Odderon-Pomeron Interference

Abstract

We show that the asymmetry in the fractional energy of charm versus anticharm jets produced in high energy diffractive photoproduction is sensitive to the interference of the Odderon $(C=-)$ and Pomeron $(C=+)$ exchange amplitudes in QCD. We predict the dynamical shape of the asymmetry in a simple model and estimate its magnitude to be of the order 15% using an Odderon coupling to the proton which saturates constraints from proton-proton vs. proton-antiproton elastic scattering. Measurements of this asymmetry at HERA could provide firm experimental evidence for the presence of Odderon exchange in the high energy limit of strong interactions.

12 pages, 4 figures, Minor corrections, Main results unchanged, Contribution from photon exchange added, Numerical estimates updated and uncertainties clarified. To appear in Physics Letters B

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• Hard Pomeron-Odderon interference effects in the production of pi^+pi^- pairs in high energy gamma-gamma collisions at the LHC
• Probing the Odderon in coherent hadron - hadron interactions at CERN LHC
• The odderon and spin-flip dependence of high energy proton-proton scattering
• Nonlinear evolution of pomeron and odderon in momentum space
• Searching for the odderon in $pp\to pp{K}^{+}{K}^{-}$ and $pp\to pp{\mu }^{+}{\mu }^{-}$ reactions in the $\varphi (1020)$ resonance region at the LHC
• The Perturbative Odderon in Quasidiffractive Photon-Photon Scattering
• Physics Opportunities at a Photon-Photon Collider
• Photon-Odderon interference in exclusive ${\chi }_c$ charmonium production at the Electron-Ion Collider
• High Energy Photon-Photon Collisions at a Linear Collider
• Pomeron-Odderon interference effects in electroproduction of ${\pi }^{+}{\pi }^{-}$
• The ALICE detector and trigger strategy for diffractive and electromagnetic processe
• Single spin asymmetry in forward $pA$ collisions from Pomeron-Odderon interference
• Charge and Spin Asymmetries from Pomeron-Odderon Interference
• Jet Asymmetry in High Energy Diffractive Production
• Searching for the Odderon in the diffractive $f_2(1270)$ photoproduction at $pA$ collisions