Imminent phenomenology of a minimal gauge-mediated model

Imminent phenomenology of a minimal gauge-mediated model
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最小规范介导模型的迫在眉睫的现象学

DOI:
10.1103/physrevd.58.115003
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发表时间:
1998
期刊:
影响因子:
5
通讯作者:
U. Sarid
U. Sarid
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
E. Gabrielli;U. Sarid

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我们计算了B → Xsγ的包含分支比,B → Xsl + l −的包含分支比和不对称性,以及μ子的反常磁矩gµ − 2,在一个最小规范介导的超对称破缺模型中,该模型自然会产生大比例的希格斯场真空期望值tan β。这些预测彼此高度相关,只依赖于两个基本参数:超伙伴质量尺度和共同信使质量的对数。与标准模型相比,B → Xsγ衰变和gµ−2的预测与当前实验的一致性更好,但使用正在进行或正在分析的新测量,很快就有可能进行更精确的比较。此外,我们预测在B → Xse + e −和B → Xsµ + µ −不对称性中存在较大偏差,在B → Xse + e −和B → Xsτ + τ −分支比中存在较小偏差,这将在
We calculate the inclusive branching ratio for B → Xsγ, the inclusive branching ratios and asymmetries for B → Xsl + l − , and the anomalous magnetic moment gµ − 2 of the muon, within a minimal gauge-mediated SUSY-breaking model which naturally generates a large ratio tan β of Higgs field vacuum expectation values. These predictions are highly correlated with each other, depending on only two fundamental parameters: the superpartner mass scale and the logarithm of a common messenger mass. The predictions for B → Xsγ decay and gµ−2 are in somewhat better agreement with current experiments than the standard model, but a much sharper comparison will soon be possible using new measurements now in progress or under analysis. Moreover we predict large deviations in B → Xse + e − and B → Xsµ + µ − asymmetries, and somewhat smaller ones in B → Xse + e − and B → Xsτ + τ − branching ratios, which will be detectable in
自然超对称性和 b->s 伽玛约束
DOI: --
发表时间: 2012
期刊: Physics Letters
影响因子: --
作者:
Koji Ishiwata;Natsumi Nagata;Norimi Yokozaki
通讯作者: Norimi Yokozaki