Inelastic cross sections, overlap functions and Cq moments from ISR to LHC energies in proton interactions

Abstract

We investigated the energy dependence of the parton-parton inelastic cross sections, parton- parton inelastic overlap functions and the Cq moments in proton interactions from 10 to 14000 GeV. The used approach is based on a phenomenological procedure where elastic and inelastic proton observables are described in a connected way by exploring the unitarity of S- Matrix. Applying a Quantum Chromodynamics inspired eikonal model, that contains contributions of the quark-quark, quark-gluon and gluon-gluon interactions, theoretical predictions on inelastic cross sections and Cq moments are compared with measurements showing successfully description of the experimental data. The KNO hypothesis violation is discussed as a consequence of the semihard contribution to the multiparticle production in the interactions, in accordance to several experimental and theoretical previous results. Prediction to the ratio elastic to total cross sections as a function of the collision energy is presented and also compared with the experimental information.

6 figures, Journal of Physics G: Nuclear and Particle Physics, 2017

References in corpus (10)

• Measurement of the inelastic proton-proton cross section at sqrt(s) = 7 TeV
• The Froissart bound for inelastic cross-sections
• Diffractive dissociation re-visited for predictions at the LHC
• Total cross-section and rapidity gap survival probability at the LHC through an eikonal with soft gluon resummation
• QCD effective charge and the structure function $F_2$ at small-$x$
• Survival probability of large rapidity gaps in a QCD model with a dynamical infrared mass scale
• $\gamma p$ and $\gamma \gamma$ scattering from $\bar{p}p$, $pp$ forward amplitudes in a QCD eikonal model with a dynamical gluon mass
• Multiple Parton Interactions in Hadron Collisions and Diffraction
• The possibility that the triple-Pomeron coupling vanishes at q_t=0
• On the multiplicity distributions at LHC energies

Cited by in corpus (1)

• Energy dependence of the inelasticity in $pp/p\bar{p}$ collisions from experimental information on charged particle multiplicity distributions