On radiative QCD backgrounds to exclusive H -> b bbar production at the LHC and a photon collider
arXiv:hep-ph/0607134 · doi:10.1140/epjc/s10052-006-0027-3
Abstract
Central exclusive Higgs boson production, pp -> p + H + p, at the LHC and s-channel resonant Higgs production in the photon-collider option of the ILC can provide a very important contribution to the comprehensive study of the Higgs sector. Especially attractive is the b bbar Higgs decay mode, which for certain MSSM scenarios may become the discovery channel in exclusive Higgs production at the LHC and the Photon Collider (PC). Strongly suppressed and controllable backgrounds is an obvious requirement for the success of these exclusive measurements. One of the main sources of background comes from additional gluon radiation which leads to a three-jet b bbar g final state. We perform an explicit calculation of the subprocesses gg -> q qbar g and gamma gamma -> q qbar g, where the incoming particles are required to be in a J_z=0 state and the two gluons form a colour singlet, and investigate the salient properties of these potentially important background processes.
arXiv comment23 pages, 2 figures
References in corpus (46)
- Fusing Gauge Theory Tree Amplitudes Into Loop Amplitudes
- Multi-Parton Amplitudes in Gauge Theories
- Physics Interplay of the LHC and the ILC
- Prospects for New Physics observations in diffractive processes at the LHC and Tevatron
- Can the Higgs be seen in rapidity gap events at the Tevatron or the LHC?
- Soft diffraction and the elastic slope at Tevatron and LHC energies: a multi-Pomeron approach
- One-loop helicity amplitudes for all 2 -> 2 processes in QCD and N=1 supersymmetric Yang-Mills theory
- TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA
- Two-loop QCD corrections to massless quark-gluon scattering
- Loop Amplitudes in Pure Yang-Mills from Generalised Unitarity
- Double-diffractive processes in high-resolution missing-mass experiments at the Tevatron
- Ways to detect a light Higgs boson at the LHC
- Two-loop QED and QCD corrections to massless fermion-boson scattering
- Extending the study of the Higgs sector at the LHC by proton tagging
- Parton Distributions and the LHC: W and Z Production
- ExHuME: A Monte Carlo Event Generator for Exclusive Diffraction
- HERA and the LHC - A workshop on the implications of HERA for LHC physics: Proceedings - Part B
- Hunting a light CP-violating Higgs via diffraction at the LHC
- Three-jet final states and measuring the width of the Higgs at a photon linear collider
- QCD Corrections to Heavy Quark Pair Production in Polarized Collisions and the Intermediate Mass Higgs Signal
- Detecting the Standard Model Higgs Boson in the WW decay channel using forward proton tagging at the LHC
- Diffraction as a CP and Lineshape Analyzer for MSSM Higgs Bosons at the LHC
- Diffractive Higgs Production: Myths and Reality
- Higgs studies in polarized gamma-gamma collisions
- Higgs Boson Production at the Compton Collider
- Sensitivity to the Standard Model Higgs Boson in Exclusive Double Diffraction
- Studies for a Photon Collider at the ILC
- All-Orders Resummation of Leading Logarithmic Contributions to Heavy Quark Production in Polarized γγCollisions
- Light Higgs Production at a Photon Collider
- Multiplicity Difference between Heavy and Light Quark Jets Revisited
- Central jet production as a probe of the perturbative formalism for exclusive diffraction
- Heavy Quark Production at a Collider: the Effect of Large Logarithmic Perturbative Corrections
- Renormalization Group Improved Heavy Quark Production in Polarized γγCollisions
- A review of forward proton tagging at 420m at the LHC, and relevant results from the Tevatron and HERA
- 5-dimensional Quantum Gravity Effects in Exclusive Double Diffractive Events
- Gluon Radiation and Energy Losses in Top Quark Production
- Survival Probability of Large Rapidity Gaps
- Extended analysis of the MSSM Higgs boson production at the Photon Collider
- Diffractive W + 2 jet production: a background to exclusive H \to WW production at hadron colliders
- Diffractive Higgs production
- Higgs Physics at the Linear Collider
- The Photon collider at ILC: status, parameters and technical problems
- New Diffractive Results from the Tevatron
- Higgs-boson production at the Photon Collider at TESLA
- Higgs or dijet production in double rapidity gap events
- Supersymmetry at the PLC
Cited by in corpus (15)
- The FP420 R&D Project: Higgs and New Physics with forward protons at the LHC
- Exclusive physics at the LHC with SuperChic 2
- Central exclusive production within the Durham model: a review
- Detecting Higgs bosons in the bb decay channel using forward proton tagging at the LHC
- Review of Central Exclusive Production of the Higgs Boson Beyond the Standard Model
- Insight into Double-Pomeron-Exchange Higgs production and backgrounds
- Searching for the triplet Higgs sector via central exclusive production at the LHC
- Exclusive production of double mesons in hadronic collisions
- Exclusive MSSM Higgs production at the LHC after Run I
- QCD diffractive mechanism of exclusive pair production at high energies
- One-loop gg->bb(bar) effects in the main irreducible background to exclusive H->bb(bar) production at the LHC
- Resonance--Continuum Interference in Light Higgs Boson Production at a Photon Collider
- Radiative QCD backgrounds to exclusive H -> bb(bar) production: radiation from the screening gluon
- Turning the LHC Ring into a New Physics Search Machine
- BSM Higgs Studies at the LHC in the Forward Proton Mode