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Dirac or Inverse Seesaw Neutrino Masses with $B-L$ Gauge Symmetry and $S_3$ Flavour Symmetry | | Ernest Ma
; Rahul Srivastava
; | | Date: |
18 Nov 2014 | | Abstract: | 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 $S_3$ flavour symmetry. | | Source: | arXiv, 1411.5042 | | Services: | Forum | Review | PDF | Favorites | |
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