Collider searches for dark matter in events with a Z boson and missing energy
Collider searches for dark matter in events with a Z boson and missing energy
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DOI：
10.1103/physrevd.87.074005
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发表时间：
2012-12
影响因子：
5
通讯作者：
Linda M. Carpenter;A. Nelson;C. Shimmin;T. Tait;D. Whiteson
中科院分区：
文献类型：
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作者：
Linda M. Carpenter;A. Nelson;C. Shimmin;T. Tait;D. Whiteson
在对撞机上对暗物质的探测通常涉及高能初始态辐射的特征，而没有可见的反冲粒子。单喷流或单光子特征的探测对暗物质与标准模型粒子的相互作用产生了强大的约束。我们将其扩展到单Z签名和重新解释的ATLAS分析的事件与Z玻色子和失踪的横向动量，以获得暗物质相互作用的质量尺度和核子截面的有效场理论的背景下，描述暗物质通过重介质粒子与夸克或弱玻色子相互作用的约束。
Searches for dark matter at colliders typically involve signatures with energetic initial-state radiation without visible recoil particles. Searches for mono-jet or mono-photon signatures have yielded powerful constraints on dark matter interactions with Standard Model particles. We extend this to the mono-Z signature and reinterpret an ATLAS analysis of events with a Z boson and missing transverse momentum to derive constraints on dark matter interaction mass scale and nucleon cross sections in the context of effective field theories describing dark matter which interacts via heavy mediator particles with quarks or weak bosons.