Charged Higgs production in association with a top quark at approximate NNLO

Understand

I present approximate next-to-next-to-leading-order (aNNLO) total and differential cross sections for charged Higgs production in association with a top quark at LHC energies.

• The aNNLO results for the process $bg \rightarrow tH^-$ are derived from next-to-next-to-leading-logarithm (NNLL) resummation of soft-gluon corrections.
• Scale and parton-distribution uncertainties for the cross sections are shown.
• The top-quark transverse-momentum and rapidity distributions are also calculated.