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Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)最新文献

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AMS Highlights AMS亮点
Pub Date : 2021-12-15 DOI: 10.22323/1.395.0016
Javier Berdugo perez
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引用次数: 0
Highlights of LHAASO science results LHAASO科学成果亮点
Pub Date : 2021-12-01 DOI: 10.22323/1.395.0011
Z. Cao
The Large High Altitude Air Shower Observatory (LHAASO) is a complex of extensive air shower (EAS) detector array for very-high energy and ultra-high energy γ-ray observation and cosmic ray studies. LHAASO was completed its construction and has been starting the full-duty operation in July 2021 at Mt Haizi 4,410 meters above sea level, China. With the data collected in 2020, LHAASO found a dozen UHE gamma-ray sources with high significance (> 7σ). Their energy spectra are found extended to about 1 PeV without obvious cut-off. LHAASO also recorded the unprecedent highest energy photon with the energy of 1.4 ± 0.13 PeV. These findings confirmed the existence of PeV particle accelerators in the Milk Way and opened up an era of UHE gamma-ray astronomy. LHAASO measured the energy spectrum of the Crab Nebula from 0.5 TeV up to 1.1 PeV for the first time. LHAASO achieved the absolute energy scale calibration in cosmic ray shower measurements at 21±6 TeV by measuring the Moon shadow drifting in the geo-magnetic field using WCDA. In this proceeding, we summarize the status of LHAASO experiment and highlight the γ-ray results and cosmic ray progresses.
大型高空气淋天文台(LHAASO)是一个大型气淋(EAS)探测器阵列的综合体,用于高能和超高能γ射线观测和宇宙射线研究。LHAASO于2021年7月在海拔4410米的中国海子山建成并开始全面运行。利用2020年收集的数据,LHAASO发现了12个高显著性(> 7σ)的UHE伽马射线源。它们的能谱扩展到1 PeV左右,没有明显的截止。LHAASO还记录到了前所未有的最高能量光子,能量为1.4±0.13 PeV。这些发现证实了银河系中PeV粒子加速器的存在,开启了UHE伽玛射线天文学的新纪元。LHAASO首次测量了蟹状星云从0.5 TeV到1.1 PeV的能谱。LHAASO通过WCDA测量月球阴影在地磁场中的漂移,实现了21±6 TeV宇宙射线雨测量的绝对能量尺度定标。本文综述了LHAASO实验的现状,重点介绍了γ射线和宇宙射线的研究进展。
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引用次数: 3
Highlights from the GRAPES-3 experiment GRAPES-3实验亮点
Pub Date : 2021-11-25 DOI: 10.22323/1.395.0003
P. Mohanty
P.K. Mohanty,a,∗ S. Ahmad, M. Chakraborty, A. Chandra, S.R. Dugad, U.D. Goswami, S.K. Gupta, B. Hariharan, Y. Hayashi, P. Jagadeesan, A. Jain, P. Jain, S. Kawakami, H. Kojima, S. Mahapatra, P.K. Mohanty, R. Moharana, Y. Muraki, P.K. Nayak, T. Nonaka, A. Oshima, B.P. Pant, D. Pattanaik, G.S. Pradhan, P.S. Rakshe, M. Rameez, K. Ramesh, L.V. Reddy, R. Sahoo, R. Scaria, S. Shibata, J. Soni, K. Tanaka, F. Varsi and M. Zuberi [The GRAPES-3 Collaboration]
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引用次数: 2
The Pacific Ocean Neutrino Experiment 太平洋中微子实验
Pub Date : 2021-11-25 DOI: 10.22323/1.395.0024
E. Resconi, Pamela Collaboration
Neutrino telescopes are unrivaled tools to explore the Universe at its most extreme. The current generation of telescopes has shown that very high energy neutrinos are produced in the cosmos, even with hints of their possible origin, and that these neutrinos can be used to probe our understanding of particle physics at otherwise inaccessible regimes. The fluxes, however, are low, which means newer, larger telescopes are needed. Here we present the Pacific Ocean Neutrino Experiment, a proposal to build a multi-cubic-kilometer neutrino telescope off the coast of Canada. The idea builds on the experience accumulated by previous sea-water missions, and the technical expertise of Ocean Networks Canada that would facilitate deploying such a large infrastructure. The design and physics potential of the first stage and a full-scale P-ONE are discussed.
中微子望远镜是探索宇宙最极端状态的无与伦比的工具。当前一代的望远镜已经表明,宇宙中产生了非常高能的中微子,甚至暗示了它们可能的起源,这些中微子可以用来探索我们对粒子物理的理解,否则就无法到达。然而,通量很低,这意味着需要更新、更大的望远镜。在这里,我们提出了太平洋中微子实验,这是一个在加拿大海岸建造一个多立方公里中微子望远镜的建议。这个想法建立在以前的海水任务积累的经验和加拿大海洋网络的技术专长的基础上,这将有助于部署这样一个大型基础设施。讨论了第一级和全尺寸P-ONE的设计和物理潜力。
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引用次数: 30
The Southern Wide-field Gamma-ray Observatory: Status and Prospects 南方宽视场伽玛射线天文台:现状与展望
Pub Date : 2021-11-24 DOI: 10.22323/1.395.0023
J. Hinton
The Southern Wide-field Gamma-ray Observatory (SWGO) Collaboration is currently engaged in design and prototyping work towards the realisation of this future gamma-ray facility. SWGO will complement CTA and the existing ground-particle based-detectors of the Northern Hemisphere (HAWC and LHAASO) with a very wide field and high duty cycle view of the southern sky. Here I summarise the status of the project and plans for the future, including expectations for sensitivity and science targets as well as the status of the site search and technological developments.
南方宽视场伽玛射线天文台(SWGO)合作目前正在设计和原型工作,以实现这一未来的伽玛射线设施。SWGO将补充CTA和北半球现有的基于地面粒子的探测器(HAWC和LHAASO),具有非常宽的视野和高占空比的南部天空视图。在这里,我总结了项目的现状和未来的计划,包括对灵敏度和科学目标的期望,以及场地搜索和技术发展的现状。
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引用次数: 19
Rapporteur Talk: Cosmic Ray Indirect 报告人谈话:宇宙射线间接
Pub Date : 2021-11-24 DOI: 10.22323/1.395.0043
Tareq AbuZayyad
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引用次数: 1
Sustainability in Astroparticle Physics 天体粒子物理学中的可持续性
Pub Date : 2021-11-24 DOI: 10.22323/1.395.1401
S. Funk, V. Grinberg, K. Jahnke, V. Lindenstruth, C. Markou, U. Katz, M. Roth
European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201 AZ Noordwijk, the Netherlands Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany Goethe-University Frankfurt, Institute for Advanced Studies, Max von Laue Street 12 , 60438 Frankfurt, Germany Institute of Nuclear and Particle Physics, NCSR Demokitos, 27 Neapoleos Str., Agia Paraskevi Attikis, 15341 Greece Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen Centre for Astroparticle Physics, Erwin-Rommel-Str. 1, D-91058 Erlangen, Germany 5 Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology, POB 3640 D-76021 Karlsruhe, Germany
欧洲航天局(ESA),欧洲空间研究与技术中心(ESTEC), Keplerlaan 1, 2201 AZ Noordwijk,荷兰马克斯·普朗克天文研究所,Königstuhl 17,德国海德堡D-69117,德国法兰克福歌德大学高级研究所,马克斯·冯·劳厄街12号,60438,德国法兰克福核与粒子物理研究所,NCSR Demokitos,那不勒斯街27号,Agia Paraskevi Attikis, 15341希腊Friedrich-Alexander-Universität erlangen - n rnberg,Erlangen天体粒子物理中心,Erwin-Rommel-Str。5卡尔斯鲁厄理工学院天体粒子物理研究所,POB 3640 D-76021卡尔斯鲁厄,德国
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引用次数: 1
Recent status and results of the Dark Matter Particle Explorer 暗物质粒子探测器的最新状况和结果
Pub Date : 2021-11-24 DOI: 10.22323/1.395.0013
Xiang Li
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引用次数: 1
The advantages of making science accessible 让科学变得通俗易懂的好处
Pub Date : 2021-11-22 DOI: 10.22323/1.395.0028
E. Labbé Waghorn
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引用次数: 0
Searching for Dark Matter from the Sun with the IceCube Detector 用冰立方探测器寻找来自太阳的暗物质
Pub Date : 2021-11-19 DOI: 10.22323/1.395.0020
J. Lazar, R. Abbasi, M. Ackermann, Jenni Adams, J. Aguilar, M. Ahlers, M. Ahrens, C. Alispach, A. A. Alves Junior, N. M. Amin, R. An, K. Andeen, T. Anderson, G. Anton, C. Arguelles, Y. Ashida, S. Axani, X. Bai, A. Balagopal V., A. Barbano, S. Barwick, B. Bastian, V. Basu, S. Baur, R. C. Bay, J. Beatty, K. Becker, J. Becker Tjus, C. Bellenghi, S. BenZvi, D. Berley, E. Bernardini, D. Besson, G. Binder, D. Bindig, E. Blaufuss, S. Blot, M. Boddenberg, F. Bontempo, J. Borowka, S. Boser, O. Botner, J. Bottcher, E. Bourbeau, F. Bradascio, J. Braun, S. Bron, J. Brostean-Kaiser, S. Browne, A. Burgman, R. Burley, R. Busse, M. Campana, E. Carnie-Bronca, Chujie Chen, D. Chirkin, K. Choi, B. Clark, K. Clark, L. Classen, Alan Coleman, G. Collin, J. Conrad, P. Coppin, P. Correa, D. Cowen, R. Cross, C. Dappen, Pranav Dave, C. De Clercq, J. DeLaunay, H. Dembinski, K. Deoskar, S. De Ridder, A. Desai, P. Desiati, K. de Vries, G. de Wasseige, M. De With, T. DeYoung, S. Dharani, Alejandro Diaz, J. C. Díaz-Vélez, M. Dittmer, H
The existence of dark matter (DM) has been well-established by repeated experiments probing various length scales. Even though DM is expected to make up 85% of the current matter content of the Universe, its nature remains unknown. One broad class of corpuscular DM motivated by Standard Model (SM) extensions is weakly interacting massive particles (WIMPs). WIMPs can generically have a non-zero cross-section with SM nuclei, which allows them to scatter off nuclei in large celestial bodies such as the Sun, losing energy and becoming gravitationally bound in the process. After repeated scattering, WIMPs sink to the solar center, leading to an excess of WIMPs there. Subsequently, WIMPs can annihilate to stable SM particles, either directly or through a decay chain of unstable SM particles. Among stable SM particles, only neutrinos can escape the dense solar core. Thus, one may look for an excess of neutrinos from the Sun’s direction as evidence of WIMPs. The IceCube Neutrino Observatory, which detects Cherenkov radiation of charged particles produced in neutrino interactions, is especially well-suited to such searches since it is sensitive to WIMPs with masses in the region preferred by supersymmetric extensions of the SM. In this contribution, I will present the results of IceCube’s most recent solar WIMP search, which includes all neutrino flavors, covers the WIMP mass range from 10 GeV to 1 TeV, and has world-leading sensitivity over this entire range for most channels considered.
暗物质(DM)的存在已经通过探测不同长度尺度的反复实验得到了证实。尽管DM预计占宇宙当前物质含量的85%,但其性质仍然未知。由标准模型(SM)扩展引发的一类广义的微粒子DM是弱相互作用大质量粒子(wimp)。wimp通常与SM核具有非零的横截面,这使得它们能够将大型天体(如太阳)中的原子核散射出去,在此过程中失去能量并受到引力束缚。在反复散射之后,wimp会下沉到太阳中心,导致那里的wimp数量过剩。随后,wimp可以直接或通过不稳定SM粒子的衰变链湮灭为稳定的SM粒子。在稳定的SM粒子中,只有中微子能够逃离致密的太阳核心。因此,人们可以从太阳方向寻找过量的中微子作为wimp存在的证据。冰立方中微子天文台可以探测到中微子相互作用中产生的带电粒子的切伦科夫辐射,它特别适合于这种搜索,因为它对质量在超对称SM扩展首选区域的wimp非常敏感。在这篇文章中,我将介绍冰立方最近的太阳WIMP搜索结果,其中包括所有中微子类型,涵盖了从10 GeV到1 TeV的WIMP质量范围,并且在整个范围内具有世界领先的灵敏度。
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引用次数: 2
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Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)
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