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Phys Rev Lett. 2014 Mar 28;112(12):122301. doi: 10.1103/PhysRevLett.112.122301. Epub 2014 Mar 28.

Jet-hadron correlations in √[s(NN)]=200  GeV p+p and central Au+Au collisions.

Physical review letters

L Adamczyk, J K Adkins, G Agakishiev, M M Aggarwal, Z Ahammed, I Alekseev, J Alford, C D Anson, A Aparin, D Arkhipkin, E C Aschenauer, G S Averichev, A Banerjee, D R Beavis, R Bellwied, A Bhasin, A K Bhati, P Bhattarai, H Bichsel, J Bielcik, J Bielcikova, L C Bland, I G Bordyuzhin, W Borowski, J Bouchet, A V Brandin, S G Brovko, S Bültmann, I Bunzarov, T P Burton, J Butterworth, 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, L Chen, J Cheng, M Cherney, A Chikanian, W Christie, J Chwastowski, M J M Codrington, G Contin, 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, A A Derevschikov, R Derradi de Souza, S Dhamija, B di Ruzza, L Didenko, C Dilks, F Ding, P Djawotho, X Dong, J L Drachenberg, J E Draper, C M Du, L E Dunkelberger, J C Dunlop, L G Efimov, J Engelage, K S Engle, G Eppley, L Eun, O Evdokimov, O Eyser, R Fatemi, S Fazio, J Fedorisin, P Filip, E Finch, Y Fisyak, C E Flores, C A Gagliardi, D R Gangadharan, D Garand, F Geurts, A Gibson, M Girard, S Gliske, L Greiner, D Grosnick, D S Gunarathne, Y Guo, A Gupta, S Gupta, W Guryn, B Haag, A Hamed, L-X Han, R Haque, J W Harris, S Heppelmann, A Hirsch, G W Hoffmann, D J Hofman, S Horvat, B Huang, H Z Huang, X Huang, P Huck, T J Humanic, G Igo, W W Jacobs, H Jang, E G Judd, S Kabana, D Kalinkin, K Kang, K Kauder, H W Ke, D Keane, A Kechechyan, A Kesich, Z H Khan, D P Kikola, I Kisel, A Kisiel, D D Koetke, T Kollegger, J Konzer, I Koralt, L Kotchenda, A F Kraishan, P Kravtsov, K Krueger, I Kulakov, L Kumar, R A Kycia, M A C Lamont, J M Landgraf, K D Landry, J Lauret, A Lebedev, R Lednicky, J H Lee, M J LeVine, C Li, W Li, X Li, X Li, Y Li, Z M Li, M A Lisa, F Liu, T Ljubicic, W J Llope, M Lomnitz, R S Longacre, X Luo, G L Ma, Y G Ma, D M M D Madagodagettige Don, D P Mahapatra, R Majka, S Margetis, C Markert, H Masui, H S Matis, D McDonald, T S McShane, N G Minaev, S Mioduszewski, B Mohanty, M M Mondal, D A Morozov, M K Mustafa, B K Nandi, Md Nasim, T K Nayak, J M Nelson, G Nigmatkulov, L V Nogach, S Y Noh, J Novak, S B Nurushev, G Odyniec, A Ogawa, K Oh, A Ohlson, V Okorokov, E W Oldag, D L Olvitt, 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, N Poljak, J Porter, A M Poskanzer, N K Pruthi, M Przybycien, P R Pujahari, J Putschke, H Qiu, A Quintero, S Ramachandran, R Raniwala, S Raniwala, R L Ray, C K Riley, H G Ritter, J B Roberts, O V Rogachevskiy, J L Romero, J F Ross, A Roy, L Ruan, J Rusnak, O Rusnakova, N R Sahoo, P K Sahu, I Sakrejda, S Salur, J Sandweiss, E Sangaline, A Sarkar, J Schambach, R P Scharenberg, A M Schmah, W B Schmidke, N Schmitz, J Seger, P Seyboth, N Shah, E Shahaliev, P V Shanmuganathan, M Shao, B Sharma, W Q Shen, S S Shi, Q Y Shou, E P Sichtermann, R N Singaraju, M J Skoby, D Smirnov, N Smirnov, D Solanki, P Sorensen, H M Spinka, B Srivastava, T D S Stanislaus, J R Stevens, R Stock, M Strikhanov, B Stringfellow, M Sumbera, X Sun, X M Sun, Y Sun, Z Sun, B Surrow, D N Svirida, T J M Symons, M A Szelezniak, J Takahashi, A H Tang, Z Tang, T Tarnowsky, J H Thomas, 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, M Vandenbroucke, J A Vanfossen, R Varma, G M S Vasconcelos, A N Vasiliev, R Vertesi, F Videbæk, Y P Viyogi, S Vokal, A Vossen, M Wada, F Wang, G Wang, H Wang, J S Wang, X L Wang, Y Wang, Y Wang, G Webb, J C Webb, G D Westfall, H Wieman, S W Wissink, R Witt, Y F Wu, Z Xiao, W Xie, K Xin, H Xu, J Xu, N Xu, Q H Xu, Y Xu, Z Xu, W Yan, C Yang, Y Yang, Y Yang, Z Ye, P Yepes, L Yi, K Yip, I-K Yoo, N Yu, Y Zawisza, H Zbroszczyk, W Zha, J B Zhang, J L 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,

Affiliations

  1. AGH University of Science and Technology, Cracow, Poland.
  2. University of Kentucky, Lexington, Kentucky 40506-0055, USA.
  3. Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  4. Panjab University, Chandigarh 160014, India.
  5. Variable Energy Cyclotron Centre, Kolkata 700064, India.
  6. Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia.
  7. Kent State University, Kent, Ohio 44242, USA.
  8. Ohio State University, Columbus, Ohio 43210, USA.
  9. Brookhaven National Laboratory, Upton, New York 11973, USA.
  10. University of Houston, Houston, Texas 77204, USA.
  11. University of Jammu, Jammu 180001, India.
  12. University of Texas, Austin, Texas 78712, USA.
  13. University of Washington, Seattle, Washington 98195, USA.
  14. Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
  15. Nuclear Physics Institute AS CR, 250 68 ?ež/Prague, Czech Republic.
  16. SUBATECH, Nantes, France.
  17. Moscow Engineering Physics Institute, Moscow Russia.
  18. University of California, Davis, California 95616, USA.
  19. Old Dominion University, Norfolk, Virginia 23529, USA.
  20. Rice University, Houston, Texas 77251, USA.
  21. Yale University, New Haven, Connecticut 06520, USA.
  22. Pennsylvania State University, University Park, Pennsylvania 16802, USA.
  23. Texas A&M University, College Station, Texas 77843, USA.
  24. University of Science and Technology of China, Hefei 230026, China.
  25. Shanghai Institute of Applied Physics, Shanghai 201800, China.
  26. Central China Normal University (HZNU), Wuhan 430079, China.
  27. Tsinghua University, Beijing 100084, China.
  28. Creighton University, Omaha, Nebraska 68178, USA.
  29. Cracow University of Technology, Cracow, Poland.
  30. Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  31. University of California, Berkeley, California 94720, USA.
  32. Institute of Physics, Bhubaneswar 751005, India.
  33. Shandong University, Jinan, Shandong 250100, China.
  34. Institute of High Energy Physics, Protvino, Russia.
  35. Universidade Estadual de Campinas, Sao Paulo, Brazil.
  36. Indiana University, Bloomington, Indiana 47408, USA.
  37. Valparaiso University, Valparaiso, Indiana 46383, USA.
  38. Institute of Modern Physics, Lanzhou, China.
  39. University of California, Los Angeles, California 90095, USA.
  40. United States Naval Academy, Annapolis, Maryland 21402, USA.
  41. University of Illinois at Chicago, Chicago, Illinois 60607, USA.
  42. Purdue University, West Lafayette, Indiana 47907, USA.
  43. Warsaw University of Technology, Warsaw, Poland.
  44. Argonne National Laboratory, Argonne, Illinois 60439, USA.
  45. Temple University, Philadelphia, Pennsylvania 19122, USA.
  46. National Institute of Science Education and Research, Bhubaneswar 751005, India.
  47. Korea Institute of Science and Technology Information, Daejeon, Korea.
  48. Frankfurt Institute for Advanced Studies FIAS, Frankfurt, Germany.
  49. Indian Institute of Technology, Mumbai, India.
  50. University of Birmingham, Birmingham, United Kingdom.
  51. Michigan State University, East Lansing, Michigan 48824, USA.
  52. Pusan National University, Pusan, Republic of Korea.
  53. Institute of Nuclear Physics PAN, Cracow, Poland.
  54. University of Zagreb, Zagreb HR-10002, Croatia.
  55. Wayne State University, Detroit, Michigan 48201, USA.
  56. University of Rajasthan, Jaipur 302004, India.
  57. Max-Planck-Institut für Physik, Munich, Germany.
  58. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.

PMID: 24724645 DOI: 10.1103/PhysRevLett.112.122301

Abstract

Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au+Au and p+p collisions at √[s(NN)]=200  GeV in STAR are presented. The trigger jet population in Au+Au collisions is biased toward 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 (pTassoc) and enhanced at low pTassoc 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.

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