Pseudo-scalar Higgs Boson Production at Threshold N$^3$LO and N$^3$LL QCD
Abstract
We present the first results on the production of pseudo-scalar through gluon fusion at the LHC to NLO in QCD taking into account only soft gluon effects. We have used the effective Lagrangian that describes the coupling of pseudo-scalar with the gluons in the large top quark mass limit. We have used recently available quantities namely the three loop pseudo-scalar form factor and the third order universal soft function in QCD to achieve this. Along with the fixed order results, we also present the process dependent resummation coefficient for threshold resummation to NLL in QCD. Phenomenological impact of these threshold NLO corrections to pseudo-scalar production at the LHC is presented and their role to reduce the renormalisation scale dependence is demonstrated.
Keywords
Cite
@article{arxiv.1510.02235,
title = {Pseudo-scalar Higgs Boson Production at Threshold N$^3$LO and N$^3$LL QCD},
author = {Taushif Ahmed and M. C. Kumar and Prakash Mathews and Narayan Rana and V. Ravindran},
journal= {arXiv preprint arXiv:1510.02235},
year = {2016}
}
Comments
34 pages, 17 figures