Leptogenesis from spontaneous symmetry breaking during inflation

Wu, Yi-Peng; Yang, Louis; Kusenko, Alexander

doi:10.1007/JHEP12(2019)088

Title: Leptogenesis from spontaneous symmetry breaking during inflation

Journal Article · 10 December 2019 · Journal of High Energy Physics (Online)

DOI: https://doi.org/10.1007/JHEP12(2019)088 · OSTI ID:1608307

Wu, Yi-Peng ^[1]; Yang, Louis ^[2]; Kusenko, Alexander ^[2]

Univ. of Tokyo (Japan); UCLA
Univ. of Tokyo (Japan). Kavli Inst. for the Physics and Mathematics of the Universe (Kavli IPMU)

Symmetry breaking in the Higgs field via a non-minimal coupling to gravity or higher-dimensional interactions with the inflaton can lead to condensation at a large vacuum expectation value (VEV) during inflation. After inflation is over, the Higgs field must relax to the minimum of its effective potential, creating an era in which the CPT is effectively broken by the time-depended VEV. We show that the matter-antimatter asymmetry can be generated during this relaxation epoch.

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Research Organization:: Univ. of California, Los Angeles, CA (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Grant/Contract Number:: SC0009937

OSTI ID:: 1608307

Journal Information:: Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 12 Vol. 2019; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Title: Leptogenesis from spontaneous symmetry breaking during inflation

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