Department of Physics & Astronomy, University College London, United Kingdom.
Phys Rev Lett. 2009 Dec 11;103(24):241803. doi: 10.1103/PhysRevLett.103.241803. Epub 2009 Dec 10.
Recently there has been much interest in the use of single-jet mass and jet substructure to identify boosted particles decaying hadronically at the LHC. We develop these ideas to address the challenging case of a neutralino decaying to three quarks in models with baryonic violation of R parity. These decays have previously been found to be swamped by QCD backgrounds. We demonstrate for the first time that such a decay might be observed directly at the LHC with high significance, by exploiting characteristics of the scales at which its composite jet breaks up into subjets.
最近，人们对使用单喷注质量和喷注子结构来识别在 LHC 上强子衰变的增强粒子产生了浓厚的兴趣。我们发展了这些想法，以解决中性微子在具有重子破坏 R 宇称的模型中衰变为三个夸克的具有挑战性的情况。这些衰变以前被发现被 QCD 背景淹没。我们首次展示了通过利用其复合喷注分裂成子喷注的尺度上的特征，这种衰变有可能在 LHC 上以高置信度直接观察到。
