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Title: Nambu-Goldstone Affleck-Dine baryogenesis

Abstract

The Affleck-Dine mechanism creates the baryon asymmetry of the universe from an angular motion of a complex scalar field. The mechanism is efficient and allows for a low reheating temperature of the universe if the scalar field has a flat potential along its radial direction. We consider a possibility that the scalar field is a pseudo-Nambu-Goldstone boson arising from spontaneous breaking of an approximate global symmetry, so that the flatness of the potential is naturally understood. We construct a concrete realization of the idea based on chiral symmetry breaking in an SU(N) gauge theory. The Peccei-Quinn mechanism can be consistently incorporated into the model. We also comment on a possible impact of the model on early universe physics.

Authors:
 [1]
  1. Inst. for Advanced Study, Princeton, NJ (United States). School of Natural Sciences
Publication Date:
Research Org.:
Institute for Advanced Study, Princeton, NJ (United States)
Sponsoring Org.:
USDOE Office of Secretary of Energy (S); USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1596656
Grant/Contract Number:  
SC0009988
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2019; Journal Issue: 8; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Cosmology of Theories beyond the SM

Citation Formats

Harigaya, Keisuke. Nambu-Goldstone Affleck-Dine baryogenesis. United States: N. p., 2019. Web. https://doi.org/10.1007/JHEP08(2019)085.
Harigaya, Keisuke. Nambu-Goldstone Affleck-Dine baryogenesis. United States. https://doi.org/10.1007/JHEP08(2019)085
Harigaya, Keisuke. Mon . "Nambu-Goldstone Affleck-Dine baryogenesis". United States. https://doi.org/10.1007/JHEP08(2019)085. https://www.osti.gov/servlets/purl/1596656.
@article{osti_1596656,
title = {Nambu-Goldstone Affleck-Dine baryogenesis},
author = {Harigaya, Keisuke},
abstractNote = {The Affleck-Dine mechanism creates the baryon asymmetry of the universe from an angular motion of a complex scalar field. The mechanism is efficient and allows for a low reheating temperature of the universe if the scalar field has a flat potential along its radial direction. We consider a possibility that the scalar field is a pseudo-Nambu-Goldstone boson arising from spontaneous breaking of an approximate global symmetry, so that the flatness of the potential is naturally understood. We construct a concrete realization of the idea based on chiral symmetry breaking in an SU(N) gauge theory. The Peccei-Quinn mechanism can be consistently incorporated into the model. We also comment on a possible impact of the model on early universe physics.},
doi = {10.1007/JHEP08(2019)085},
journal = {Journal of High Energy Physics (Online)},
number = 8,
volume = 2019,
place = {United States},
year = {2019},
month = {8}
}

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