Meson Production in Proton-Proton Collisions in the Naive Non-Abelianization Approximation and the Role of Infrared Renormalons

We calculate the "naive non-abelianization" (NNA) contributions of the higher-twist Feynman diagrams to the large-\(p_T\) inclusive pion production cross section in proton-proton collisions in the case of the running coupling and frozen coupling approaches. We compare the resummed "na...

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Bibliographic Details
Published in:arXiv.org 2012-03
Main Authors: Ahmadov, A I, Nagiyev, Sh M, Dadashov, E A
Format: Article
Language:English
Subjects:
Coupling
Cross-sections
Feynman diagrams
Particle collisions
Particle production
Protons
Singularities
Online Access:Get full text
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Summary:We calculate the "naive non-abelianization" (NNA) contributions of the higher-twist Feynman diagrams to the large-\(p_T\) inclusive pion production cross section in proton-proton collisions in the case of the running coupling and frozen coupling approaches. We compare the resummed "naive non-abelianization" higher-twist cross sections with the ones obtained in the framework of the frozen coupling approach and leading-twist cross section. The structure of infrared renormalon singularities of the higher twist subprocess cross section and it's resummed expression are found. We discuss the phenomenological consequences of possible higher-twist contributions to the pion production in proton-proton collisions in within NNA.
ISSN:2331-8422
DOI:10.48550/arxiv.1107.1562