Nuclear Modification to Parton Distribution Functions and Parton Saturation

Abstract

We introduce a generalized definition of parton distribution functions (PDFs) for a more consistent all-order treatment of power corrections. We present a new set of modified DGLAP evolution equations for nuclear PDFs, and show that the resummed ${\alpha }_s{A}^{1/3}/Q^2$-type of leading nuclear size enhanced power corrections significantly slow down the growth of gluon density at small-$x$. We discuss the relation between the calculated power corrections and the saturation phenomena.

4 pages, to appear in the proceedings of QM2006

References in corpus (8)

• Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions
• Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
• Quark Gluon Plasma an Color Glass Condensate at RHIC? The perspective from the BRAHMS experiment
• The PHOBOS Perspective on Discoveries at RHIC
• Parton Saturation at Small x and in Large Nuclei
• Resummed QCD Power Corrections to Nuclear Shadowing
• QCD and Rescattering in Nuclear Targets
• Structure functions and parton distributions

Cited by in corpus (8)

• EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
• Heavy Quarkonium Production at Collider Energies: Factorization and Evolution
• Dihadron momentum imbalance and correlations in d+Au collisions
• QCD evolution of naive-time-reversal-odd fragmentation functions
• Nuclear modification of vector boson production in proton-lead collisions at the LHC
• Transverse momentum imbalance of back-to-back particle production in p+A and e+A collisions
• Multiple scattering effects on inclusive particle production in the large-x regime
• Transverse momentum broadening at NLO and QCD evolution of $\hat{q}$