b-τ Yukawa (non)unification in the constrained minimal supersymmetric model

b-τ Yukawa (non)unification in the constrained minimal supersymmetric model
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约束最小超对称模型中的 b-τ Yukawa(非)统一

DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
Martin Spinrath
Martin Spinrath
中科院分区:
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文献类型:
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作者:
Maurizio Monaco;Martin Spinrath

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超对称大统一通常在GUT尺度上提供底夸克和tau轻子汤川耦合的统一。在CMSSM中,这只能通过非常特殊的参数选择来实现。在这封信中,我们研究了大tan β区中较少特殊参数的GUT尺度比y_tau/y_b,并确定了当前实验数据首选的一个参数区域。在这个区域,在大型强子对撞机的范围内,这个比率非常接近最近提出的3/2的值。
Supersymmetric Grand Unification usually provides unification of the bottom quark and the tau lepton Yukawa couplings at the GUT scale. In the CMSSM this can be realised only for a very particular choice of parameters. In this letter we study the GUT scale ratio y_tau/y_b for less peculiar parameters in the large tan beta regime and identify one parameter region preferred by current experimental data. In this region, which is well within the reach of the LHC, the ratio is very close to the recently proposed value of 3/2.