Dirac or inverse seesaw neutrino masses with $B-L$ gauge symmetry and $S_3$ flavor symmetry

Journal Article · 01 February 2015 · Physics Letters B

DOI: https://doi.org/10.1016/j.physletb.2014.12.049 · OSTI ID:1228323

Ma, Ernest; Srivastava, Rahul

Many studies have been made on extensions of the standard model with B – L gauge symmetry. The addition of three singlet (right-handed) neutrinos renders it anomaly-free. It has always been assumed that the spontaneous breaking of B – L is accomplished by a singlet scalar field carrying two units of B – L charge. This results in a very natural implementation of the Majorana seesaw mechanism for neutrinos. However, there exists in fact another simple anomaly-free solution which allows Dirac or inverse seesaw neutrino masses. We show for the first time these new possibilities and discuss an application to neutrino mixing with S₃ flavor symmetry.

• Research Organization: Univ. of California, Riverside, CA (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: SC0008541
• OSTI ID: 1228323
• Alternate ID(s): OSTI ID: 1193705
• Journal Information: Physics Letters B, Journal Name: Physics Letters B Vol. 741 Journal Issue: C; ISSN 0370-2693
• Publisher: ElsevierCopyright Statement
• Country of Publication: Netherlands
• Language: English