Pomeron and Odderon Contributions at LHC Energies

Abstract

We consider the first LHC data for pp collisions in the framework of Regge theory. The integral cross sections and inclusive densities of secondaries are determined by the Pomeron exchange, and we present the corresponding predictions for them. The first measurements of inclusive densities in midrapidity region are in agreement with these predictions. The possible contribution of Odderon (Reggeon with alpha(Odd)(0) ~ 1 and negative signature) exchange to the differences in the inclusive spectra of particle and antiparticle in the central region could be significant at LHC energies. The first data of ALICE Collaboration are consistent with a very small Odderon contribution. Probably, further LHC data will definitely settle the question of the Odderon existence.

31 pages, 18 figures, and 6 tables

References in corpus (3)

• Extremely red stellar objects revealed by IPHAS
• Odderon Effects in pp Collisions: Predictions for LHC Energies
• Possible Odderon Effects in Hadron-Nucleon Scattering

Cited by in corpus (5)

• Mid-rapidity anti-baryon to baryon ratios in pp collisions at $\sqrt{s}$ = 0.9, 2.76 and 7 TeV measured by ALICE
• Measurement of prompt hadron production ratios in $pp$ collisions at $\sqrt{s}=$ 0.9 and 7 TeV
• Feynman scaling violation on baryon spectra in pp collisions at LHC and cosmic ray energies
• Particle Production in the Central Region at LHC Energies
• Feynman scaling violation due to baryon number diffusion in rapidity space