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Title: Leptonic C P violation and leptogenesis in minimal supersymmetric SU ( 4 ) c × SU ( 2 ) L × SU ( 2 ) R

Abstract

We consider a supersymmetric SU(4) c × SU(2) L × SU(2) R model with a minimal number of Higgs multiplets and Dirac and Majorana CP-violating phases in the neutrino flavor mixing matrix. The model incorporates the charged fermion masses and quark mixings, and uses type I seesaw to explain the solar and atmospheric neutrino oscillations. With the neutrino oscillation data of two mass squared differences and three flavor mixing angles, we employ thermal leptogenesis and the observed baryon asymmetry to find the allowed regions for the Dirac and Majorana phases. For a normal neutrino mass hierarchy, we find that the observed baryon asymmetry can be reproduced by a Dirac phase of around δ CP 3π/2, which is strongly indicated by the recent T2K and NOνA data. For the case of inverted neutrino mass hierarchy, the predicted baryon asymmetry is not compatible with the observed value.

Authors:
;
Publication Date:
Research Org.:
Univ. of Alabama, Tuscaloosa, AL (United States); Univ. of Delaware, Newark, DE (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1467915
Alternate Identifier(s):
OSTI ID: 1503882
Grant/Contract Number:  
[SC0012447; SC0013880]
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
[Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 3]; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Okada, Nobuchika, and Shafi, Qaisar. Leptonic C P violation and leptogenesis in minimal supersymmetric SU ( 4 ) c × SU ( 2 ) L × SU ( 2 ) R. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.035044.
Okada, Nobuchika, & Shafi, Qaisar. Leptonic C P violation and leptogenesis in minimal supersymmetric SU ( 4 ) c × SU ( 2 ) L × SU ( 2 ) R. United States. doi:10.1103/PhysRevD.98.035044.
Okada, Nobuchika, and Shafi, Qaisar. Thu . "Leptonic C P violation and leptogenesis in minimal supersymmetric SU ( 4 ) c × SU ( 2 ) L × SU ( 2 ) R". United States. doi:10.1103/PhysRevD.98.035044.
@article{osti_1467915,
title = {Leptonic C P violation and leptogenesis in minimal supersymmetric SU ( 4 ) c × SU ( 2 ) L × SU ( 2 ) R},
author = {Okada, Nobuchika and Shafi, Qaisar},
abstractNote = {We consider a supersymmetric SU(4)c × SU(2)L × SU(2)R model with a minimal number of Higgs multiplets and Dirac and Majorana CP-violating phases in the neutrino flavor mixing matrix. The model incorporates the charged fermion masses and quark mixings, and uses type I seesaw to explain the solar and atmospheric neutrino oscillations. With the neutrino oscillation data of two mass squared differences and three flavor mixing angles, we employ thermal leptogenesis and the observed baryon asymmetry to find the allowed regions for the Dirac and Majorana phases. For a normal neutrino mass hierarchy, we find that the observed baryon asymmetry can be reproduced by a Dirac phase of around δCP 3π/2, which is strongly indicated by the recent T2K and NOνA data. For the case of inverted neutrino mass hierarchy, the predicted baryon asymmetry is not compatible with the observed value.},
doi = {10.1103/PhysRevD.98.035044},
journal = {Physical Review D},
number = [3],
volume = [98],
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.98.035044

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