Spontaneous baryogenesis from asymmetric inflaton
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...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2016-05-01
|
Series: | Physics Letters B |
Online Access: | http://www.sciencedirect.com/science/article/pii/S037026931600191X |
id |
doaj-e0bb7d721c8649d6b881d87a0813bf5b |
---|---|
record_format |
Article |
spelling |
doaj-e0bb7d721c8649d6b881d87a0813bf5b2020-11-24T22:13:56ZengElsevierPhysics Letters B0370-26931873-24452016-05-01756C21622010.1016/j.physletb.2016.03.020Spontaneous baryogenesis from asymmetric inflatonFuminobu Takahashi0Masaki Yamada1Department of Physics, Tohoku University, Sendai, Miyagi 980-8578, JapanKavli IPMU (WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, JapanWe 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.http://www.sciencedirect.com/science/article/pii/S037026931600191X |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fuminobu Takahashi Masaki Yamada |
spellingShingle |
Fuminobu Takahashi Masaki Yamada Spontaneous baryogenesis from asymmetric inflaton Physics Letters B |
author_facet |
Fuminobu Takahashi Masaki Yamada |
author_sort |
Fuminobu Takahashi |
title |
Spontaneous baryogenesis from asymmetric inflaton |
title_short |
Spontaneous baryogenesis from asymmetric inflaton |
title_full |
Spontaneous baryogenesis from asymmetric inflaton |
title_fullStr |
Spontaneous baryogenesis from asymmetric inflaton |
title_full_unstemmed |
Spontaneous baryogenesis from asymmetric inflaton |
title_sort |
spontaneous baryogenesis from asymmetric inflaton |
publisher |
Elsevier |
series |
Physics Letters B |
issn |
0370-2693 1873-2445 |
publishDate |
2016-05-01 |
description |
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. |
url |
http://www.sciencedirect.com/science/article/pii/S037026931600191X |
work_keys_str_mv |
AT fuminobutakahashi spontaneousbaryogenesisfromasymmetricinflaton AT masakiyamada spontaneousbaryogenesisfromasymmetricinflaton |
_version_ |
1725799240976826368 |