Manifestation of proton structure in the initial-state anisotropies in high-energy proton-proton collisions

Abstract

Ridge-like correlations in high-energy proton-proton collisions reported by the CMS collaboration suggest a collective flow that resembles the one in heavy-ion collisions. If the hydrodynamic description is valid then the effect results from the initial anisotropy of the colliding matter which depends on the structure of protons. Following recent theoretical developments, we propose several phenomenological models of the proton structure and calculate the anisotropy coefficients using the Monte Carlo Glauber model. Our estimates suggest that the event multiplicity dependence allows one to discriminate between different proton models.

15 pages, 7 figures, submitted to Lith. J. Phys, corrected plots

References in corpus (8)

• Glauber Modeling in High Energy Nuclear Collisions
• The centrality dependence of elliptic flow, the hydrodynamic limit, and the viscosity of hot QCD
• Measurement of the inelastic proton-proton cross section at sqrt(s) = 7 TeV
• Elliptic flow in proton-proton collisions at 7 TeV
• Observation of a "Ridge" correlation structure in high multiplicity proton-proton collisions: A brief review
• Possible multiparticle ridge-like correlations in very high multiplicity proton-proton collisions
• Correlations in the Monte Carlo Glauber model
• Collective flow in (anti)proton-proton collision at Tevatron and LHC

Cited by in corpus (4)

• Glauber model for small system using anisotropic and inhomogeneous density profile of proton
• Effective particles in quantum field theory
• Proton structure in high-energy high-multiplicity p-p collisions
• The Ridge Effect, Azimuthal Correlations, and other Novel Features of Gluonic String Collisions in High Energy Photon-Mediated Reactions