Free Meson Seminars
Left-Right supersymmetric extension of Standard Model and its Cosmological Signatures
by Dr. Anjishnu Sarkar (IOP, Bhubaneswar)
Friday, January 15, 2010
from
to
(Asia/Kolkata)
at Colaba Campus ( A-304 )
at Colaba Campus ( A-304 )
Description |
We consider salient cosmological features of a left-right supersymmetric extension of standard model. The requirement of breaking parity and also obtaining charge preserving vacua introduces some unique features to this model (MSLRM), esulting in a preference for nonthermal leptogenesis. Assuming that the model preserves TeV scale supersymmetry, we show that the vacuum structure generically possesses domain walls, which can serve two important purposes. They can signal a secondary inflation required to remove unwanted relics such as gravitino and moduli and also generate lepton asymmetry by a mechanism similar to electroweak baryogenesis. The requirement of disappearance of domain walls imposes constraints on the soft parameters of the theory, potentially testable at the TeV scale. |
Organised by | Dr. Nilmani Mathur |