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arXiv 1201.4338hep-ph
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费米尺度作为高尺度规范调解的焦点

The Fermi scale as a focus point of high-scale gauge mediation

Felix Brümmer, Wilfried Buchmüller

摘要:

我们考虑最小的超对称标准模型与大标量和gaugino质量项在大统一尺度,这主要是由规范介导的超对称破缺产生。对于某些比率的大统一体规模的质量,确定的信使指数,大的辐射校正导致一个小的电弱规模的方式类似于众所周知的焦点机制。费米尺度、引力子质量和希格西诺质量的大小相当。对于质量约为124 GeV的希格斯粒子,所有其他超粒子的质量都在LHC的范围之外。

英文摘要:

We consider the minimal supersymmetric Standard Model with large scalar and gaugino mass terms at the GUT scale, which are generated predominantly by gauge-mediated supersymmetry breaking. For certain ratios of GUT-scale masses, determined by the messenger indices, large radiative corrections lead to a small electroweak scale in a way which resembles the well-known focus point mechanism. The Fermi scale, the gravitino mass and the higgsino masses are of comparable size. For a Higgs mass of about 124 GeV all other superparticles have masses outside the reach of the LHC.

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