Pomeron and Reggeon contributions to elastic proton-proton and proton-antiproton scattering in holographic QCD
Zhibo Liu, W. Xie, Akira Watanabe
Abstract
The total and differential cross sections of elastic proton-proton and proton-antiproton scattering are studied in a holographic QCD model, considering the Pomeron and Reggeon exchanges in the Regge regime. In our model setup, the Pomeron and Reggeon exchanges are described by the Reggeized spin-2 glueball and vector meson propagators, respectively. How those contributions change with the energy is explicitly shown, focusing on the contribution ratios. The adjustable parameters included in the model are determined with the experimental data, and it is presented that the resulting total and differential cross sections are consistent with the data in a wide kinematic region.
Topics & Concepts
PhysicsPomeronAntiprotonParticle physicsQuantum chromodynamicsProtonNuclear physicsGlueballScatteringElastic scatteringHadronMesonQuantum mechanicsBlack Holes and Theoretical PhysicsQuantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studies