Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland.
Phys Rev Lett. 2012 Nov 2;109(18):181802. doi: 10.1103/PhysRevLett.109.181802.
A search is presented for the standard model Higgs boson produced in association with top quarks using the full Run II proton-antiproton collision data set, corresponding to 9.45 fb(-1), collected by the Collider Detector at Fermilab. No significant excess over the expected background is observed, and 95% credibility-level upper bounds are placed on the cross section σ(ttH → lepton + missing transverse energy+jets). For a Higgs boson mass of 125 GeV/c(2), we expect to set a limit of 12.6 and observe a limit of 20.5 times the standard model rate. This represents the most sensitive search for a standard model Higgs boson in this channel to date.
呈现了一项使用费米实验室的对撞机探测器采集的完整二期质子-反质子对撞数据（对应 9.45 fb-1），对顶夸克伴随产生的标准模型希格斯玻色子的搜索。未观测到超出预期背景的显著过剩，对截面 σ(ttH → 带电轻子 + 失踪横动量 + 喷注)给出了 95%置信度水平的上界。对于 125 GeV/c2 的希格斯玻色子质量，我们预计将设置 12.6 的限制，并观测到标准模型速率的 20.5 倍的限制。这代表了该道迄今为止对标准模型希格斯玻色子最敏感的搜索。
