Abstract
I present results for the two-loop soft anomalous dimensions for associated production of a single top quark with a boson or a charged Higgs boson. The calculation uses expressions for the massive cusp anomalous dimension, which are presented in different forms, and it allows soft-gluon resummation at next-to-next-to-leading-logarithm (NNLL) accuracy. From the NNLL resummed cross section I derive approximate NNLO cross sections for and at LHC energies of 7, 10, and 14 TeV.
4 More- Received 24 May 2010
DOI:https://doi.org/10.1103/PhysRevD.82.054018
© 2010 The American Physical Society