Possible Odderon Effects in Hadron-Nucleon Scattering

Abstract

We consider the possible contribution of Odderon (Reggeon with α_{Odd}(0) \sim 1 and negative signature) exchange to the differences in the total cross sections of particle and antiparticle, to the ratios of real/imaginary parts of the elastic pp amplitude, and to the differences in the inclusive spectra of particle and antiparticle in the central region. The experimental differences in total cross sections of particle and antiparticle are compatible with the existence of the Odderon component but such a large Odderon contribution seems to be inconsistent with the values of Re/Im ratios. In the case of inclusive particle and antiparticle production the current energies and/or accuracy of the experimental data don't allow a clear conclusion.

24 pages, 12 figures, and 4 tables

References in corpus (1)

• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR

Cited by in corpus (5)

• Odderon Effects in pp Collisions: Predictions for LHC Energies
• Feynman scaling violation on baryon spectra in pp collisions at LHC and cosmic ray energies
• Pomeron and Odderon Contributions at LHC Energies
• Particle Production in the Central Region at LHC Energies
• Feynman scaling violation due to baryon number diffusion in rapidity space