超对称性与预对称性：将错误的模型拟合到LHC数据
Supersymmetry With Prejudice: Fitting the Wrong Model to LHC Data
摘要：
我们批判性地研究假设的超对称LHC信号的解释，拟合替代的超对称性破缺的错误模型。我们考虑的信号是超粒子谱中最受限制的一些：具有黄金级联衰变链\tilde{q}_L -> q χ_2^0（-> \tilde{l}^{\pm} l^{ \mp } q）-> χ_1^0 l^+ l^- q的边缘和端点的不变质量分布。我们假设一个CMSSM点是“正确的”，而不是适合的信号，以最小的规范介导的超对称破缺模型（mGMSB）与中性伴子准稳定的最轻的超对称粒子，最小的异常调解（mAMSB）和大体积弦紧化模型（LVS）。mAMSB和LVS可以明确区分CMSSM的参数点假设和1个逆femtobarn的LHC数据在14 TeV。然而，mGMSB将不会被歧视的基础上，运动学的端点，并需要进一步的，更详细的调查。mGMSB和CMSSM的最佳拟合点看起来非常相似，这使得LHC的实验区分似乎不太可能。
英文摘要：
We critically examine interpretations of hypothetical supersymmetric LHC signals, fitting to alternative wrong models of supersymmetry breaking. The signals we consider are some of the most constraining on the sparticle spectrum: invariant mass distributions with edges and end-points from the golden cascade decay chain \tilde{q}_L -> q χ_2^0 (-> \tilde{l}^{\pm} l^{\mp} q) -> χ_1^0 l^+ l^- q. We assume a CMSSM point to be the `correct' one, and fit the signals instead to minimal gauge mediated supersymmetry breaking models (mGMSB) with a neutralino quasi-stable lightest supersymmetric particle, minimal anomaly mediation (mAMSB) and large volume string compactification models (LVS). mAMSB and LVS can be unambiguously discriminated against the CMSSM for the parameter point assumed and 1 inverse femtobarn of LHC data at 14 TeV. However, mGMSB would not be discriminated on the basis of the kinematic end-points alone, and would require further, more detailed investigation. The best-fit points of mGMSB and CMSSM look remarkably similar, making experimental discrimination at the LHC appear unlikely by any means.
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