Author:
Bi Huan-Yu,Zhang Ren-You,Ma Wen-Gan,Jiang Yi,Li Xiao-Zhou,Duan Peng-Fei
Abstract
Abstract
The precision study of
production with subsequent
and
decays at the Large Hadron Collider (LHC) aids in the investigation of Higgs gauge couplings and the search for new physics beyond the standard model. In this study, we calculate the shower-matched next-to-leading order QCD and electroweak (EW) corrections from the
annihilation and photon-induced channels to the
production at the
LHC. We deal with the subsequent decays of Higgs and
bosons by adopting the MADSPIN method. Both the integrated cross section and some kinematic distributions of
, H, and their decay products are provided. We find that the QCD correction significantly enhances the leading-order differential cross section, while the EW correction from the
annihilation channel obviously suppresses it, especially in the high energy phase-space region, due to the Sudakov effect. The
- and
-induced relative corrections are positive and insensitive to the transverse momenta of
, H, and their decay products. These photon-induced corrections compensate the negative
-initiated EW correction, and become the dominant EW contribution as the increment of the
colliding energy. The parton shower (PS) effects on kinematic distributions are not negligible. The relative PS correction to the b-jet transverse momentum distribution can exceed 100% in the high
region. Moreover, we investigate the scale and PDF uncertainties, and find that the theoretical error of the
-corrected integrated cross section mainly originates from the renormalization scale dependence of the QCD correction.
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics
Cited by
1 articles.
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