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

Okada, Nobuchika; Shafi, Qaisar

doi:10.1103/PhysRevD.98.035044

Title: Leptonic $C P$ violation and leptogenesis in minimal supersymmetric $SU (4)_{c} \times SU (2)_{L} \times SU (2)_{R}$

Journal Article · Thu Aug 30 00:00:00 EDT 2018 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.98.035044· OSTI ID:1467915

Okada, Nobuchika; Shafi, Qaisar

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.

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Research Organization:: Univ. of Alabama, Tuscaloosa, AL (United States); Univ. of Delaware, Newark, DE (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0012447; SC0013880

OSTI ID:: 1467915

Alternate ID(s):: OSTI ID: 1503882

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Vol. 98 Journal Issue: 3; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Title: Leptonic $C P$ violation and leptogenesis in minimal supersymmetric $SU (4)_{c} \times SU (2)_{L} \times SU (2)_{R}$