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Pinpointing the knee of cosmic rays with diffuse PeV gamma-rays and neutrinos
Y. Q. Guo, H. B. Hu, Q. Yuan +2
The origin of the knee in cosmic ray spectrum remains to be an unsolved fundamental problem. There are various kinds of models which predict different break positions and the compo…
Constraints on the dark matter annihilation from Fermi-LAT observation of M31
Zhengwei Li, Xiaoyuan Huang, Qiang Yuan +1
Gamma-ray is a good probe of dark matter (DM) particles in the Universe. We search for the DM annihilation signals in the direction of the Andromeda galaxy (M31) using 7.5 year Fer…
An Updated Analysis of Inert Higgs Doublet Model in light of the Recent Results from LUX, PLANCK, AMS-02 and LHC
Abdesslam Arhrib, Yue-Lin Sming Tsai, Qiang Yuan +1
In light of the recent discovery by the ATLAS and CMS experiments at the Large Hadron Collider (LHC) of a Higgs-like particle with a narrow mass range of 125-126 GeV, we perform an…
Pulsar interpretation for the AMS-02 result
Peng-Fei Yin, Zhao-Huan Yu, Qiang Yuan +1
The AMS-02 collaboration has just published a high precision measurement of the cosmic positron fraction , which rises with energy from GeV to …
Reconcile the AMS-02 positron fraction and Fermi-LAT/HESS total spectra by the primary electron spectrum hardening
Qiang Yuan, Xiao-Jun Bi
The recently reported positron fraction up to GeV by AMS-02 seems to have tension with the total electron/positron spectra detected by Fermi and HESS, for either pulsar…
Implications of the AMS-02 positron fraction in cosmic rays
Qiang Yuan, Xiao-Jun Bi, Guo-Ming Chen +3
The AMS-02 collaboration has just released its first result of the cosmic positron fraction with high precision up to GeV. The AMS-02 result shows the sa…