Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-07-08
Int.J. of Mod.Phys.E 21, No. 2 (2012) 1250014
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 9 figures
Scientific paper
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.
Ahmadov Azar I.
Dadashov E. A.
Nagiyev Sh. M.
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