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arXiv 0806.1516hep-ph
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希格斯衰变与膜引力矢量

Higgs Decays and Brane Gravi-vectors

T. E. Clark, Boyang Liu, S. T. Love, T. ter Veldhuis, C. Xiong

摘要:

考虑了具有稳定质量引力矢量的柔性膜世界模型中的希格斯玻色子玻色子衰变。这样的矢量通过标准模型的能量-动量张量、弱超荷场强度或希格斯标量与标准模型场双线性耦合。的耦合涉及的非本征曲率的作用被突出。结果发现,在目前允许的参数空间内,希格斯粒子衰变为两个引力矢量的速率(表现为不可见的希格斯粒子衰变)可以与任何标准模型衰变模式的速率相媲美。

英文摘要:

Higgs boson decays in flexible brane world models with stable, massive gravi-vectors are considered. Such vectors couple bilinearly to the Standard Model fields through either the Standard Model energy-momentum tensor, the weak hypercharge field strength or the Higgs scalar. The role of the coupling involving the extrinsic curvature is highlighted. It is found that within the presently allowed parameter space, the decay rate of the Higgs into two gravi-vectors (which would appear as an invisible Higgs decay) can be comparable to the rate for any of the Standard Model decay modes.

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