TY - JOUR

T1 - Revisiting signature of minimal gauge mediation

AU - Hisano, Junji

AU - Shimizu, Yasuhiro

N1 - Funding Information:
The work of J.H. is supported by the Grant-in-Aid for Science Research, Ministry of Education, Science and Culture, Japan (Nos. 19034001 and 18034002). Also that of Y.S. is supported by the BK21 program of Ministry of Education, the KRF Grant KRF-2005-210-C000006 funded by the Korean Government and the Grant No. R02-2005-000-10303-0 from the Basic Research Program of the Korea Science and Engineering Foundation.

PY - 2007/11/8

Y1 - 2007/11/8

N2 - 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 tan β is 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 over(B, ̄) → Xs γ taking account of recent theoretical and experimental developments. We find that the current experimental data prefer a low messenger scale (∼ 100 TeV) and gluino mass around 1 TeV. We also calculate the branching ratios of over(B, ̄) → Xs l+ l-, Bs → μ+ μ-, and B- → τ- over(ν, ̄), and show that these observables are strongly correlated with each other in this model.

AB - 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 tan β is 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 over(B, ̄) → Xs γ taking account of recent theoretical and experimental developments. We find that the current experimental data prefer a low messenger scale (∼ 100 TeV) and gluino mass around 1 TeV. We also calculate the branching ratios of over(B, ̄) → Xs l+ l-, Bs → μ+ μ-, and B- → τ- over(ν, ̄), and show that these observables are strongly correlated with each other in this model.

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U2 - 10.1016/j.physletb.2007.08.087

DO - 10.1016/j.physletb.2007.08.087

M3 - Article

AN - SCOPUS:35349004102

VL - 655

SP - 269

EP - 279

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 5-6

ER -