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Title: Exclusive Higgs boson production at the CERN LHC: Hard rescattering corrections

Abstract

We examine, as a correction to the central exclusive Higgs boson production in pp collisions at the Large Hadron Collider, 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 Balitsky-Kovchegov equation which generates the saturation scale Q{sub s}(x). We also include a soft gap survival probability factor. We discuss the results and outline possible future strategies.

Authors:
;  [1];  [1];  [2];  [3];  [2]
  1. II Institute for Theoretical Physics, University of Hamburg (Germany)
  2. (Poland)
  3. DESY Theory Group, Hamburg (Germany)
Publication Date:
OSTI Identifier:
20782970
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.73.093004; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; CERN LHC; CORRECTIONS; EXCITATION; EXCLUSIVE INTERACTIONS; HIGGS BOSONS; INCLUSIVE INTERACTIONS; INTERMEDIATE BOSONS; MASS; PARTICLE PRODUCTION; PROBABILITY; PROTON-PROTON INTERACTIONS; PROTONS; RESCATTERING

Citation Formats

Bartels, J., Bondarenko, S., Kutak, K., H. Niewodniczanski Institute of Nuclear Physics, Cracow, Motyka, L., and Institute of Physics, Jagellonian University, Cracow. Exclusive Higgs boson production at the CERN LHC: Hard rescattering corrections. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.73.093004.
Bartels, J., Bondarenko, S., Kutak, K., H. Niewodniczanski Institute of Nuclear Physics, Cracow, Motyka, L., & Institute of Physics, Jagellonian University, Cracow. Exclusive Higgs boson production at the CERN LHC: Hard rescattering corrections. United States. doi:10.1103/PHYSREVD.73.093004.
Bartels, J., Bondarenko, S., Kutak, K., H. Niewodniczanski Institute of Nuclear Physics, Cracow, Motyka, L., and Institute of Physics, Jagellonian University, Cracow. Mon . "Exclusive Higgs boson production at the CERN LHC: Hard rescattering corrections". United States. doi:10.1103/PHYSREVD.73.093004.
@article{osti_20782970,
title = {Exclusive Higgs boson production at the CERN LHC: Hard rescattering corrections},
author = {Bartels, J. and Bondarenko, S. and Kutak, K. and H. Niewodniczanski Institute of Nuclear Physics, Cracow and Motyka, L. and Institute of Physics, Jagellonian University, Cracow},
abstractNote = {We examine, as a correction to the central exclusive Higgs boson production in pp collisions at the Large Hadron Collider, 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 Balitsky-Kovchegov equation which generates the saturation scale Q{sub s}(x). We also include a soft gap survival probability factor. We discuss the results and outline possible future strategies.},
doi = {10.1103/PHYSREVD.73.093004},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 73,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}