Inflation and leptogenesis from right handed sneutrinos in supergravity

Marco Peloso

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We describe a supergravity model of inflation where the inflaton is identified with one linerar combination of two right handed sneutrino fields. The potential along the inflationary trajectory is flatter than that of massive chaotic inflation, resulting in a detectable but not ruled out tensor-to-scalar ratio r. In general, the potential for the two sneutrinos has complex phases. As a result, the two neutrinos can develop a nonvanishing lepton charge through a simple modification of the Affleck-Dine mechanism. [This talk summarizes the work of Evans, Ghergetta, and Peloso, Phys. Rev. D 92, no. 2, 021303 (2015) (Ref. 1). Please refer to that work for details and for a more comprehensive list of references.]

Original languageEnglish (US)
Title of host publicationCETUP* 2015 - Workshop on Dark Matter, Neutrino Physics and Astrophysics and PPC 2015 - IXth International Conference on Interconnections between Particle Physics and Cosmology
EditorsRouzbeh Allahverdi, Jason Kumar, Louis Strigari, Bhaskar Dutta, Farinaldo Queiroz, Kaladi Babu, Rebecca Surman, Barbara Szczerbinska, Baha Balantekin, Teruki Kamon
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414006
DOIs
StatePublished - Jun 21 2016
Event5th Workshop on Dark Matter, Neutrino Physics and Astrophysics, CETUP* 2015 and 9th International Conference on Interconnections between Particle Physics and Cosmology, PPC 2015 - Lead/Deadwood, United States
Duration: Jun 15 2015Jul 17 2015

Publication series

NameAIP Conference Proceedings
Volume1743
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other5th Workshop on Dark Matter, Neutrino Physics and Astrophysics, CETUP* 2015 and 9th International Conference on Interconnections between Particle Physics and Cosmology, PPC 2015
CountryUnited States
CityLead/Deadwood
Period6/15/157/17/15

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