Stopping quirks at the LHC
Stopping quirks at the LHC
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DOI：
10.1007/jhep06(2019)090
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发表时间：
2018-11
影响因子：
5.4
通讯作者：
J. Evans;M. Luty
中科院分区：
文献类型：
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作者：
J. Evans;M. Luty
夸克是一种在新的约束规范群下带电的奇异粒子，它可以产生独特的对撞机签名，这取决于它们的矢量质量，量子数和约束尺度。在这项工作中，我们考虑的可能性，在LHC产生的怪癖失去所有的动能，通过电离损失之前逃离检测器，并在没有积极的pp碰撞时湮灭。我们重新设计了现有的CMS搜索R强子的超时衰变，以对怪癖参数空间施加新的限制。我们提出了几个简单的修改，现有的时间搜索策略，可以给这些搜索的灵敏度在区域的怪癖参数空间不包括任何现有的或建议的搜索策略。
Quirks are exotic particles charged under a new confining gauge group that can give rise to unique collider signatures, depending on their vector-like mass, quantum numbers, and the confinement scale. In this work, we consider the possibility that quirks produced at the LHC lose all of their kinetic energy through ionization loss before escaping the detector, and annihilate at a time when there are no active pp collisions. We recast an existing CMS search for out-of-time decays of R-hadrons to place new limits on quirk parameter space. We propose several simple modifications to the existing out-of-time search strategy that can give these searches sensitivity in regions of quirk parameter space not covered by any existing or proposed search strategy.