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

Journal Article · · Physics Letters. B
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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.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
STAR Collaboration
Grant/Contract Number:
FG02-94ER40865; AC02-05CH11231; SC00112704
OSTI ID:
1225772
Alternate ID(s):
OSTI ID: 1235884; OSTI ID: 1378352; OSTI ID: 1666265
Report Number(s):
BNL-111722-2016-JA; S0370269315007947; PII: S0370269315007947
Journal Information:
Physics Letters. B, Journal Name: Physics Letters. B Vol. 751 Journal Issue: C; ISSN 0370-2693
Publisher:
ElsevierCopyright Statement
Country of Publication:
Netherlands
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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