Exclusive Higgs boson production at the LHC: hard rescattering corrections

Abstract

We examine, as a correction to the central exclusive Higgs boson production in $pp$ collisions at the LHC, the rescattering of gluonic ladders off the proton. As usual, at the lowest order the hard part of this process can be described as a fusion of two hard gluonic ladders. We calculate corrections to this hard amplitude which are due to rescattering of these ladders. These corrections, which contain high mass diffractive excitations of the proton, have not yet been taken into account by the usual soft survival probabilities. We find that the correction due to the exchange of a single hard rescattering is negative, large and infrared sensitive. As a first step towards a more reliable description we therefore replace the rescattering exchange by a unitarized amplitude using the BK equation which generates the saturation scale $Q_s(x)$. We also include a soft gap survival probability factor. We discuss the results and outline possible future strategies.

arXiv comment28 pages, 9 figures

References in corpus (53)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Operator expansion for high-energy scattering
• Small-x F_2 Structure Function of a Nucleus Including Multiple Pomeron Exchanges
• Saturation Effects in Deep Inelastic Scattering at low $Q^2$ and its Implications on Diffraction
• BFKL pomeron in the next-to-leading approximation
• Unitarization of the BFKL Pomeron on a Nucleus
• Saturation in Diffractive Deep Inelastic Scattering
• Energy Scale(s) and Next-to-leading BFKL Equation
• Saturation and BFKL dynamics in the HERA data at small x
• Unintegrated parton distributions
• Small-x physics in perturbative QCD
• A resummation of large sub-leading corrections at small x
• Geometric scaling as traveling waves
• Prospects for New Physics observations in diffractive processes at the LHC and Tevatron
• Renormalization Group Improved Small-x Equation
• Off-diagonal distributions fixed by diagonal partons at small $x$ and $\xi$
• A unified BFKL and GLAP description of $F_2$ data
• Traveling wave fronts and the transition to saturation
• Soft diffraction and the elastic slope at Tevatron and LHC energies: a multi-Pomeron approach
• Can the Higgs be seen in rapidity gap events at the Tevatron or the LHC?
• On solutions of the Balitsky-Kovchegov equation with impact parameter
• The BFKL Equation at Next-to-Leading Order and Beyond
• Diffusion into infra-red and unitarization of the BFKL pomeron
• Unintegrated parton distributions and prompt photon hadroproduction
• Probabilities of rapidity gaps in high energy interactions
• Universality and tree structure of high energy QCD
• Parton densities and dipole cross-sections at small x in large nuclei
• Ways to detect a light Higgs boson at the LHC
• Screening effects in the ultrahigh energy neutrino interactions
• Extending the study of the Higgs sector at the LHC by proton tagging
• Central exclusive diffractive production as a spin--parity analyser: from hadrons to Higgs
• Nonlinear QCD Evolution: Saturation without Unitarization
• Unintegrated gluon distribution from modified BK equation
• Nucleus-nucleus scattering in perturbative QCD with $N_c\to \infty$
• No Froissart Bound from Gluon Saturation
• Towards a new global QCD analysis: low x DIS data from non-linear evolution
• The rapidity gap Higgs signal at LHC
• Conformal invariant pomeron interaction in the perurbative QCD with large N_c
• Nucleus-nucleus interaction in the perurbative QCD
• Physics with tagged forward protons at the LHC
• The survival probability of large rapidity gaps in a three channel model
• Inclusive Higgs boson and dijet production via Double Pomeron exchange
• Particle Production in a Hadron Collider Rapidity Gap: The Higgs Case
• Hunting a light CP-violating Higgs via diffraction at the LHC
• On the Triple Pomeron Vertex in Perturbative QCD
• Diffractive Higgs Production: Myths and Reality
• Diffractive Higgs boson production at the Tevatron and LHC
• Sensitivity to the Standard Model Higgs Boson in Exclusive Double Diffraction
• Popping out the Higgs boson off vacuum at Tevatron and LHC
• Can an invisible Higgs boson be seen via diffraction at the LHC?
• Soft Double-Diffractive Higgs Production at Hadron Colliders
• Exclusive Higgs and dijet production by double pomeron exchange. The CDF upper limits
• Diffractive Higgs bosons and prompt photons at hadron colliders

Cited by in corpus (28)

• Central Exclusive Particle Production at High Energy Hadron Colliders
• A QCD motivated model for soft interactions at high energies
• Soft processes at the LHC, II: Soft-hard factorization breaking and gap survival
• Central exclusive chi_c meson production at the Tevatron revisited
• Leading neutron spectra
• Central Exclusive Production in QCD
• Central exclusive production of scalar χ_c meson at the Tevatron, RHIC and LHC energies
• Generalized parton distributions and rapidity gap survival in exclusive diffractive pp scattering
• The next-to-leading order Higgs impact factor in the infinite top-mass limit
• Early LHC measurements to check predictions for central exclusive production
• Ultraforward production of a charmed hadron plus a Higgs boson in unpolarized proton collisions
• Solving effective field theory of interacting QCD pomerons in the semi-classical approximation
• Searching for the triplet Higgs sector via central exclusive production at the LHC
• Effective action for reggeized gluons, classical gluon field of relativistic color charge and color glass condensate approach
• $pp\to pp{\eta }^{\prime }$ reaction at high energies
• Drell-Yan diffraction: breakdown of QCD factorisation
• Survival probability for high mass diffraction
• Evidence of quasi-partonic higher-twist effects in deep inelastic scattering at HERA at moderate $Q^2$
• Prompt photon production in double-Pomeron-exchange events at the LHC
• Diffractive di-jet production at the LHC with a Reggeon contribution
• Reflective scattering effects in double-pomeron exchange processes
• The BFKL Pomeron Calculus in zero transverse dimensions: diffractive processes and survival probability for central diffractive production
• Diffractive Bremsstrahlung in Hadronic Collisions
• Survival probability in diffractive Higgs production in high density QCD
• Diffractive Higgs boson photoproduction in Ultraperipheral Collisions at LHC
• Enhancement of prompt photons in ultrarelativistic proton-proton collisions from nonlinear gluon evolution at small-$x$
• Estimations for the Higgs boson production with QCD and EW corrections in exclusive events at the LHC
• Summary of the 'Diffraction and Vector Mesons' working group at DIS06