The charge asymmetry from pomeron–odderon interference in hard diffractive -electroproduction

2002/06/30 by Ph. Hägler, Ph. Hagler, B. Pire +3 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/s0375-9474(02)01223-x

published as Nucl.Phys. A711 (2002) 232-235 · 4 pages, 3 .eps-figures; Talk given by Ph.H. at the QCD-N'02 workshop in Ferrara; Typos corrected, one reference added

arxiv created 2002/07/08 · openalex publication_date 2002/12/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The interference of Pomeron and Odderon amplitudes gives rise to a charge asymmetry in the diffractive electroproduction of a pi+pi- -pair. We calculate this charge asymmetry in perturbative QCD in the Born approximation and on the leading Q²-level. The numerical evaluation shows a sizeable asymmetry in an experimentally accessible kinematical region. We find a characteristic m_pi+pi -dependence mainly dictated by the relevant Breit-Wigner-amplitudes and the corresponding phase-shifts.

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• Hard Pomeron-odderon interference effects in the production ofπ+π−pairs in high energyγγcollisions at the LHC