Single Top Quark Production and Decay at Next-to-leading Order in Hadron Collision

摘要

We present a calculation of the next-to-leading order QCD corrections, withone-scale phase space slicing method, to single top quark production and decayprocess $p\bar{p},pp\to t\bar{b}+X\to b\ell\nu\bar{b}+X$ at hadron colliders.Using the helicity amplitude method, the angular correlation of the final statepartons and the spin correlation of the top quark are preserved. The effect ofthe top quark width is also examined.