Abstract
We explore a gauged U(1)B−L extension of the standard model with inclusion of three right-handed neutrinos of exotic B−L charges to cancel the gauge anomaly. Non-trivial transformation of new particles under B−L symmetry forbids the generation of neutrino mass at tree level and hence a small Dirac mass can be generated radiatively at one loop with scalar, fermion doublets and singlet scalars. We also discuss the phenomenology of a scalar dark matter, which can be obtained from the mixing of neutral CP even component of a doublet scalar and a real singlet scalar. An adhoc Z2 symmetry is required in the current framework to stabilize the dark matter candidate. Presence of new particles with Z2 odd charges and small mass splitting, makes the phenomenology more interesting by governing the relic density with co-annihilation processes. We explore the spin-independent direct detection constraints on dark matter via the scalar mediation. Constraints from lepton flavor violating decay processes like μ→eγ are also discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.