论文标题
检测到高发光性LHC处的重型中性Susy Higgs玻色子腐烂到斑点
Detecting heavy neutral SUSY Higgs bosons decaying to sparticles at the high-luminosity LHC
论文作者
论文摘要
在具有低静电自然性（natsusy）的超对称性（SUSY）模型中，这被认为是Susy最有可能从弦纹景观中脱颖而出的版本，预计Higgsinos在几百个GEV尺度上有望在Electroweak calace上，而electroweak gauginos则居住在TEV量表中。对于TEV规模的重型中性中性Susy Higgs Bosons H和A，正如LHC搜索所要求的那样，则H的主要衰减模式，A将进入Gaugino Plus Higgsino，前提是这些衰减在运动学上是开放的。光higgsinos向软颗粒衰减，因此在很大程度上是看不见的，而gauginos腐烂到W，Z或H加上缺失的横向能（MET）。因此，我们根据来自（主要是）T \ bar {t}，vv和vh产生的大标准模型（SM）背景的H，高光度LHC（HL-LHC）在高光度LHC（HL-LHC）处的H+MET签名的生存能力（其中v = W，v = w，z）。我们还检查了是否可以在光希格西诺诺斯（Light Higgsinos）衰减中存在额外的软清单，从而在背景上增强这些信号通道。我们发现M_A的M_A〜1-2 TEV附近的重要区域与\tanβPlane可以在高光度LHC下使用HL-LHC在95％置信度（Cl）下在5σ和5σ和5σ的高光度LHC下进行探测。
In supersymmetry (SUSY) models with low electroweak naturalness (natSUSY), which have been suggested to be the most likely version of SUSY to emerge from the string landscape, higgsinos are expected at the few hundred GeV scale whilst electroweak gauginos inhabit the TeV scale. For TeV-scale heavy neutral SUSY Higgs bosons H and A, as currently required by LHC searches, then the dominant decay modes of H, A are into gaugino plus higgsino provided these decays are kinematically open. The light higgsinos decay to soft particles so are largely invisible whilst the gauginos decay to W, Z or h plus missing transverse energy (MET). Thus, we examine the viability of H,A-> W+MET, Z+MET and h+MET signatures at the high luminosity LHC (HL-LHC) in light of large Standard Model (SM) backgrounds from (mainly) t\bar{t}, VV and Vh production (where V=W, Z). We also examine whether these signal channels can be enhanced over backgrounds by requiring the presence of an additional soft lepton from the decays of the light higgsinos. We find significant regions in the vicinity of m_A~ 1-2 TeV of the m_A vs. \tanβplane which can be probed at the high luminosity LHC using these dominant signatures by HL-LHC at 5σand at the 95% confidence level (CL).
