标题： DZero实验中单顶夸克电弱产生过程的搜索 显示英文标题

标题： Search for Electroweak Production of Single Top Quarks at DZero

摘要： 本文讨论了在电子+喷流和μ子+喷流衰变道中电弱产生单顶夸克的搜索。 这些测量使用了费米实验室Tevatron对撞机运行1期收集的大约90皮 barn⁻¹的数据，能量为1.8 TeV，并利用DZero探测器。 我们使用包含标记μ子的事件（表明存在b喷流）来设定s通道过程pp̅→tb+X在95%置信水平上的截面上限为39皮 barn。 t通道过程pp̅→tqb+X的上限为58皮 barn。 显示英文摘要

摘要： This paper discusses a search for electroweak production of single top quarks in the electron+jets and muon+jets decay channels. The measurements use ~90 pb^-1 of data from Run 1 of the Fermilab Tevatron collider, collected at 1.8 TeV with the DZero detector. We use events that include a tagging muon, implying the presence of a b jet, to set an upper limit at the 95% confidence level on the cross section for the s-channel process ppbar->tb+X of 39 pb. The upper limit for the t-channel process ppbar->tqb+X is 58 pb.