TY - JOUR
T1 - Spontaneous baryogenesis from asymmetric inflaton
AU - Takahashi, Fuminobu
AU - Yamada, Masaki
N1 - Funding Information:
M.Y. thanks W. Buchmüller for kind hospitality at DESY where this work was finished. This work is supported by MEXT KAKENHI Grant Numbers 15H05889 and 23104008 (F.T.), JSPS KAKENHI Grant Numbers 24740135 , 26247042 , and 26287039 (F.T.), JSPS Research Fellowships for Young Scientists (No. 25.8715 (M.Y.)), World Premier International Research Center Initiative (WPI Initiative), MEXT , Japan (F.T. and M.Y.), and the Program for the Leading Graduate Schools, MEXT , Japan (M.Y.).
Publisher Copyright:
© 2016 The Authors.
PY - 2016/5/10
Y1 - 2016/5/10
N2 - 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 scenario can be naturally implemented in the chaotic inflation in supergravity.
AB - 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 scenario can be naturally implemented in the chaotic inflation in supergravity.
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U2 - 10.1016/j.physletb.2016.03.020
DO - 10.1016/j.physletb.2016.03.020
M3 - Article
AN - SCOPUS:84960915896
SN - 0370-2693
VL - 756
SP - 216
EP - 220
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -