Determination of charged Higgs couplings at the LHC
  We review the study of the charged Higgs and top quark associated production at the LHC with the presence of an additional scalar doublet. Top quark spin effects are related to the Higgs fermion couplings through this process. The angular distributions with respect to top quark spin turn out to be distinctive observables to study the $Htb$ interaction in different models. 
Xue Gong, Zong-Guo Si, Shuo Yang and Ya-Juan Zheng
hep-ph