TY - JOUR
T1 - Gluon recombination in high parton density QCD
T2 - Inclusive pion production
AU - Li, Yang
AU - Tuchin, Kirill
PY - 2007/4/19
Y1 - 2007/4/19
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevD.75.074022
DO - 10.1103/PhysRevD.75.074022
M3 - Article
AN - SCOPUS:34247352329
SN - 1550-7998
VL - 75
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 074022
ER -