Direct Photon Production in Pion-Proton Collisions
24th International Conference on Integrable Systems and Quantum Symmetries (ISQS), Prague, Çek Cumhuriyeti, 14 - 18 Haziran 2016, cilt.804, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası: 804
- Doi Numarası: 10.1088/1742-6596/804/1/012001
- Basıldığı Şehir: Prague
- Basıldığı Ülke: Çek Cumhuriyeti
- Karadeniz Teknik Üniversitesi Adresli: Evet
Özet
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.