Low-energy thermal leptogenesis in an extended NMSSM model

Ma, Ernest ; Sahu, Narendra ; Sarkar, Utpal (2007) Low-energy thermal leptogenesis in an extended NMSSM model Journal of Physics G: Nuclear and Particle Physics, 34 (4). pp. 741-752. ISSN 0954-3899

[img]
Preview
PDF - Author Version
353kB

Official URL: http://iopscience.iop.org/0954-3899/34/4/010

Related URL: http://dx.doi.org/10.1088/0954-3899/34/4/010

Abstract

Thermal leptogenesis in the canonical seesaw model in supersymmetry suffers from the incompatibility of a generic lower bound on the mass scale of the lightest right-handed neutrino and the upper bound on the reheating temperature of the Universe after inflation. This is resolved by adding an extra singlet superfield, with a discrete Z symmetry, to the NMSSM (Next to Minimal Supersymmetric Standard Model). This generic mechanism is applicable to any supersymmetric model for lowering the scale of leptogenesis.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
ID Code:45422
Deposited On:28 Jun 2011 05:19
Last Modified:18 May 2016 01:41

Repository Staff Only: item control page