Dihadron momentum imbalance and correlations in d+Au collisions

Details Dihadron momentum imbalance and correlations in d+Au collisions Dihadron momentum imbalance and correlations in d+Au collisions

2011-12-27

arxiv.org/abs/1112.6021v1

Phys.Rev. D85 (2012) 054024

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 6 figures

Scientific paper

10.1103/PhysRevD.85.054024

We calculate in perturbative QCD the transverse momentum imbalance of dijet and dihadron production in high energy p+A (d+A) collisions. We evaluate the effect of both initial- and final-state multiple scattering, which determines the strength of this transverse momentum imbalance. Combining this new result with the suppression of the cross section in d+Au collisions, which arises from cold nuclear matter energy loss and coherent power corrections, we are able to describe the dihadron correlations measured by both PHENIX and STAR collaborations at RHIC, including mid-mid, mid-forward, and forward-forward rapidity hadron pairs.

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