在顶色辅助的人工色(TC2)理论下,在强子对撞机上研究了顶夸克-反顶夸克对的产生过程中顶夸克的极化效应,在计算过程中,运用了MRS set A’部分子分布函数和螺旋度投影算符的方法.研究结果表明:在Tevatron上顶夸克的极化效应太小不可探测...在顶色辅助的人工色(TC2)理论下,在强子对撞机上研究了顶夸克-反顶夸克对的产生过程中顶夸克的极化效应,在计算过程中,运用了MRS set A’部分子分布函数和螺旋度投影算符的方法.研究结果表明:在Tevatron上顶夸克的极化效应太小不可探测;参数选取得当,该效应在LHC上可以探测到,其值可达16%.因此,顶夸克的极化效应提供了一种切实可行的检验顶色辅助的人工色模型的方法.展开更多
It is generally believed that the low energy effective theory of the minimal supersymmetric standard model is the type 2 two Higgs doublet model.We will show that the type 1 two Higgs doublet model can also be as the ...It is generally believed that the low energy effective theory of the minimal supersymmetric standard model is the type 2 two Higgs doublet model.We will show that the type 1 two Higgs doublet model can also be as the effective of supersymmetry in a specific case with high scale supersymmetry breaking and gauge mediation.If the other electroweak doublet obtain the vacuum expectation value after the electroweak symmetry breaking,the Higgs spectrum is quite different.A remarkable feature is that the physical Higgs boson mass can be 125 GeV unlike in the ordinary models with high scale supersymmetry in which the Higgs mass is generally around 140 GeV.展开更多
文摘在顶色辅助的人工色(TC2)理论下,在强子对撞机上研究了顶夸克-反顶夸克对的产生过程中顶夸克的极化效应,在计算过程中,运用了MRS set A’部分子分布函数和螺旋度投影算符的方法.研究结果表明:在Tevatron上顶夸克的极化效应太小不可探测;参数选取得当,该效应在LHC上可以探测到,其值可达16%.因此,顶夸克的极化效应提供了一种切实可行的检验顶色辅助的人工色模型的方法.
基金Supported by the National Natural Science Foundation of China under Grant Nos.11075193 and 10821504the National Basic Research Program of China under Grant No.2010CB833000
文摘It is generally believed that the low energy effective theory of the minimal supersymmetric standard model is the type 2 two Higgs doublet model.We will show that the type 1 two Higgs doublet model can also be as the effective of supersymmetry in a specific case with high scale supersymmetry breaking and gauge mediation.If the other electroweak doublet obtain the vacuum expectation value after the electroweak symmetry breaking,the Higgs spectrum is quite different.A remarkable feature is that the physical Higgs boson mass can be 125 GeV unlike in the ordinary models with high scale supersymmetry in which the Higgs mass is generally around 140 GeV.
