-2}$ WIMPs with a dark-matter flux to astrophysical flux ratio approaching 100. This clean primary channel is a key feature of GAPS and is crucial for a rare event search. Additionally, the antiproton spectrum will be extended with high statistics measurements to cover the $0.07 \leq E \leq 0.25 $ GeV domain. For $E>0.2$ GeV GAPS data will be complementary to existing experiments, while $E<0.2$ GeV explores a new regime. The first flight is scheduled for late 2020 in Antarctica. These proceedings will describe the astrophysical processes and backgrounds relevant to the dark matter search, a brief discussion of detector operation, and construction progress made to date.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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