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arXiv 0706.0977hep-ph
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大tan_β下的轻重MSSM希格斯玻色子玻色子

Light Heavy MSSM Higgs Bosons at Large tan_beta

J. Ellis, S. Heinemeyer, K. A. Olive, G. Weiglein

摘要:

基于对积分亮度的~1 fb^-1的分析,CDF协作组目前排除的MSSM希格斯参数空间区域小于预期的灵敏度。我们分析了MSSM内的这种差异的持久性的潜在影响,假设软超光速打破标量质量的贡献是普遍的,除了那些希格斯质量(NUHM模型)。我们发现,一个轻重MSSM希格斯信号的敏感区域的未被排除的一部分,确实可以容纳在这个简单的模型,即使考虑到其他限制冷暗物质,电弱精密观测和B物理观测。在这种情况下,NUHM表明,在不久的将来,在其他一些测量中,如BR(B_s -> mu+ mu-),BR(b -> s γ)和(g-2)_mu,超对称特征也应该是可检测的,并且M_h必须非常接近LEP排除极限。此外,与此模型相关的暗物质候选者应该在直接探测实验中处于探测的边缘。

英文摘要:

The region of MSSM Higgs parameter space currently excluded by the CDF Collaboration, based on an analysis of ~1 fb^-1 of integrated luminosity, is less than the expected sensitivity. We analyze the potential implications of the persistence of this discrepancy within the MSSM, assuming that the soft supersymmetry-breaking contributions to scalar masses are universal, apart from those to the Higgs masses (the NUHM model). We find that a light heavy MSSM Higgs signal in the unexcluded part of the sensitive region could indeed be accommodated in this simple model, even after taking into account other constraints from cold dark matter, electroweak precision observables and B physics observables. In this case the NUHM suggests that supersymmetric signatures should also be detectable in the near future in some other measurements such as BR(B_s -> mu+ mu-), BR(b -> s gamma) and (g-2)_mu, and M_h would have to be very close to the LEP exclusion limit. In addition, the dark matter candidate associated with this model should be on the verge of detection in direct detection experiments.

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