Meson wave functions from holographic QCD and the role of infrared renormalons in proton-proton collisions
ANNALS OF PHYSICS, cilt.327, sa.6, ss.1472-1483, 2012 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 327 Sayı: 6
- Basım Tarihi: 2012
- Doi Numarası: 10.1016/j.aop.2012.02.008
- Dergi Adı: ANNALS OF PHYSICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1472-1483
- Anahtar Kelimeler: Higher twist, Holographic QCD, Infrared renormalons, QUANTUM CHROMODYNAMICS, EXCLUSIVE PROCESSES, ORDER
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Karadeniz Teknik Üniversitesi Adresli: Hayır
Özet
We calculate the contribution of the higher-twist Feynman diagrams to the large-p(T) inclusive pion production cross section in proton-proton collisions in the cases of the running and frozen coupling approaches within holographic QCD. The structure of the infrared renormalon singularities of the higher-twist subprocess cross section and its resummed expression are found. We compare the resummed higher-twist cross sections with the ones obtained in the framework of the frozen coupling approximation and the leading-twist cross section. We discuss the phenomenological consequences of possible higher-twist contributions to the pion production in proton-proton collisions within holographic QCD. (C) 2012 Elsevier Inc. All rights reserved.