TY - JOUR
T1 - Proton-nucleus scattering and cross section fluctuations at RHIC and LHC
AU - Guzey, V.
AU - Strikman, M.
N1 - Funding Information:
The work is supported by the Sofia Kovalevskaya Program of the Alexander von Humboldt Foundation (Germany) and DOE (USA).
PY - 2006/2/9
Y1 - 2006/2/9
N2 - We consider high-energy proton-heavy nucleus scattering within the framework of the Glauber-Gribov approximation and taking into account cross section fluctuations. Fixing parameters of the model for cross section fluctuations by the available data, we make predictions for the total, elastic and coherent diffractive dissociation proton-nucleus cross sections for the RHIC and LHC energy range. We predict a strong change of the A-dependence of diffraction dissociation from A0.42 at RHIC energies to A0.27 at LHC energies. Based on the obtained results, we discuss the approach of the interactions to the black body (unitarity) limit. We estimate the electromagnetic contribution to coherent pA diffraction and find that it dominates the coherent diffractive cross section on heavy nuclear targets in the LHC kinematics.
AB - We consider high-energy proton-heavy nucleus scattering within the framework of the Glauber-Gribov approximation and taking into account cross section fluctuations. Fixing parameters of the model for cross section fluctuations by the available data, we make predictions for the total, elastic and coherent diffractive dissociation proton-nucleus cross sections for the RHIC and LHC energy range. We predict a strong change of the A-dependence of diffraction dissociation from A0.42 at RHIC energies to A0.27 at LHC energies. Based on the obtained results, we discuss the approach of the interactions to the black body (unitarity) limit. We estimate the electromagnetic contribution to coherent pA diffraction and find that it dominates the coherent diffractive cross section on heavy nuclear targets in the LHC kinematics.
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U2 - 10.1016/j.physletb.2005.11.065
DO - 10.1016/j.physletb.2005.11.065
M3 - Article
AN - SCOPUS:30944433374
SN - 0370-2693
VL - 633
SP - 245
EP - 252
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 2-3
ER -