Higgs and SUSY Particle Production at Hadron Colliders

TL;DR

The paper surveys the theoretical status of Higgs boson and SUSY particle production at hadron colliders, emphasizing the role of higher-order QCD corrections. It details gluon fusion as the dominant Higgs production mode at the LHC, discusses ttH and bbH channels in both SM and MSSM contexts, and documents the impact of NNLO/NLO corrections and resummation on rate predictions. It compiles SUSY production across squarks, gluinos, stops, charginos, and neutralinos, highlighting sizable NLO corrections and improved scale stability, which in turn affects mass bounds and experimental strategies. Overall, the work underlines the necessity of precise higher-order calculations for reliable collider phenomenology and points to available computational tools for practitioners.

Abstract

The theoretical status of Higgs boson and supersymmetric particle production at hadron colliders is reviewed with particular emphasis on recent results and open problems.

Figures (5)

• Figure 1: Scale dependence of the $K$-factor at the LHC. Lower curves for each pair are for $\mu_R = 2M_H$, $\mu_F=M_H/2$, upper curves are for $\mu_R =M_H/2$, $\mu_F=2M_H$. The $K$-factor is computed with respect to the LO cross section at $\mu_R = \mu_F =M_H$. From Ref. glufusnnlo.
• Figure 2: The cross section for $pp/p\bar{p}\to t\bar{t}H\;+\;X$ at the Tevatron and LHC in LO and NLO approximation, with the renormalization and factorization scales set to $\mu=m_t+M_H/2$.
• Figure 3: Transverse mass distributions of the bottom quark in $b\bar{b}H$ production at the Tevatron and the LHC. We have adopted CTEQ5M1 parton densities and a bottom mass of $m_b=4.62$ GeV. The solid lines show the full LO result from $q\bar{q},gg\to b\bar{b}H$ and the dashed lines the factorized collinear part of Eq. (\ref{['eq:bfact']}) which is absorbed in the bottom parton density. The upper curves are multiplied with the factor $M_{Tb}$ of the asymptotic behavior, which is required by factorizing bottom densities.
• Figure 4: K factor of the cross sections for gluinos produced in association with the gauginos $\chi^0_2$ and $\chi^\pm_1$ at the upgraded Tevatron (left) and the LHC (right). Parton densities: CTEQ4L (LO) and CTEQ4M (NLO) with the renormalization/factorization scale $Q=(m_{\tilde{g}}+m_\chi)/2$.
• Figure 5: Scale dependence of the cross sections of gluinos produced in association with $\chi^0_2$ at the upgraded Tevatron (left) and the LHC (right). Parton densities: CTEQ4L (LO) and CTEQ4M (NLO) with the renormalization/factorization scale $Q$ varied in units of the average mass $m=(m_{\tilde{g}}+m_\chi)/2$.