Proton-nucleus scattering and cross section fluctuations at RHIC and LHC

V. Guzey, M. Strikman

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)245-252
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume633
Issue number2-3
DOIs
StatePublished - Feb 9 2006

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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