Journal
NUCLEAR PHYSICS A
Volume 748, Issue 3-4, Pages 627-640Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2004.10.031
Keywords
-
Categories
Ask authors/readers for more resources
We consider the influence of parton saturation in the color glass condensate on the back-to-back azimuthal correlations of high-P-T hadrons in pA (or dA) collisions. When both near-side and away-side hadrons are detected at mid-rapidity at RHIC energy, the effects of parton saturation are constrained to transverse momenta below the saturation scale P-T less than or equal to Q(s); in this case the back-to-back correlations do not disappear but exhibit broadening. In addition, the uncorrelated background reduces the apparent strength of back-to-back correlations in AA collisions. When near-side and away-side hadrons are separated by several units of rapidity, quantum evolution effects lead to the depletion of back-to-back correlations as a function of rapidity interval between the detected hadrons (at fixed PT). This applies to both pp and pA (or dA) collisions; however, due to the initial conditions provided by the color glass condensate, the depletion of the back-to-back correlations is significantly stronger in the pA case. An experimental study of this effect would thus help to clarify the origin of the high-PT hadron suppression at forward rapidities observed recently at RHIC. (C) 2004 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available