Double Parton Scattering in Associate Higgs Boson Production with Bottom Quarks at Hadron Colliders

TL;DR

Problem: quantify Higgs production in association with bottom quarks at the LHC and assess the role of double parton scattering (DPS) as a source for the same final state. Approach: apply LO calculations for gg -> bb h and q qbar -> bb h with pT(b) > 20 GeV, using MRST PDFs, MadGraph/HELAS, VEGAS, and adopt a DPS framework with σ_eff from CDF. Findings: DPS can yield a non-negligible bb h rate at LHC energies due to large bb flux, potentially contributing as background; exclusive hadronic decays face strong QCD backgrounds. Implication: DPS should be included in Higgs bb analyses, and channel-by-channel assessment is needed for hadronic final states in high-luminosity hadron colliders.

Abstract

Higgs boson production in association with bottom quarks, is one of the most important discovery channels for Higgs particles in the Standard Model (SM) and its supersymmetric extension at the LHC pp collider . The theoretical prediction of the corresponding cross section has been improved by including the complete next-to-leading order QCD corrections. We review the status results for the leading order to the partonic process and present calculations for the integrated cross-section in both single and double parton scattering collisions.

Figures (2)

• Figure 1: Leading order cross section (pb) for Higgs boson production in association with bottom quarks as a function of the Higgs boson mass at the LHC.
• Figure 2: Total cross section for Higgs boson associated with bottom quarks in the SM as a function of the Higgs boson mass at LHC energy.