112 citations · 301 across the 10 of their papers we have counts for
11 papers
Cosmic ray-driven bioenergetics for Life in Molecular Clouds
Lei Feng
According to models such as panspermia or the Nebula-Relay hypothesis, the ancestors of life on Earth once lived in molecular clouds. Then what are the energy source and bioenerget…
Interpretation of the cosmic ray positron and electron excesses with an annihilating-decaying dark matter scenario
Lei Feng, Zhaofeng Kang, Qiang Yuan +2
The precise measurements of energy spectra of cosmic ray positrons and/or electrons by recent experiments show clear excesses above 10 GeV. Moreover, a potential sharp spectral fea…
Confronting the DAMPE Excess with the Scotogenic Type-II Seesaw Model
Ran Ding, Zhi-Long Han, Lei Feng +1
The DArk Matter Particle Explorer (DAMPE) has observed a tentative peak at $E\sim1.4~\TeV$ in the cosmic-ray electron spectrum. In this paper, we interpret this excess in the scoto…
Light Bending in the Infinite Derivative Theories of Gravity
Lei Feng
Light bending is one of the significant predictions of general relativity (GR) and it has been confirmed with great accuracy during the last one hundred years. In this paper, we se…
Interpretations of the possible 42.7 GeV -ray line
Lei Feng, Yun-Feng Liang, Tie-Kuang Dong +1
Recently Liang et al. found a tentative line signal at about 43 GeV in the directions of sixteen nearby Galaxy Clusters. If arising from dark matter annihilation, the mass of the d…
Closing in on singlet scalar dark matter: LUX, invisible Higgs decays and gamma-ray lines
Lei Feng, Stefano Profumo, Lorenzo Ubaldi
We study the implications of the Higgs discovery and of recent results from dark matter searches on real singlet scalar dark matter. The phenomenology of the model is defined by on…
Constraining the distribution of dark matter in inner galaxy with indirect detection signal: The case of tentative 130 gev γ-ray line
Rui-Zhi Yang, Lei Feng, Xiang Li +1
The dark matter distribution in the very inner region of our Galaxy is still in debate. In the N-body simulations a cuspy dark matter halo density profile is favored. Several dissi…
Decaying Asymmetric Dark Matter Relaxes the AMS-Fermi Tension
Lei Feng, Zhaofeng Kang
The first result of AMS-02 confirms the positron fraction excess observed by PAMELA, but the spectrum is somewhat softer than that of PAMELA. In the dark matter (DM) interpretation…
AMS-02 positron excess: new bounds on dark matter models and hint for primary electron spectrum hardening
Lei Feng, Rui-Zhi Yang, Hao-Ning He +3
The data collected by ATIC, CREAM and PAMELA all display remarkable cosmic-ray-nuclei spectrum hardening above the magnetic rigidity 240 GV. One natural speculation is that…
Statistical interpretation of the spatial distribution of current 130 GeV gamma-ray line signal within the dark matter annihilation scenario
Rui-Zhi Yang, Qiang Yuan, Lei Feng +2
Recently, several groups identified a tentative -ray line signal with energy GeV in the central Galaxy from the Fermi-LAT data. %The morphology study shows that the s…
PAMELA/Fermi-LAT electron cosmic ray spectrum at 100 GeV: implication for dark matter annihilation signal in accordance with the 130 GeV -ray line
Lei Feng, Qiang Yuan, Xiang Li +1
Recently, a tentative 130 GeV -ray line signal was identified by quite a few groups. If correct it would constitute a ``smoking gun'' for dark matter annihilations. Interestingl…