Gluon EMC effect and fractional energy loss in Upsilon production in dAu collisions at RHIC

Details Gluon EMC effect and fractional energy loss in Upsilon production in dAu collisions at RHIC Gluon EMC effect and fractional energy loss in Upsilon production in dAu collisions at RHIC

2011-10-23

arxiv.org/abs/1110.5047v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 3 figures, LaTeX

Scientific paper

We demonstrate that the nuclear modification factor R^Upsilon_dAu measured at RHIC can only be reproduced once two supplemental Cold Nuclear Matter effects are taken into account. At backward rapidities, the visible suppression of R^Upsilon_dAu hints at the presence of a gluon EMC effect, analogous to the quark EMC effect -- but likely stronger. At forward and mid rapidities, the data can only be accounted for by a fractional energy loss, recently revived in the literature. Our conclusions do not depend on the detail of the nuclear parton distributions. We thus argue that this may be the first observation of a gluon EMC effect stronger than the quark one.

Affiliated with

Also associated with

No associations

Rating

Gluon EMC effect and fractional energy loss in Upsilon production in dAu collisions at RHIC 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 Gluon EMC effect and fractional energy loss in Upsilon production in dAu collisions at RHIC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gluon EMC effect and fractional energy loss in Upsilon production in dAu collisions at RHIC will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-526867