Geometric Poisson distribution of photons produced in the ultrarelativistic hadronic collisions

Abstract

We show that the multiplicity distribution of photons produced with enhanced void probability in inelastic proton-proton collisions at $\sqrt{s}=$ 900 GeV, 2.76 TeV, and 7 TeV, measured at forward rapidities by the ALICE experiment at LHC, can be described by the geometric Poisson distribution. The traditionally used negative binomial distribution fails to reproduce the enhanced void probability and the shape of the modified combinants simultaneously. Our findings are relevant for the theoretical modeling of photon production processes in high-energy hadronic collisions.

arXiv comment6 pages, 2 figures, Accepted by EPJA

References in corpus (13)

• Saturation Effects in Deep Inelastic Scattering at low $Q^2$ and its Implications on Diffraction
• Saturation in Diffractive Deep Inelastic Scattering
• Deep inelastic scattering as a probe of entanglement
• Charged-particle multiplicity measurement in proton-proton collisions at $\sqrt{s}$ = 0.9 and 2.36 TeV with ALICE at LHC
• The Energy Dependence of the Saturation Momentum from RG Improved BFKL Evolution
• High energy QCD: multiplicity distribution and entanglement entropy
• Three-component multiplicity distribution, oscillation of combinants and properties of clans in $pp$ collisions at the LHC
• Intriguing properties of multiplicity distributions
• How to retrieve additional information from the multiplicity distributions
• Totally Chaotic Poissonian-Like Sources in Multiparticle Production Processes?
• Inclusive photon production at forward rapidities in proton-proton collisions at $\sqrt{s}$ = 0.9, 2.76 and 7 TeV
• Salient Features of High-Energy Multiparticle Distributions Learned from Exact Solutions of 1-d Ising Model
• A look at multiparticle production via modified combinants