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

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. As a result, 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.
Authors:
 [1]
  1. AGH Univ. of Science and Technology, Cracow (Poland). et al.
Publication Date:
Report Number(s):
BNL-111722-2016-JA
Journal ID: ISSN 0370-2693; R&D Project: PO 004; KB0202012
Grant/Contract Number:
SC00112704; AC02-05CH11231
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 751; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Orgs:
STAR Collaboration
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Relativistic Heavy Ion Collider
OSTI Identifier:
1225772
Alternate Identifier(s):
OSTI ID: 1235884; OSTI ID: 1378352

Adamczyk, L. Di-hadron correlations with identified leading hadrons in 200 GeV Au + Au and d + Au collisions at STAR. United States: N. p., Web. doi:10.1016/j.physletb.2015.10.037.
Adamczyk, L. Di-hadron correlations with identified leading hadrons in 200 GeV Au + Au and d + Au collisions at STAR. United States. doi:10.1016/j.physletb.2015.10.037.
Adamczyk, L. 2015. "Di-hadron correlations with identified leading hadrons in 200 GeV Au + Au and d + Au collisions at STAR". United States. doi:10.1016/j.physletb.2015.10.037.
@article{osti_1225772,
title = {Di-hadron correlations with identified leading hadrons in 200 GeV Au + Au and d + Au collisions at STAR},
author = {Adamczyk, L.},
abstractNote = {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. As a result, 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.},
doi = {10.1016/j.physletb.2015.10.037},
journal = {Physics Letters. Section B},
number = C,
volume = 751,
place = {United States},
year = {2015},
month = {10}
}