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Sensitivity Of Supersymmetric Dark Matter To The B Quark Mass, Mario E. Gomez, Tarek Ibrahim, Pran Nath, Solveig Skadhauge
Sensitivity Of Supersymmetric Dark Matter To The B Quark Mass, Mario E. Gomez, Tarek Ibrahim, Pran Nath, Solveig Skadhauge
Pran Nath
An analysis of the sensitivity of supersymmetric dark matter to variations in the b quark mass is given. Specifically we study the effects on the neutralino relic abundance from supersymmetric loop corrections to the mass of the b quark. It is known that these loop corrections can become significant for large tanβ. The analysis is carried out in the framework of MSUGRA and we focus on the region where the relic density constraints are satisfied by resonant annihilation through the s-channel Higgs poles. We extend the analysis to include CP phases taking into account the mixing of the CP-even and …
Loop Corrections To Radiative Breaking Of Electroweak Symmetry In Supersymmetry, R. Arnowitt, Pran Nath
Loop Corrections To Radiative Breaking Of Electroweak Symmetry In Supersymmetry, R. Arnowitt, Pran Nath
Pran Nath
One-loop corrections to the radiative breaking of electroweak symmetry in supergravity unified models are analyzed. It is shown that in a physically interesting domain of parameter space there is a large cancellation among the contributions of the first two generations of squarks and the three generations of sleptons to the vacuum expectation value (VEV) equations. Partial cancellations in other sectors are also found. These cancellations reduce the effect of the one-loop contributions to the VEV equations.