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arXiv 0706.3145hep-ph
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再论最小规范中介的签名

Revisiting Signature of Minimal Gauge Mediation

Junji Hisano, Yasuhiro Shimizu

摘要:

我们重新审视最小规范介导模型的现象学。该模型是从超对称CP和风味问题出发的。这个模型的一个特点是\tan β自然很大,因为希格斯势中的B项在信使尺度下为零。这导致了各种低能观测的显着超对称性贡献。我们结合最近的理论和实验发展,计算了μ子的反常磁矩和\bar{B} \to X_sγ的分支比.我们发现,目前的实验数据更倾向于低信使规模(\sim 100 TeV)和1 TeV左右的胶子质量。我们还计算了\bar{B} \to X_s 1 ^+1 ^-,B_s \to μ^+μ^-和B^- \to τ^- \bar ν的分支比,并表明这些观测量在这个模型中是强相关的.

英文摘要:

We revisit phenomenology of the minimal gauge-mediated model. This model is motivated from the SUSY CP and flavor problems. A specific feature of this model is that \tanβis naturally large, since the B term in the Higgs potential is zero at the messenger scale. This leads to significant SUSY contributions to various low-energy observables. We evaluate the anomalous magnetic moment of the muon and the branching ratio of \bar{B}\to X_sγtaking account of recent theoretical and experimental developments. We find that the current experimental data prefer a low messenger scale (\sim 100 TeV) and gluino mass around 1 TeV. We also calculate the branching ratios of \bar{B}\to X_s l^+l^-, B_s\to μ^+μ^-, and B^-\to τ^- \barν, and show that these observables are strongly correlated with each other in this model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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