| Literature DB >> 33891464 |
M Amenomori1, Y W Bao2, X J Bi3, D Chen4, T L Chen5, W Y Chen3, Xu Chen3, Y Chen2, S W Cui6, L K Ding3, J H Fang3,7, K Fang3, C F Feng8, Zhaoyang Feng3, Z Y Feng9, Qi Gao5, Q B Gou3, Y Q Guo3, Y Y Guo3, H H He3, Z T He6, K Hibino10, N Hotta11, Haibing Hu5, H B Hu3, J Huang3, H Y Jia9, L Jiang3, H B Jin4, K Kasahara12, Y Katayose13, C Kato14, S Kato15, K Kawata15, W Kihara14, Y Ko14, M Kozai16, G M Le17, A F Li3,8,18, H J Li5, W J Li3,9, Y H Lin3,7, B Liu19, C Liu3, J S Liu3, M Y Liu5, W Liu3, Y-Q Lou20,21,22, H Lu3, X R Meng5, K Munakata14, H Nakada13, Y Nakamura3, H Nanjo1, M Nishizawa23, M Ohnishi15, T Ohura13, S Ozawa24, X L Qian25, X B Qu26, T Saito27, M Sakata28, T K Sako15, J Shao3,8, M Shibata13, A Shiomi29, H Sugimoto30, W Takano10, M Takita15, Y H Tan3, N Tateyama10, S Torii31, H Tsuchiya32, S Udo10, H Wang3, H R Wu3, L Xue8, Y Yamamoto28, Z Yang3, Y Yokoe15, A F Yuan5, L M Zhai4, H M Zhang3, J L Zhang3, X Zhang2, X Y Zhang8, Y Zhang3, Yi Zhang33, Ying Zhang3, S P Zhao3, X X Zhou9.
Abstract
We report, for the first time, the long-awaited detection of diffuse gamma rays with energies between 100 TeV and 1 PeV in the Galactic disk. Particularly, all gamma rays above 398 TeV are observed apart from known TeV gamma-ray sources and compatible with expectations from the hadronic emission scenario in which gamma rays originate from the decay of π^{0}'s produced through the interaction of protons with the interstellar medium in the Galaxy. This is strong evidence that cosmic rays are accelerated beyond PeV energies in our Galaxy and spread over the Galactic disk.Year: 2021 PMID： 33891464 DOI： 10.1103/PhysRevLett.126.141101
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161