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
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.
通用反粒子谱仪(GAPS)实验是探测宇宙线反粒子的一种新方法。2012年6月,原型GAPS实验(pGAPS)在高空气球上成功飞行。pGAPS实验的目标是:测试锂漂移硅(Si(Li))探测器在气球高度的操作,验证全尺寸GAPS仪器工程所需的热模型和冷却概念,并表征宇宙射线和X射线背景。该仪器是从日本宇宙航空研究开发机构(JAXA)位于日本北海道的Taiki Aerospace Research Field发射的。这次飞行总共持续了6个小时,其中3个多小时是在漂浮高度(约33公里)。记录了超过100万次宇宙射线触发,所有飞行目标都达到或超过了。
The General Antiparticle Spectrometer (GAPS) Antarctic Balloon Payload
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)(宇宙科学研究所,日本宇宙航空研究开发机构);Northeastern University(东北大学);University of California, Los Angeles(加州大学洛杉矶分校);INFN, Sezione di Trieste(意大利国家核物理研究所的里雅斯特分部);IFPU(基础物理学研究所);Department of Astronomy & Astrophysics, University of California, San Diego(加州大学圣地亚哥分校天文学与天体物理学系);Columbia Astrophysics Laboratory, Columbia University(哥伦比亚大学哥伦比亚天体物理实验室);INFN, Sezione di Napoli(意大利国家核物理研究所那不勒斯分部);Space Sciences Laboratory, University of California, Berkeley(加州大学伯克利分校空间科学实验室);University of Hawaii at Manoa(夏威夷大学马诺阿分校);Oak Ridge National Laboratory(橡树岭国家实验室)