对衰变至喷注对的长寿命粒子的更新搜索
高能物理 - 实验
2017-12-06 v2
摘要
本文展示了一项对质量在25至50 GeV/之间、寿命在2至500 ps之间的长寿命粒子的搜索，使用了由LHCb探测器在7和8 TeV质心能量下收集的、对应积分亮度为2.0 fb的质子-质子碰撞数据。假设这些粒子是在一个125 GeV/的类标准模型希格斯玻色子衰变中成对产生的。实验特征是一个单一的长寿命粒子，通过一个带有两个关联喷注的位移顶点来识别。未观察到超出本底的过量事例，并根据长寿命粒子的质量和寿命对其产生截面设定了上限。
引用
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journal= {arXiv preprint arXiv:1705.07332},
year = {2017}
}
备注
All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-065.html