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 i...

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Veröffentlicht in:	Physics letters. B 2015-12, Vol.751 (C), p.233-240
Hauptverfasser:	Adkins, J.K., Aparin, A., Bhattarai, P., Bielcikova, J., Bland, L.C., Bunzarov, I., Cervantes, M.C., Chattopadhyay, S., Chen, X., Cheng, J., Das, S., Didenko, L., Dunlop, J.C., Eppley, G., Evdokimov, O., Feng, Z., Fisyak, Y., Garand, D., Gupta, S., Gupta, A., Hamad, A., He, L., Heppelmann, S., Hoffmann, G.W., Huang, B., Huang, X., Huck, P., Jang, H., Ke, H.W., Kechechyan, A., Kisiel, A., Kochenda, L., Koetke, D.D., Kosarzewski, L.K., Kraishan, A.F., Lamont, M.A.C., Landry, K.D., Li, X., Li, Z.M., Lisa, M.A., Ma, Y.G., Ma, R., Markert, C., Meehan, K., Minaev, N.G., Mishra, D., Mohanty, B., Mondal, M.M., Nurushev, S.B., Ogawa, A., Perkins, C., Qiu, H., Quintero, A., Ray, R.L., Rogachevskiy, O.V., Roy, A., Rusnak, J., Sahoo, N.R., Sarkar, A., Schmitz, N., Seger, J., Shah, N., Shao, M., Shou, Q.Y., Sichtermann, E.P., Simko, M., Smirnov, N., Song, L., Stanislaus, T.D.S., Stringfellow, B., Sumbera, M., Sun, Y., Surrow, B., Svirida, D.N., Szelezniak, M.A., Thomas, J.H., Timmins, A.R., Todoroki, T., Tripathy, S.K., Tsai, O.D., Ullrich, T., Underwood, D.G., Vandenbroucke, M., Vossen, A., Wang, F., Wang, H., Wang, Y., Webb, J.C., Wissink, S.W., Xie, W., Xu, H., Xu, Q.H., Yang, S., Yang, Y., Yi, L., Yip, K., Zbroszczyk, H., Zhong, C., Zhu, X., Zoulkarneeva, Y.
Format:	Artikel
Sprache:	eng
Schlagworte:	Nuclear Experiment NUCLEAR PHYSICS AND RADIATION PHYSICS Physics Relativistic Heavy Ion Collider
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Zusammenfassung:	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.
ISSN:	0370-2693 1873-2445
DOI:	10.1016/j.physletb.2015.10.037