Jet-Hadron Correlations in sqrt{s_{NN}} = 200 GeV p+p and Central Au+Au Collisions

Jet-Hadron Correlations in sqrt{s_{NN}} = 200 GeV p+p and Central Au+Au Collisions

Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au+Au and p+p collisions at \(\sqrt{s_{\text{NN}}} = 200 \text{GeV}\) in STAR are presented. The trigger jet population in Au+Au collisions is biased towards jets that have not interacted w...

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Veröffentlicht in:arXiv.org 2014-05
Hauptverfasser: Adamczyk, L, Adkins, J K, Arkhipkin, D, Aschenauer, E C, Averichev, G S, Burton, T P, Cervantes, M C, Chen, H F, Christie, W, Cui, X, Das, S, A Davila Leyva, Derevschikov, A A, Draper, J E, Efimov, L G, Eppley, G, Fatemi, R, Filip, P, Finch, E, Gangadharan, D R, Gliske, S, Guryn, W, Haag, B, L-X Han, Hirsch, A, Huang, B, Humanic, T J, Kauder, K, Ke, H W, Keane, D, Kechechyan, A, Kikola, D P, Koetke, D D, Koralt, I, Kravtsov, P, Landgraf, J M, Lauret, J, Lisa, M A, Liu, F, Luo, X, Majka, R, Margetis, S, Markert, C, Masui, H, Matis, H S, McDonald, D, McShane, T S, Mohanty, B, Morozov, D A, Nayak, T K, Nelson, J M, Nigmatkulov, G, Odyniec, G, K Oh, Oldag, E W, Perkins, C, Peryt, W, Poljak, N, Putschke, J, Qiu, H, Riley, C K, Rogachevskiy, O V, Rusnakova, O, Sakrejda, I, Schmitz, N, Shahaliev, E, Sharma, B, Shi, S S, Shou, Q Y, Sichtermann, E P, Solanki, D, Sorensen, P, Srivastava, B, Stanislaus, T D S, Strikhanov, M, Stringfellow, B, Sumbera, M, Tang, A H, Tarnowsky, T, Thomas, J H, Tlusty, D, Underwood, D G, G van Nieuwenhuizen, Vandenbroucke, M, Vasconcelos, G M S, Vertesi, R, Viyogi, Y P, Vossen, A, Wada, M, Wang, H, Webb, J C, Wu, Y F, H Xu, Yang, C, N Yu, Zawisza, Y, Zhang, J B, Zhang, Y, Zhang, Z P, Zhu, Y H
Format: Artikel
Sprache:eng
Schlagworte:
Energy dissipation
Hadrons
Ionic collisions
Physics - Nuclear Experiment
Recoil
Transverse momentum
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Zusammenfassung:Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au+Au and p+p collisions at \(\sqrt{s_{\text{NN}}} = 200 \text{GeV}\) in STAR are presented. The trigger jet population in Au+Au collisions is biased towards jets that have not interacted with the medium, allowing easier matching of jet energies between Au+Au and p+p collisions while enhancing medium effects on the recoil jet. The associated hadron yield of the recoil jet is significantly suppressed at high transverse momentum (\(p_{\text{T}}^{\text{assoc}}\)) and enhanced at low \(p_{\text{T}}^{\text{assoc}}\) in 0-20% central Au+Au collisions compared to p+p collisions, which is indicative of medium-induced parton energy loss in ultrarelativistic heavy-ion collisions.
ISSN:2331-8422
DOI:10.48550/arxiv.1302.6184