Dirac leptogenesis and anomalous U(1)

Date

2004-11-01

Author

Boz, M
Pak, Namık Kemal

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We consider Dirac leptogenesis in supersymmetric theories where the supersymmetry breaking is transmitted to the observable sector by an anomalous U(1) symmetry. This kind of supersymmetry breaking is known to provide a solution to the mu problem and avoid large CP-violation effects. The asymmetries generated by the decays of heavy leptons do not suffer from wash-out due to the equilibration of left- and right-handed neutrinos thanks to the extreme smallness of the neutrino masses. The model ties up the smallness of the neutrino masses and the out-of-equilibrium nature of the heavy lepton decays with no tension with the overproduction of gravitinos.

Subject Keywords

Physics and Astronomy (miscellaneous), Engineering (miscellaneous)

URI

https://hdl.handle.net/11511/62408

Journal

EUROPEAN PHYSICAL JOURNAL C

DOI

https://doi.org/10.1140/epjc/s2004-02022-1

Collections

Department of Physics, Article

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Citation Formats

M. Boz and N. K. Pak, “Dirac leptogenesis and anomalous U(1),” EUROPEAN PHYSICAL JOURNAL C, pp. 507–510, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62408.