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Phys Rev Lett. 2014 Sep 26;113(13):132301. doi: 10.1103/PhysRevLett.113.132301. Epub 2014 Sep 22.

Evidence of b-jet quenching in PbPb collisions at √(s(NN))=2.76  TeV.

Physical review letters

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Paulini, J Russ, H Vogel, I Vorobiev, J P Cumalat, B R Drell, W T Ford, A Gaz, E Luiggi Lopez, U Nauenberg, J G Smith, K Stenson, K A Ulmer, S R Wagner, J Alexander, A Chatterjee, N Eggert, L K Gibbons, W Hopkins, A Khukhunaishvili, B Kreis, N Mirman, G Nicolas Kaufman, J R Patterson, A Ryd, E Salvati, W Sun, W D Teo, J Thom, J Thompson, J Tucker, Y Weng, L Winstrom, P Wittich, D Winn, S Abdullin, M Albrow, J Anderson, G Apollinari, L A T Bauerdick, A Beretvas, J Berryhill, P C Bhat, K Burkett, J N Butler, V Chetluru, H W K Cheung, F Chlebana, S Cihangir, V D Elvira, I Fisk, J Freeman, Y Gao, E Gottschalk, L Gray, D Green, S Grünendahl, O Gutsche, D Hare, R M Harris, J Hirschauer, B Hooberman, S Jindariani, M Johnson, U Joshi, K Kaadze, B Klima, S Kwan, J Linacre, D Lincoln, R Lipton, J Lykken, K Maeshima, J M Marraffino, V I Martinez Outschoorn, S Maruyama, D Mason, P McBride, K Mishra, S Mrenna, Y Musienko, S Nahn, C Newman-Holmes, V O'Dell, O Prokofyev, N Ratnikova, E Sexton-Kennedy, S Sharma, W J Spalding, L Spiegel, L Taylor, S Tkaczyk, N V Tran, L Uplegger, E W Vaandering, R Vidal, A Whitbeck, J Whitmore, W Wu, F Yang, J C Yun, D Acosta, P Avery, D Bourilkov, T Cheng, S Das, M De Gruttola, G P Di Giovanni, D Dobur, R D Field, M Fisher, Y Fu, I K Furic, J Hugon, B Kim, J Konigsberg, A Korytov, A Kropivnitskaya, T Kypreos, J F Low, K Matchev, P Milenovic, G Mitselmakher, L Muniz, A Rinkevicius, L Shchutska, N Skhirtladze, M Snowball, J Yelton, M Zakaria, V Gaultney, S Hewamanage, S Linn, P Markowitz, G Martinez, J L Rodriguez, T Adams, A Askew, J Bochenek, J Chen, B Diamond, J Haas, S Hagopian, V Hagopian, K F Johnson, H Prosper, V Veeraraghavan, M Weinberg, M M Baarmand, B Dorney, M Hohlmann, H Kalakhety, F Yumiceva, M R Adams, L Apanasevich, V E Bazterra, R R Betts, I Bucinskaite, R Cavanaugh, O Evdokimov, L Gauthier, C E Gerber, D J Hofman, S Khalatyan, P Kurt, D H Moon, C O'Brien, C Silkworth, P Turner, N Varelas, U Akgun, E A Albayrak, B Bilki, W Clarida, K Dilsiz, F Duru, M Haytmyradov, J-P Merlo, H Mermerkaya, A Mestvirishvili, A Moeller, J Nachtman, H Ogul, Y Onel, F Ozok, S Sen, P Tan, E Tiras, J Wetzel, T Yetkin, K Yi, B A Barnett, B Blumenfeld, S Bolognesi, D Fehling, A V Gritsan, P Maksimovic, C Martin, M Swartz, P Baringer, A Bean, G Benelli, R P Kenny, M Murray, D Noonan, S Sanders, J Sekaric, R Stringer, Q Wang, J S Wood, A F Barfuss, I Chakaberia, A Ivanov, S Khalil, M Makouski, Y Maravin, L K Saini, S Shrestha, I Svintradze, J Gronberg, D Lange, F Rebassoo, D Wright, A Baden, B Calvert, S C Eno, J A Gomez, N J Hadley, R G Kellogg, T Kolberg, Y Lu, M Marionneau, A C Mignerey, K Pedro, A Skuja, J Temple, M B Tonjes, S C Tonwar, A Apyan, R Barbieri, G Bauer, W Busza, I A Cali, M Chan, L Di Matteo, V Dutta, G Gomez Ceballos, M Goncharov, D Gulhan, M Klute, Y S Lai, Y-J Lee, A Levin, P D Luckey, T Ma, C Paus, D Ralph, C Roland, G Roland, G S F Stephans, F Stöckli, K Sumorok, D Velicanu, J Veverka, B Wyslouch, M Yang, A S Yoon, M Zanetti, V Zhukova, B Dahmes, A De Benedetti, A Gude, S C Kao, K Klapoetke, Y Kubota, J Mans, N Pastika, R Rusack, A Singovsky, N Tambe, J Turkewitz, J G Acosta, L M Cremaldi, R Kroeger, S Oliveros, L Perera, R Rahmat, D A Sanders, D Summers, E Avdeeva, K Bloom, S Bose, D R Claes, A Dominguez, R Gonzalez Suarez, J Keller, D Knowlton, I Kravchenko, J Lazo-Flores, S Malik, F Meier, G R Snow, J Dolen, A Godshalk, I Iashvili, S Jain, A Kharchilava, A Kumar, S Rappoccio, Z Wan, G Alverson, E Barberis, D Baumgartel, M Chasco, J Haley, A Massironi, D Nash, T Orimoto, D Trocino, D Wood, J Zhang, A Anastassov, K A Hahn, A Kubik, L Lusito, N Mucia, N Odell, B Pollack, A Pozdnyakov, M Schmitt, S Stoynev, K Sung, M Velasco, S Won, D Berry, A Brinkerhoff, K M Chan, A Drozdetskiy, M Hildreth, C Jessop, D J Karmgard, N Kellams, J Kolb, K Lannon, W Luo, S Lynch, N Marinelli, D M Morse, T Pearson, M Planer, R Ruchti, J Slaunwhite, N Valls, M Wayne, M Wolf, A Woodard, L Antonelli, B Bylsma, L S Durkin, S Flowers, C Hill, R Hughes, K Kotov, T Y Ling, D Puigh, M Rodenburg, G Smith, C Vuosalo, B L Winer, H Wolfe, H W Wulsin, E Berry, P Elmer, V Halyo, P Hebda, J Hegeman, A Hunt, P Jindal, S A Koay, P Lujan, D Marlow, T Medvedeva, M Mooney, J Olsen, P Piroué, X Quan, A Raval, H Saka, D Stickland, C Tully, J S Werner, S C Zenz, A Zuranski, E Brownson, A Lopez, H Mendez, J E Ramirez Vargas, E Alagoz, D Benedetti, G Bolla, D Bortoletto, M De Mattia, A Everett, Z Hu, M Jones, K Jung, M Kress, N Leonardo, D Lopes Pegna, V Maroussov, P Merkel, D H Miller, N Neumeister, B C Radburn-Smith, I Shipsey, D Silvers, A Svyatkovskiy, F Wang, W Xie, L Xu, H D Yoo, J Zablocki, Y Zheng, N Parashar, A Adair, B Akgun, K M Ecklund, F J M Geurts, W Li, B Michlin, B P Padley, R Redjimi, J Roberts, J Zabel, B Betchart, A Bodek, R Covarelli, P de Barbaro, R Demina, Y Eshaq, T Ferbel, A Garcia-Bellido, P Goldenzweig, J Han, A Harel, D C Miner, G Petrillo, D Vishnevskiy, M Zielinski, A Bhatti, R Ciesielski, L Demortier, K Goulianos, G Lungu, S Malik, C Mesropian, S Arora, A Barker, J P Chou, C Contreras-Campana, E Contreras-Campana, D Duggan, D Ferencek, Y Gershtein, R Gray, E Halkiadakis, D Hidas, A Lath, S Panwalkar, M Park, R Patel, V Rekovic, J Robles, S Salur, S Schnetzer, C Seitz, S Somalwar, R Stone, S Thomas, P Thomassen, M Walker, K Rose, S Spanier, Z C Yang, A York, O Bouhali, R Eusebi, W Flanagan, J Gilmore, T Kamon, V Khotilovich, V Krutelyov, R Montalvo, I Osipenkov, Y Pakhotin, A Perloff, J Roe, A Safonov, T Sakuma, I Suarez, A Tatarinov, D Toback, N Akchurin, C Cowden, J Damgov, C Dragoiu, P R Dudero, K Kovitanggoon, S Kunori, S W Lee, T Libeiro, I Volobouev, E Appelt, A G Delannoy, S Greene, A Gurrola, W Johns, C Maguire, Y Mao, A Melo, M Sharma, P Sheldon, B Snook, S Tuo, J Velkovska, M W Arenton, S Boutle, B Cox, B Francis, J Goodell, R Hirosky, A Ledovskoy, C Lin, C Neu, J Wood, S Gollapinni, R Harr, P E Karchin, C Kottachchi Kankanamge Don, P Lamichhane, D A Belknap, L Borrello, D Carlsmith, M Cepeda, S Dasu, S Duric, E Friis, M Grothe, R Hall-Wilton, M Herndon, A Hervé, P Klabbers, J Klukas, A Lanaro, A Levine, R Loveless, A Mohapatra, I Ojalvo, T Perry, G A Pierro, G Polese, I Ross, A Sakharov, T Sarangi, A Savin, W H Smith,

Affiliations

  1. Yerevan Physics Institute, Yerevan, Armenia.
  2. Institut für Hochenergiephysik der OeAW, Wien, Austria.
  3. National Centre for Particle and High Energy Physics, Minsk, Belarus.
  4. Universiteit Antwerpen, Antwerpen, Belgium.
  5. Vrije Universiteit Brussel, Brussel, Belgium.
  6. Université Libre de Bruxelles, Bruxelles, Belgium.
  7. Ghent University, Ghent, Belgium.
  8. Université Catholique de Louvain, Louvain-la-Neuve, Belgium.
  9. Université de Mons, Mons, Belgium.
  10. Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil.
  11. Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
  12. Universidade Federal do ABC, Brazil.
  13. Universidade Estadual Paulista, Brazil.
  14. Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria.
  15. University of Sofia, Sofia, Bulgaria.
  16. Institute of High Energy Physics, Beijing, China.
  17. State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
  18. Universidad de Los Andes, Bogota, Colombia.
  19. Technical University of Split, Split, Croatia.
  20. University of Split, Split, Croatia.
  21. Institute Rudjer Boskovic, Zagreb, Croatia.
  22. University of Cyprus, Nicosia, Cyprus.
  23. Charles University, Prague, Czech Republic.
  24. Academy of Scientific Research and Technology of the Arab Republic of Egypt, Egyptian Network of High Energy Physics, Cairo, Egypt.
  25. National Institute of Chemical Physics and Biophysics, Tallinn, Estonia.
  26. Department of Physics, University of Helsinki, Helsinki, Finland.
  27. Helsinki Institute of Physics, Helsinki, Finland.
  28. Lappeenranta University of Technology, Lappeenranta, Finland.
  29. DSM/IRFU, CEA/Saclay, Gif-sur-Yvette, France.
  30. Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France.
  31. Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Université de Haute Alsace Mulhouse, CNRS/IN2P3, Strasbourg, France.
  32. Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules, CNRS/IN2P3, Villeurbanne, France.
  33. Université de Lyon, Université Claude Bernard Lyon 1, CNRS-IN2P3, Institut de Physique Nucléaire de Lyon, Villeurbanne, France.
  34. Institute of High Energy Physics and Informatization, Tbilisi State University, Tbilisi, Georgia.
  35. RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany.
  36. RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany.
  37. RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany.
  38. Deutsches Elektronen-Synchrotron, Hamburg, Germany.
  39. University of Hamburg, Hamburg, Germany.
  40. Institut für Experimentelle Kernphysik, Karlsruhe, Germany.
  41. Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece.
  42. University of Athens, Athens, Greece.
  43. University of Ioánnina, Ioánnina, Greece.
  44. Wigner Research Centre for Physics, Budapest, Hungary.
  45. Institute of Nuclear Research ATOMKI, Debrecen, Hungary.
  46. University of Debrecen, Debrecen, Hungary.
  47. National Institute of Science Education and Research, Bhubaneswar, India.
  48. Panjab University, Chandigarh, India.
  49. University of Delhi, Delhi, India.
  50. Saha Institute of Nuclear Physics, Kolkata, India.
  51. Bhabha Atomic Research Centre, Mumbai, India.
  52. Tata Institute of Fundamental Research - EHEP, Mumbai, India.
  53. Tata Institute of Fundamental Research - HECR, Mumbai, India.
  54. Institute for Research in Fundamental Sciences (IPM), Tehran, Iran.
  55. University College Dublin, Dublin, Ireland.
  56. INFN Sezione di Bari, Italy and Università di Bari, Italy.
  57. INFN Sezione di Bari, Italy.
  58. INFN Sezione di Bari, Italy and Politecnico di Bari, Italy.
  59. INFN Sezione di Bologna, Italy.
  60. INFN Sezione di Bologna, Italy and Università di Bologna, Italy.
  61. INFN Sezione di Catania, Italy and Università di Catania, Italy.
  62. INFN Sezione di Catania, Italy.
  63. INFN Sezione di Firenze, Italy.
  64. INFN Sezione di Firenze, Italy and Università di Firenze, Italy.
  65. INFN Laboratori Nazionali di Frascati, Frascati, Italy.
  66. INFN Sezione di Genova, Italy.
  67. INFN Sezione di Genova, Italy and Università di Genova, Italy.
  68. INFN Sezione di Milano-Bicocca, Italy.
  69. INFN Sezione di Milano-Bicocca, Italy and Università di Milano-Bicocca, Italy.
  70. INFN Sezione di Napoli, Italy.
  71. INFN Sezione di Napoli, Italy and Università della Basilicata (Potenza), Italy.
  72. INFN Sezione di Napoli, Italy and Università di Napoli 'Federico II', Italy.
  73. INFN Sezione di Napoli, Italy and Università G. Marconi (Roma), Italy.
  74. INFN Sezione di Padova, Italy.
  75. INFN Sezione di Padova, Italy and Università di Padova, Italy.
  76. INFN Sezione di Padova, Italy and Università di Trento (Trento), Italy.
  77. INFN Sezione di Pavia, Italy and Università di Pavia, Italy.
  78. NFN Sezione di Perugia, Italy and Università di Perugia, Italy.
  79. NFN Sezione di Perugia, Italy.
  80. INFN Sezione di Pisa, Italy.
  81. INFN Sezione di Pisa, Italy and Scuola Normale Superiore di Pisa, Italy.
  82. INFN Sezione di Pisa, Italy and Università di Pisa, Italy.
  83. INFN Sezione di Roma, Italy and Università di Roma, Italy.
  84. INFN Sezione di Roma, Italy.
  85. INFN Sezione di Torino, Italy and Università di Torino, Italy.
  86. INFN Sezione di Torino, Italy and Università del Piemonte Orientale (Novara), Italy.
  87. INFN Sezione di Torino, Italy.
  88. INFN Sezione di Trieste, Italy.
  89. INFN Sezione di Trieste, Italy and Università di Trieste, Italy.
  90. Kangwon National University, Chunchon, Korea.
  91. Kyungpook National University, Daegu, Korea.
  92. Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea.
  93. Korea University, Seoul, Korea.
  94. University of Seoul, Seoul, Korea.
  95. Sungkyunkwan University, Suwon, Korea.
  96. Vilnius University, Vilnius, Lithuania.
  97. University of Malaya Jabatan Fizik, Kuala Lumpur, Malaysia.
  98. Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico.
  99. Universidad Iberoamericana, Mexico City, Mexico.
  100. Benemerita Universidad Autonoma de Puebla, Puebla, Mexico.
  101. Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico.
  102. University of Auckland, Auckland, New Zealand.
  103. University of Canterbury, Christchurch, New Zealand.
  104. National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan.
  105. National Centre for Nuclear Research, Swierk, Poland.
  106. Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland.
  107. Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal.
  108. Joint Institute for Nuclear Research, Dubna, Russia.
  109. Petersburg Nuclear Physics Institute, Gatchina (St. Petersburg), Russia.
  110. Institute for Nuclear Research, Moscow, Russia.
  111. Institute for Theoretical and Experimental Physics, Moscow, Russia.
  112. P.N. Lebedev Physical Institute, Moscow, Russia.
  113. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia.
  114. State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, Russia.
  115. University of Belgrade, Faculty of Physics and Vinca Institute of Nuclear Sciences, Belgrade, Serbia.
  116. Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain.
  117. Universidad Autónoma de Madrid, Madrid, Spain.
  118. Universidad de Oviedo, Oviedo, Spain.
  119. Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain.
  120. CERN, European Organization for Nuclear Research, Geneva, Switzerland.
  121. Paul Scherrer Institut, Villigen, Switzerland.
  122. Institute for Particle Physics, ETH Zurich, Zurich, Switzerland.
  123. Universität Zürich, Zurich, Switzerland.
  124. National Central University, Chung-Li, Taiwan.
  125. National Taiwan University (NTU), Taipei, Taiwan.
  126. Chulalongkorn University, Bangkok, Thailand.
  127. Cukurova University, Adana, Turkey.
  128. Physics Department, Middle East Technical University, Ankara, Turkey.
  129. Bogazici University, Istanbul, Turkey.
  130. Istanbul Technical University, Istanbul, Turkey.
  131. National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov, Ukraine.
  132. University of Bristol, Bristol, United Kingdom.
  133. Rutherford Appleton Laboratory, Didcot, United Kingdom.
  134. Imperial College, London, United Kingdom.
  135. Brunel University, Uxbridge, United Kingdom.
  136. Baylor University, Waco, USA.
  137. The University of Alabama, Tuscaloosa, USA.
  138. Boston University, Boston, USA.
  139. Brown University, Providence, USA.
  140. University of California, Davis, Davis, USA.
  141. University of California, Los Angeles, USA.
  142. University of California, Riverside, Riverside, USA.
  143. University of California, San Diego, La Jolla, USA.
  144. University of California, Santa Barbara, Santa Barbara, USA.
  145. California Institute of Technology, Pasadena, USA.
  146. Carnegie Mellon University, Pittsburgh, USA.
  147. University of Colorado at Boulder, Boulder, USA.
  148. Cornell University, Ithaca, USA.
  149. Fairfield University, Fairfield, USA.
  150. Fermi National Accelerator Laboratory, Batavia, USA.
  151. University of Florida, Gainesville, USA.
  152. Florida International University, Miami, USA.
  153. Florida State University, Tallahassee, USA.
  154. Florida Institute of Technology, Melbourne, USA.
  155. University of Illinois at Chicago (UIC), Chicago, USA.
  156. The University of Iowa, Iowa City, USA.
  157. Johns Hopkins University, Baltimore, USA.
  158. The University of Kansas, Lawrence, USA.
  159. Kansas State University, Manhattan, USA.
  160. Lawrence Livermore National Laboratory, Livermore, USA.
  161. University of Maryland, College Park, USA.
  162. Massachusetts Institute of Technology, Cambridge, USA.
  163. University of Minnesota, Minneapolis, USA.
  164. University of Mississippi, Oxford, USA.
  165. University of Nebraska-Lincoln, Lincoln, USA.
  166. State University of New York at Buffalo, Buffalo, USA.
  167. Northeastern University, Boston, USA.
  168. Northwestern University, Evanston, USA.
  169. University of Notre Dame, Notre Dame, USA.
  170. The Ohio State University, Columbus, USA.
  171. Princeton University, Princeton, USA.
  172. University of Puerto Rico, Mayaguez, USA.
  173. Purdue University, West Lafayette, USA.
  174. Purdue University Calumet, Hammond, USA.
  175. Rice University, Houston, USA.
  176. University of Rochester, Rochester, USA.
  177. The Rockefeller University, New York, USA.
  178. Rutgers, The State University of New Jersey, Piscataway, USA.
  179. University of Tennessee, Knoxville, USA.
  180. Texas A&M University, College Station, USA.
  181. Texas Tech University, Lubbock, USA.
  182. Vanderbilt University, Nashville, USA.
  183. University of Virginia, Charlottesville, USA.
  184. Wayne State University, Detroit, USA.
  185. University of Wisconsin, Madison, USA.

PMID: 25302881 DOI: 10.1103/PhysRevLett.113.132301

Abstract

The production of jets associated to bottom quarks is measured for the first time in PbPb collisions at a center-of-mass energy of 2.76 TeV per nucleon pair. Jet spectra are reported in the transverse momentum (p(T)) range of 80-250  GeV/c, and within pseudorapidity |η|<2. The nuclear modification factor (R(AA)) calculated from these spectra shows a strong suppression in the b-jet yield in PbPb collisions relative to the yield observed in pp collisions at the same energy. The suppression persists to the largest values of p(T) studied, and is centrality dependent. The R(AA) is about 0.4 in the most central events, similar to previous observations for inclusive jets. This implies that jet quenching does not have a strong dependence on parton mass and flavor in the jet p(T) range studied.

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