Electroweak phase transitions in the secluded U(1)'-extended MSSM

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/52744

Title:	Electroweak phase transitions in the secluded U(1)'-extended MSSM
Authors:	Chiang,CW;Senaha,E
Contributors:	物理學系
Keywords:	SUPERSYMMETRIC STANDARD MODEL;CP-VIOLATION;FINITE-TEMPERATURE;TRANSPORT-EQUATIONS;BARYON ASYMMETRY;HIGGS SECTOR;RADIATIVE-CORRECTIONS;SYMMETRY-BREAKING;CHIRAL FERMIONS;GAUGE SINGLET
Date:	2010
Issue Date:	2012-06-11 10:42:29 (UTC+8)
Publisher:	國立中央大學
Abstract:	The electroweak phase transition (EWPT) in the secluded-U(1)'-extended MSSM (sMSSM) is studied. Using the effective potential at zero and finite temperatures, we search for the non-MSSM-like EWPT in which the light stop mass is larger than the top quark mass. Scanning the parameters relevant to the EWPT, the upper limits of the Higgs boson masses, which are consistent with the strong first order EWPT, are derived. For the lightest CP-even and -odd Higgs bosons, we find mH(1) less than or similar to 160GeV and mA(1) less than or similar to 250 GeV, respectively. In the sMSSM, the tree-level CP violation is possible by the complex soft supersymmetry breaking masses. It is observed that such a CP-violating effect does not spoil the strong first order EWPT for the typical parameter sets.
Relation:	JOURNAL OF HIGH ENERGY PHYSICS
Appears in Collections:	[Department of Physics] journal & Dissertation

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