Document Type

Article

Publication Version

Published Version

Publication Date

2007

Journal or Book Title

Physical Review D

Volume

75

Issue

7

First Page

074022-1

Last Page

074022-13

DOI

10.1103/PhysRevD.75.074022

Abstract

We argue that the collinear factorization of the fragmentation functions in high energy hadron and nuclei collisions breaks down at transverse momenta kT Qs/g due to high parton densities in the colliding hadrons and/or nuclei. We calculate, at next-to-leading order in projectile parton density and to all orders in target parton density, the double-inclusive cross-section for production of a pair of gluons in the scalar JPC=0++ channel. Using the low energy theorems of QCD we find the inclusive cross-section for π-meson production.

Comments

This article is from Physical Review D 75 (2007): 074022, doi: 10.1103/PhysRevD.75.074022. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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