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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6865

Title: PeV scale Left-Right symmetry and baryon asymmetry of the Universe
Authors: SARKAR, A
ABHISHEK
YAJNIK, UA
Keywords: cosmic string loops
electroweak baryogenesis
neutrino mass
supersymmetry-breaking
majorana neutrinos
weak-interactions
gauge-theories
leptogenesis
model
parity
Issue Date: 2008
Publisher: ELSEVIER SCIENCE BV
Citation: NUCLEAR PHYSICS B, 800(1-2), 253-269
Abstract: We study the cosmology of two versions of supersymmetric Left-Right symmetric model. The scale of the B-L symmetry breaking in these models is naturally low, 10(4)-10(6) GeV. Spontaneous breakdown of parity is accompanied by a first order phase transition. We simulate the domain walls of the phase transition and show that they provide requisite conditions, specifically, CP violating phase needed for leptogenesis. Additionally soft resonant leptogenesis is conditionally viable in the two models considered. Some of the parameters in the soft supersymmetry breaking terms are shown to be constrained from these considerations. It is argued that the models may be testable in upcoming collider and cosmology experiments. (c) 2008
URI: http://dx.doi.org/10.1016/j.nuclphysb.2008.03.020
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6865
http://hdl.handle.net/10054/6865
ISSN: 0550-3213
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