Search for a dark matter candidate produced in association with a single top quark in pp collisions at v[s]=1.96 TeV.
Search for a dark matter candidate produced in association with a single top quark in pp collisions at v[s]=1.96 TeV.
复制标题
搜索与 v[s]=1.96 TeV 处 pp 碰撞中的单个顶夸克相关的候选暗物质。
DOI：
10.1103/physrevlett.108.201802
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发表时间：
2012
影响因子：
8.6
通讯作者：
Aaltonen T
中科院分区：
文献类型：
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作者：
Aaltonen T
我们报道了在CDF II探测器收集的Tevatron碰撞At积分光度数据样本中寻找暗物质的新方法。我们寻找与单个顶夸克相关的暗物质候选者的产生。我们只考虑顶夸克的强子衰变模式，产生三个丢失横向能量的喷注的终态。数据与标准模型一致；因此，我们在过程的横截面上设置了95%的置信度上限，作为候选暗物质质量的函数。对于质量在的范围内的暗物质粒子，极限约为0.5pb。
We report a new search for dark matter in a data sample of an integrated luminosity ofof Tevatroncollisions at, collected by the CDF II detector. We search for production of a dark-matter candidate,, in association with a single top quark. We consider the hadronic decay mode of the top quark exclusively, yielding a final state of three jets with missing transverse energy. The data are consistent with the standard model; we thus set 95% confidence level upper limits on the cross section of the processas a function of the mass of the dark-matter candidate. The limits are approximately 0.5 pb for a dark-matter particle with mass in the range of.