Yang Li 2008 J. Phys. G: Nucl. Part. Phys. 35 104051 doi:10.1088/0954-3899/35/10/104051
Yang Li
Show affiliationsWe argue that the collinear factorization of the fragmentation functions in high-energy nuclear collisions breaks down at transverse momenta pT
Qs/g due to high parton densities in the colliding hadrons and/or nuclei. We find that gluon recombination dominates in that pT region. We calculate the inclusive cross section for π meson and nucleon production using the low-energy theorems for the scale anomaly in QCD, and compare our quantitative baryon-to-meson ratio to the RHIC data.
24.85.+p Quarks, gluons, and QCD in nuclear reactions
27.80.+w 190(less-than-or-equal-to)A(less-than-or-equal-to)219
Issue 10 (October 2008)
Received 31 March 2008
Published 17 September 2008
Yang Li 2008 J. Phys. G: Nucl. Part. Phys. 35 104051
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