Di-hadron correlations with identified leading hadrons in 200 GeV Au + Au and d + Au collisions at STAR - INSPIRE

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Di-hadron correlations with identified leading hadrons in 200 GeV Au + Au and d + Au collisions at STAR

STAR

Collaboration

Oct 13, 2014

8 pages

Published in:

Phys.Lett.B 751 (2015) 233-240

Published: Dec 17, 2015

e-Print:

1410.3524 [nucl-ex]

DOI:

10.1016/j.physletb.2015.10.037

Experiments:

BNL-RHIC-STAR

View in:

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Abstract: (Elsevier)

The STAR Collaboration presents for the first time two-dimensional di-hadron correlations with identified leading hadrons in 200 GeV central Au + Au and minimum-bias d + Au collisions to explore hadronization mechanisms in the quark gluon plasma. The enhancement of the jet-like yield for leading pions in Au + Au data with respect to the d + Au reference and the absence of such an enhancement for leading non-pions (protons and kaons) are discussed within the context of a quark recombination scenario. The correlated yield at large angles, specifically in the ridge region , is found to be significantly higher for leading non-pions than pions. The consistencies of the constituent quark scaling, azimuthal harmonic model and a mini-jet modification model description of the data are tested, providing further constraints on hadronization.

dihadron: correlation
quark: recombination
quark gluon: plasma
quark: constituent
hadronization
STAR
correlation: wide-angle
scaling
heavy ion: scattering
deuteron

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