Next-to-leading order QCD corrections to $bg \to t W^-$ at CERN Large Hadron Collider

The next-to-leading order QCD corrections to the Standard Model process $bg \to t W^-$ at CERN Large Hadron Collider with $\sqrt{s}=14$ TeV have been calculated, which enhance the tree level cross section by a factor of $1.52-1.83$ for renormalization and factorization scales $\frac{\mu_0}{2} <\mu<2 \mu_0$ ($\mu_0=m_t+m_W$). Our results show that the NLO cross section is about 45.4 pb.