2006/10/25 by Wagner, Wolfgang
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)
paper · doi:10.48550/arxiv.hep-ex/0610074
This article reports on recent searches for single-top-quark production by the CDF and DO collaborations at the Tevatron. Neither two CDF analyses, using data corresponding to 695 pb-1 of integrated luminosity, nor a DO search based on 370 pb-1 of data can establish a signal for this standard model process. These null results translate in upper limits on the cross section of 2.9 pb for the t-channel production mode and 3.2 pb for the s-channel mode at the 95% C.L. In addition, the DO collaboration has searched for non-standard model production of single-top-quarks via a heavy Wprime boson. No signal of this process is found resulting in lower mass limits of 610 GeV/c2 for a left-handed Wprime and 630 GeV/c2 for a right-handed W^′ boson.