Exclusive Photoproduction of Hard Dijets and Magnetic Susceptibility of the QCD Vacuum

2002/06/28 by V. M. Braun, Stefan Gottwald, S. Gottwald +5 · 5 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevlett.89.172001

published as Phys.Rev.Lett. 89 (2002) 172001 · 4 pages, 4 figures

arxiv created 2002/06/28 · openalex publication_date 2002/10/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We argue that coherent production of hard dijets by linearly polarized real photons can provide direct evidence for chirality violation in hard processes, the first measurement of the magnetic susceptibility of the quark condensate and the photon distribution amplitude. It can also serve as a sensitive probe of the generalized gluon parton distribution. Numerical calculations are presented for HERA kinematics.

Citations

• Quark-Antiquark Production in DIS Diffractive Dissociation

Cited by

• Photon distribution amplitudes in nonlocal chiral quark model
• Probing Transversity GPDs in Photo and Electroproduction of Two Vector Mesons
• Probing the Nucleon’s Transversity and the Photon’s Distribution Amplitude in Lepton Pair Photoproduction
• Exclusive diffractive electroproduction of dijets in collinear factorization
• Magnetic susceptibility of QCD at zero and at finite temperature from the lattice