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Thursday, November 5th 2009
12:15 pm:
High Energy Theory Lunchtime Seminar
in 435 Physics
Speaker: Ilia Gogoladze, The Bartol Research Institute, University of Delaware
Subject: Yukawa Unification and Sparticle Spectroscopy
Abstract :
We consider a left-right symmetric SU(4)_c X SU(2)_L X SU(2)_R (4-2-2) model with gravity mediated supersymmetry breaking. We find that with 4-2-2 compatible non-universal gaugino masses, t-b-tau Yukawa coupling unification is consistent with neutralino dark matter abundance and with constraints from collider experiments. The gluino mass lies close to that of the lightest neutralino, so that the gluino co-annihilation channel plays an important role in determining the neutralino relic abundance. We also explore regions of the parameter space in which the little hierarchy problem is partially resolved.
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