Spontaneous baryogenesis from asymmetric inflaton

  title={Spontaneous baryogenesis from asymmetric inflaton},
  author={Fuminobu Takahashi and Masaki Yamada},
  journal={Physics Letters B},
We propose a variant scenario of spontaneous baryogenesis from asymmetric inflaton based on current–current interactions between the inflaton and matter fields with a non-zero B−L charge. When the inflaton starts to oscillate around the minimum after inflation, it may lead to excitation of a CP-odd component, which induces an effective chemical potential for the B−L number through the current–current interactions. We study concrete inflation models and show that the spontaneous baryogenesis… Expand
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