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

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題名:	Electroweak phase transitions in the secluded U(1)'-extended MSSM
作者:	Chiang,CW;Senaha,E
貢獻者:	物理學系
關鍵詞:	SUPERSYMMETRIC STANDARD MODEL;CP-VIOLATION;FINITE-TEMPERATURE;TRANSPORT-EQUATIONS;BARYON ASYMMETRY;HIGGS SECTOR;RADIATIVE-CORRECTIONS;SYMMETRY-BREAKING;CHIRAL FERMIONS;GAUGE SINGLET
日期:	2010
上傳時間:	2012-06-11 10:42:29 (UTC+8)
出版者:	國立中央大學
摘要:	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.
關聯:	JOURNAL OF HIGH ENERGY PHYSICS
顯示於類別:	[物理學系] 期刊論文

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