Meson wave functions from holographic QCD and the role of infrared renormalons in proton-proton collisions

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Ahmadov A. I., AYDIN C., KESKIN F.

ANNALS OF PHYSICS, cilt.327, sa.6, ss.1472-1483, 2012 (SCI-Expanded) identifier identifier

  • 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
  • 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.