Next-to-leading order QCD and electroweak corrections to Higgs-strahlung processes at the LHC

TL;DR

This paper provides precise calculations of Higgs-strahlung process cross sections at the LHC, incorporating next-to-leading order QCD and electroweak corrections, and evaluates the impact of different photon PDFs on these predictions.

Contribution

It presents the first comprehensive NLO QCD and electroweak corrections to Higgs-strahlung processes including various photon PDFs and their reweighting effects.

Findings

Photon PDF uncertainties decrease after reweighting.

Predictions from different photon PDFs are in good agreement.

Reweighted photon PDFs improve the accuracy of cross section estimates.

Abstract

In this paper we calculate the total and fiducial cross sections as well as differential distributions for the Higgs-strahlung or VH process $p p \to VH \to l\nu_l/l^- l^+ + H$, (V = W or Z, l=e,$\mu$) including QCD and electro-weak corrections up to next-to-leading order before and after reweighting photon PDFs of NNPDF2.3qed, NNPDF3.0qed, MRST2004qed, CT14QEDinc, and LUXqed at the LHC with 13 TeV and Higgs boson mass $\ M_{H}=125$ GeV. The predictions from the various photon PDFs before and after reweighting against each other are in good agreement. The photon PDF uncertainties of the photon-induced cross sections decrease significantly with the reweighting PDFs.