## Single-top-quark production in the tW{sup {plus_minus}} channel and Higgs boson signals via H{r_arrow}W{sup +}W{sup {minus}} at the CERN Large Hadron Collider

In a recent study by Dittmar and Dreiner it was shown that with appropriate selection cuts the signature of events containing two charged leptons and missing energy represents the best chance of detecting the standard model Higgs scalar in the mass range between 155 and 180 GeV, the primary decay of the Higgs boson being into pairs of charged gauge bosons. The largest background to this channel is due to irreducible W{sup +}W{sup {minus}}X production. In the present paper we calculate the contribution of events of the type bg{r_arrow}tW{sup {plus_minus}}{r_arrow}bW{sup +}W{sup {minus}}{r_arrow}bscr(l){sup +}scr(l){sup {prime}{minus}}{nu}{sub scr(l)}{bar {nu}}{sub scr(l){sup {prime}}}, which havemore »