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Di-hadron correlations with identified leading hadrons in 200 GeV Au+Au and d+Au collisions at STAR
Adamczyk, L Adkins, JK Agakishiev, G Aggarwal, MM Ahammed, Z Alekseev, I Aparin, A Arkhipkin, D Aschenauer, EC Averichev, GS
Adamczyk, L
Adkins, JK
Agakishiev, G
Aggarwal, MM
Ahammed, Z
Alekseev, I
Aparin, A
Arkhipkin, D
Aschenauer, EC
Averichev, GS
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Journal Article
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2015-12-17
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10.1016/j.physletb.2015.10.037
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© 2015 The Authors. 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.
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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
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