论文标题
PP SUSY限制对未来E $^+$ e $^ - $ colliders意味着什么
What pp SUSY limits mean for future e$^+$e$^-$ colliders
论文作者
论文摘要
众所周知，E $^+$ e $^ - $ colliders具有确定性的能力，或发现任何SUSY模型，这些模型预测了最轻的Susy粒子（NLSP），该模型的质量略低于碰撞者的一半质量。在这里，我们介绍了当前和未来的强子山脉范围扩展Susy搜索范围的力量的估计，特别强调是否可以声称是否可以在LSP和NLSP群众的一个区域中确保发现或排除是{\ IT {\ it保证} - 其他SUSY的价值观都不可以改变结论。对SUSY参数空间进行了扫描，仅要求NLSP是Bosino（最困难的情况），其质量不大于几个TEV。在该地区发现的质谱，横截面和衰减分支比率面临着未来的强子围栏的敏感性。在我们的结论中，我们权衡了投影所基于的分析的成熟度。结论是，尽管未来的强子围墙具有较大的发现范围，即有可能发现{\ it sosy}模型，但几乎没有任何具有LSP-NLSP低质量差异的模型可以肯定地排除。一方面，预计被排除/发现的模型比具有肠道尺度$ m_1 $ -m_1 $ -m_2 $统一的模型允许的大差异的模型，另一方面，另一方面，一个很小的区域，其中质量差异很小，以至于检测器跟踪量的NLSP衰减很小。但是，不包括后一种可能性不允许排除Wino或Higgsino LSP的可能性：在LSP质量的任何值下，我们可以确定NLSP寿命太短而无法看到信号的模型。
It is well-known that e$^+$e$^-$ colliders have the power to with certainty exclude or discover any SUSY model that predicts a Next to lightest SUSY particle (an NLSP) that has a mass up to slightly below the half the centre-of-mass energy of the collider. Here, we present an estimation of the power of present and future hadron colliders to extend the reach of searches for SUSY, with particular emphasis whether it can be claimed that either discovery or exclusion is {\it guaranteed} in a region of LSP and NLSP masses - no set of values of the other SUSY could change the conclusion. A scan over SUSY parameter space was done, only requiring that the NLSP was a bosino - the hardest case - with mass not larger than a few TeV. The mass-spectrum, cross-sections and decay branching ratios found in this region were confronted with projections of sensitivity at future hadron colliders. In our conclusions we weigh in the maturity of the analysis the projections are based upon. The conclusion is that although future hadron colliders have a large discovery-reach, i.e. potential to discover {\it some} SUSY model, hardly any models with low-to-medium LSP-NLSP mass-differences can be excluded with certainty. The models that are expected to be excluded/discovered are, on one hand, those with mass-differences larger than those allowed by models with GUT-scale $M_1$-$M_2$ unification, and on the other hand, a tiny region where the mass-difference is so small that the NLSP decays in the tracking volume of the detectors. Excluding the latter possibility does not, however, allow to exclude the possibility of a Wino or Higgsino LSP: at any value of the LSP mass, we could identify models where the NLSP lifetime would be too short for a signal to be seen.
