Direct Photon Production in Pion-Proton Collisions

Ahmadov A. I., Aydin C., Uzun O.

24th International Conference on Integrable Systems and Quantum Symmetries (ISQS), Prague, Czech Republic, 14 - 18 June 2016, vol.804 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 804
  • Doi Number: 10.1088/1742-6596/804/1/012001
  • City: Prague
  • Country: Czech Republic
  • Karadeniz Technical University Affiliated: Yes


In this article we calculate the contribution of the higher-twist Feynman diagrams to the large-PT inclusive single direct photon production cross section in pi p collisions in case of the running coupling and frozen coupling approaches within holographic QCD. We determined the structure of infrared renormalon singularities of the higher-twist subprocess cross section. Also compared and analyzed the resummed higher-twist cross sections with the ones obtained in the framework of the frozen coupling approach.