Highlights of the results from the GRAPES-3 experiment

SciPost Physics Proceedings Pub Date : 2023-09-28 DOI:10.21468/scipostphysproc.13.021

Hari Haran Balakrishnan, S. Ahmad, M. Chakraborty, S. R. Dugad, Umananda Dev Goswami, S. K. Gupta, Y. Hayashi, P. Jagadeesan, A. Jain, P. Jain, S. Kawakami, H. Kojima, S. Mahapatra, P. K. Mohanty, R. Moharana, Yasushi Muraki, P. K. Nayak, T. Nonaka, A. Oshima, Diptiranjan Pattanaik, B. P. Pant, Mohamed Rameez, K. Ramesh, L. V. Reddy, S. Shibata, Fahim Varsi, M. Zuberi

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Abstract

The GRAPES-3 experiment is a unique, extensive air shower experiment consisting of 400 scintillator detectors spread over 25000 m ^2 2 and a 560 m ^2 2 muon telescope. The experiment located at Ooty, India, has been collecting data for the past two decades. The unique capabilities of GRAPES-3 have allowed the study of cosmic rays over energies from a few TeV to tens of PeV and beyond. The measurement of the directional flux of muons (E _\mu μ ≥1 GeV) by the large muon telescope permits an excellent gamma-hadron separation, which then becomes a powerful tool in the study of multi-TeV gamma-ray sources and the composition of primary cosmic rays. However, the high precision measurements also enable studies of transient atmospheric and interplanetary phenomena such as those produced by thunderstorms and geomagnetic storms. This paper presents some exciting new and recent results, including updates on various ongoing analyses.

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GRAPES-3实验的主要结果

GRAPES-3实验是一个独特的、广泛的气淋实验，由400个闪烁体探测器组成，分布在25000 m ^2和一个560 m ^2的μ子望远镜。这个位于印度乌蒂的实验在过去的二十年里一直在收集数据。GRAPES-3的独特功能使得研究能量从几TeV到几十PeV甚至更高的宇宙射线成为可能。大型μ子望远镜测量μ子的定向通量(e_ \mu μ≥1 GeV)，实现了良好的伽玛-强子分离，从而成为研究多tev伽玛射线源和初级宇宙射线组成的有力工具。然而，高精度的测量也使研究瞬态大气和行星际现象成为可能，例如由雷暴和地磁风暴产生的现象。本文介绍了一些令人兴奋的最新结果，包括各种正在进行的分析的更新。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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