Small-$p_T$ and large-$x$ regions for Higgs transverse momentum distributions

Abstract

It was shown recently that standard resummation of logarithms of $Q/p_T$ can be supplemented with the resummation of logarithmic contributions at large $x=Q^2/s$ in the case of a colourless final state such as Higgs produced via gluon fusion or the production of a lepton pair via Drell--Yan mechanism. Such an improved transverse momentum resummation takes into account soft emissions that are emitted at very small angles. We report on recent phenomenological studies of a combined threshold-improved $p_T$ and threshold resummation formalism to the Higgs boson produced at the LHC where small-$p_T$ and threshold logarithms are resummed up to NNLL and NNLL* respectively. We show that the effect of the modified $p_T$ resummation yields a faster perturbative convergence in the small-$p_T$ region while the effect of the threshold one improves the agreement with fixed-order calculations in the medium and large-$p_T$ regions.

arXiv comment5 pages, 3 figures

References in corpus (11)

• Parton distributions for the LHC Run II
• Transverse-momentum resummation and the spectrum of the Higgs boson at the LHC
• Vector boson production at hadron colliders: hard-collinear coefficients at the NNLO
• NNLO QCD corrections to Higgs boson production at large transverse momentum
• Constraining Light-Quark Yukawa Couplings from Higgs Distributions
• Fiducial cross sections for Higgs boson production in association with a jet at next-to-next-to-leading order in QCD
• Higgs boson production at hadron colliders: hard-collinear coefficients at the NNLO
• Light quark Yukawa couplings from Higgs kinematics
• Large Parameter Cases of the Gauss Hypergeometric Function
• Threshold resummation for high-transverse-momentum Higgs production at the LHC
• Combined threshold and transverse momentum resummation for inclusive observables