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Experimental studies of di-jets in Au + Au collisions using angular correlations with respect to back-to-back leading hadrons

  • L. Adamczyk
  • , G. Agakishiev
  • , M. M. Aggarwal
  • , Z. Ahammed
  • , A. V. Alakhverdyants
  • , I. Alekseev
  • , J. Alford
  • , C. D. Anson
  • , D. Arkhipkin
  • , E. Aschenauer
  • , G. S. Averichev
  • , J. Balewski
  • , A. Banerjee
  • , Z. Barnovska
  • , D. R. Beavis
  • , R. Bellwied
  • , M. J. Betancourt
  • , R. R. Betts
  • , A. Bhasin
  • , A. K. Bhati
    • H. Bichsel, J. Bielcik, J. Bielcikova, L. C. Bland, I. G. Bordyuzhin, W. Borowski, J. Bouchet, A. V. Brandin, S. G. Brovko, E. Bruna, S. Bültmann, I. Bunzarov, T. P. Burton, J. Butterworth, X. Z. Cai, H. Caines, M. Calderón De La Barca Sánchez, D. Cebra, R. Cendejas, M. C. Cervantes, P. Chaloupka, Z. Chang, S. Chattopadhyay, H. F. Chen, J. H. Chen, J. Y. Chen, L. Chen, J. Cheng, M. Cherney, A. Chikanian, W. Christie, P. Chung, J. Chwastowski, M. J.M. Codrington, R. Corliss, J. G. Cramer, H. J. Crawford, X. Cui, S. Das, A. Davila Leyva, L. C. De Silva, R. R. Debbe, T. G. Dedovich, J. Deng, R. Derradi De Souza, S. Dhamija, L. Didenko, F. Ding, A. Dion, P. Djawotho, X. Dong, J. L. Drachenberg, J. E. Draper, C. M. Du, L. E. Dunkelberger, J. C. Dunlop, L. G. Efimov, M. Elnimr, J. Engelage, G. Eppley, L. Eun, O. Evdokimov, R. Fatemi, S. Fazio, J. Fedorisin, R. G. Fersch, P. Filip, E. Finch, Y. Fisyak, C. A. Gagliardi, D. R. Gangadharan, F. Geurts, A. Gibson, S. Gliske, Y. N. Gorbunov, O. G. Grebenyuk, D. Grosnick, S. Gupta, W. Guryn, B. Haag, O. Hajkova, A. Hamed, L. X. Han, J. W. Harris, J. P. Hays-Wehle, S. Heppelmann, A. Hirsch, G. W. Hoffmann, D. J. Hofman, S. Horvat, B. Huang, H. Z. Huang, P. Huck, T. J. Humanic, L. Huo, G. Igo, W. W. Jacobs, C. Jena, E. G. Judd, S. Kabana, K. Kang, J. Kapitan, K. Kauder, H. W. Ke, D. Keane, A. Kechechyan, A. Kesich, D. P. Kikola, J. Kiryluk, I. Kisel, A. Kisiel, V. Kizka, S. R. Klein, D. D. Koetke, T. Kollegger, J. Konzer, I. Koralt, L. Koroleva, W. Korsch, L. Kotchenda, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, M. A.C. Lamont, J. M. Landgraf, S. Lapointe, J. Lauret, A. Lebedev, R. Lednicky, J. H. Lee, W. Leight, M. J. Levine, C. Li, L. Li, W. Li, X. Li, X. Li, Y. Li, Z. M. Li, L. M. Lima, M. A. Lisa, F. Liu, T. Ljubicic, W. J. Llope, R. S. Longacre, Y. Lu, X. Luo, A. Luszczak, G. L. Ma, Y. G. Ma, D. M.M.D. Madagodagettige Don, D. P. Mahapatra, R. Majka, O. I. Mall, S. Margetis, C. Markert, H. Masui, H. S. Matis, D. McDonald, T. S. McShane, S. Mioduszewski, M. K. Mitrovski, Y. Mohammed, B. Mohanty, M. M. Mondal, B. Morozov, M. G. Munhoz, M. K. Mustafa, M. Naglis, B. K. Nandi, Md Nasim, T. K. Nayak, J. M. Nelson, L. V. Nogach, J. Novak, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E. W. Oldag, R. A.N. Oliveira, D. Olson, P. Ostrowski, M. Pachr, B. S. Page, S. K. Pal, Y. X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, W. Peryt, P. Pile, M. Planinic, J. Pluta, D. Plyku, N. Poljak, J. Porter, A. M. Poskanzer, C. B. Powell, C. Pruneau, N. K. Pruthi, M. Przybycien, P. R. Pujahari, J. Putschke, H. Qiu, R. Raniwala, S. Raniwala, R. L. Ray, R. Redwine, R. Reed, C. K. Riley, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, J. F. Ross, L. Ruan, J. Rusnak, N. R. Sahoo, P. K. Sahu, I. Sakrejda, S. Salur, A. Sandacz, J. Sandweiss, E. Sangaline, A. Sarkar, J. Schambach, R. P. Scharenberg, A. M. Schmah, B. Schmidke, N. Schmitz, T. R. Schuster, J. Seele, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, M. Shao, B. Sharma, M. Sharma, S. S. Shi, Q. Y. Shou, E. P. Sichtermann, R. N. Singaraju, M. J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, U. G. Desouza, H. M. Spinka, B. Srivastava, T. D.S. Stanislaus, S. G. Steadman, J. R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A. A.P. Suaide, M. C. Suarez, M. Sumbera, X. M. Sun, Y. Sun, Z. Sun, B. Surrow, D. N. Svirida, T. J.M. Symons, A. Szanto De Toledo, J. Takahashi, A. H. Tang, Z. Tang, L. H. Tarini, T. Tarnowsky, D. Thein, J. H. Thomas, J. Tian, A. R. Timmins, D. Tlusty, M. Tokarev, S. Trentalange, R. E. Tribble, P. Tribedy, B. A. Trzeciak, O. D. Tsai, J. Turnau, T. Ullrich, D. G. Underwood, G. Van Buren, G. Van Nieuwenhuizen, J. A. Vanfossen, R. Varma, G. M.S. Vasconcelos, F. Videbæk, Y. P. Viyogi, S. Vokal, S. A. Voloshin, A. Vossen, M. Wada, F. Wang, G. Wang, H. Wang, J. S. Wang, Q. Wang, X. L. Wang, Y. Wang, G. Webb, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, W. Witzke, Y. F. Wu, Z. Xiao, W. Xie, K. Xin, H. Xu, N. Xu, Q. H. Xu, W. Xu, Y. Xu, Z. Xu, L. Xue, Y. Yang, Y. Yang, P. Yepes, Y. Yi, K. Yip, I. K. Yoo, M. Zawisza, H. Zbroszczyk, J. B. Zhang, S. Zhang, X. P. Zhang, Y. Zhang, Z. P. Zhang, F. Zhao, J. Zhao, C. Zhong, X. Zhu, Y. H. Zhu, Y. Zoulkarneeva, M. Zyzak
  • AGH University of Krakow
  • Joint Institute for Nuclear Research
  • Panjab University
  • Variable Energy Cyclotron Centre India
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Kent State University
  • Ohio State University
  • Brookhaven National Laboratory
  • Massachusetts Institute of Technology
  • Czech Academy of Sciences
  • University of Houston
  • University of Illinois at Chicago
  • University of Jammu
  • University of Washington
  • Czech Technical University in Prague
  • SUBATECH
  • Moscow Engineering Physics Institute
  • University of California at Davis
  • Yale University
  • Old Dominion University
  • Rice University
  • Chinese Academy of Sciences
  • University of California at Los Angeles
  • Texas A&M University
  • University of Science and Technology of China
  • Central China Normal University
  • Tsinghua University
  • Creighton University
  • Cracow University of Technology
  • University of California at Berkeley
  • Institute of Physics Bhubaneswar
  • University of Texas at Austin
  • Shandong University
  • Universidade Estadual de Campinas
  • Indiana University Bloomington
  • Lawrence Berkeley National Laboratory
  • CAS - Institute of Modern Physics
  • Wayne State University
  • University of Kentucky
  • Valparaiso University
  • Argonne National Laboratory
  • Pennsylvania State University
  • Purdue University
  • National Institute of Science Education and Research
  • Warsaw University of Technology
  • Goethe University Frankfurt
  • Temple University
  • Universidade de São Paulo
  • Indian Institute of Technology Bombay
  • University of Birmingham
  • Institute for High Energy Physics
  • Michigan State University
  • Pusan National University
  • Institute of Nuclear Physics
  • University of Zagreb
  • University of Rajasthan
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • United States Naval Academy

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Jet-medium interactions are studied via a multihadron correlation technique (called "2+1"), where a pair of back-to-back hadron triggers with large transverse momentum is used as a proxy for a di-jet. This work extends the previous analysis for nearly symmetric trigger pairs with the highest momentum threshold of trigger hadron of 5 GeV/c with the new calorimeter-based triggers with energy thresholds of up to 10 GeV and above. The distributions of associated hadrons are studied in terms of correlation shapes and per-trigger yields on each trigger side. In contrast with di-hadron correlation results with single triggers, the associated hadron distributions for back-to-back triggers from central Au+Au data at √sNN=200 GeV show no strong modifications compared to d+Au data at the same energy. An imbalance in the total transverse momentum between hadrons attributed to the near-side and away-side of jetlike peaks is observed. The relative imbalance in the Au+Au measurement with respect to d+Au reference is found to increase with the asymmetry of the trigger pair, consistent with the expectation from medium-induced energy-loss effects. In addition, this relative total transverse momentum imbalance is found to decrease for softer associated hadrons. Such evolution indicates that the energy missing at higher associated momenta is converted into softer hadrons.

Original languageEnglish
Article number044903
JournalPhysical Review C - Nuclear Physics
Volume87
Issue number4
DOIs
StatePublished - Apr 8 2013

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