130 citations · 1.8k across the 97 of their papers we have counts for
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Leptogenesis Bound on Spontaneous Symmetry Breaking of Global Lepton Number
Pei-Hong Gu, Utpal Sarkar
We propose a new class of leptogenesis bounds on the spontaneous symmetry breaking of global lepton number. These models have a generic feature of inducing new lepton number violat…
Common Origin of Visible and Dark Universe
Pei-Hong Gu, Utpal Sarkar
Dark matter, baryonic matter and dark energy have different properties but contribute comparable energy density to the present Universe. We point out that they may have a common or…
Visible and Dark Matter Genesis and Cosmic Positron/Electron Excesses
Pei-Hong Gu, Utpal Sarkar, Xinmin Zhang
Dark and baryonic matter contribute comparable energy density to the present Universe. The dark matter may also be responsible for the cosmic positron/electron excesses. We connect…
Double Type-II Seesaw, Baryon Asymmetry and Dark Matter for Cosmic e^\pm Excesses
Pei-Hong Gu, Hong-Jian He, Utpal Sarkar +1
We construct a new realization of type-II seesaw for neutrino masses and baryon asymmetry by extending the standard model with one light and two heavy singlet scalars besides one H…
Annihilating Leptogenesis
Pei-Hong Gu, Utpal Sarkar
Leptogenesis is usually realized through decays of heavy particles. In this article we consider another possibility of generating a lepton asymmetry through annihilations of heavy…
ATIC and PAMELA Results on Cosmic e^\pm Excesses and Neutrino Masses
Xiao-Jun Bi, Pei-Hong Gu, Tianjun Li +1
Recently the ATIC and PAMELA collaborations released their results which show the abundant e^\pm excess in cosmic rays well above the background, but not for the \bar{p}. Their dat…