Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2012-03-28
Physics
High Energy Physics
High Energy Physics - Phenomenology
20 pages, 7 figures
Scientific paper
We calculate inclusive hadron productions in pA collisions in the small-x saturation formalism at one-loop order. The differential cross section is written into a factorization form in the coordinate space at the next-to-leading order, while the naive form of the convolution in the transverse momentum space does not hold. The rapidity divergence with small-x dipole gluon distribution of the nucleus is factorized into the energy evolution of the dipole gluon distribution function, which is known as the Balitsky-Kovchegov equation. Furthermore, the collinear divergences associated with the incoming parton distribution of the nucleon and the outgoing fragmentation function of the final state hadron are factorized into the splittings of the associated parton distribution and fragmentation functions, which allows us to reproduce the well-known DGLAP equation. The hard coefficient function, which is finite and free of divergence of any kind, is evaluated at one-loop order.
Chirilli Giovanni A.
Xiao Bo-Wen
Yuan Fang-Fang
No associations
LandOfFree
Inclusive Hadron Productions in pA Collisions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Inclusive Hadron Productions in pA Collisions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inclusive Hadron Productions in pA Collisions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-271734