Evidence of b-Jet Quenching in PbPb Collisions at √s[subscript NN] = 2.76 TeV
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[subscript T]) range of 80–250 GeV/c, and within pseudorapidity |η| < 2. The nuclear...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/91192 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-6332-5839 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0002-7945-005X https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0002-1136-6900 |
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| author | Apyan, Aram Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yoon, A. S. Zanetti, Marco Roland, Gunther M Stoeckli, Fabian Sumorok, Konstanty C Yang, Mingming Wyslouch, Victoria Barbieri, Richard Alexander Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Roland, Christof E |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yoon, A. S. Zanetti, Marco Roland, Gunther M Stoeckli, Fabian Sumorok, Konstanty C Yang, Mingming Wyslouch, Victoria Barbieri, Richard Alexander Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Roland, Christof E |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | 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[subscript T]) range of 80–250 GeV/c, and within pseudorapidity |η| < 2. The nuclear modification factor (R[subscript 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[subscript T] studied, and is centrality dependent. The R[subscript 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[subscript T] range studied. |
| first_indexed | 2024-09-23T11:21:14Z |
| format | Article |
| id | mit-1721.1/91192 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:21:14Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/911922023-02-26T08:14:15Z Evidence of b-Jet Quenching in PbPb Collisions at √s[subscript NN] = 2.76 TeV Apyan, Aram Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yoon, A. S. Zanetti, Marco Roland, Gunther M Stoeckli, Fabian Sumorok, Konstanty C Yang, Mingming Wyslouch, Victoria Barbieri, Richard Alexander Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Roland, Christof E Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Massachusetts Institute of Technology. School of Science Apyan, Aram Barbieri, R. Bauer, Gerry P. Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Dutta, V. Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Lee, Y.-J. Levin, A. Luckey, P. David, Jr. Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Stephans, George S. F. Stockli, Fabian Sumorok, Konstanty C. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yang, M. Yoon, A. S. Zanetti, Marco Zhukova, Victoria 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[subscript T]) range of 80–250 GeV/c, and within pseudorapidity |η| < 2. The nuclear modification factor (R[subscript 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[subscript T] studied, and is centrality dependent. The R[subscript 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[subscript T] range studied. United States. Dept. of Energy National Science Foundation (U.S.) 2014-10-27T17:22:18Z 2014-10-27T17:22:18Z 2014-09 2013-12 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/91192 Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Evidence of b-Jet Quenching in PbPb Collisions at √s[subscript NN] = 2.76 TeV.” Physical Review Letters 113, no. 13 (September 2014). © 2014 CERN, for the CMS Collaboration https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-6332-5839 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0002-7945-005X https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0002-1136-6900 en_US http://dx.doi.org/10.1103/PhysRevLett.113.132301 Physical Review Letters Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf American Physical Society American Physical Society |
| spellingShingle | Apyan, Aram Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yoon, A. S. Zanetti, Marco Roland, Gunther M Stoeckli, Fabian Sumorok, Konstanty C Yang, Mingming Wyslouch, Victoria Barbieri, Richard Alexander Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Roland, Christof E Evidence of b-Jet Quenching in PbPb Collisions at √s[subscript NN] = 2.76 TeV |
| title | Evidence of b-Jet Quenching in PbPb Collisions at √s[subscript NN] = 2.76 TeV |
| title_full | Evidence of b-Jet Quenching in PbPb Collisions at √s[subscript NN] = 2.76 TeV |
| title_fullStr | Evidence of b-Jet Quenching in PbPb Collisions at √s[subscript NN] = 2.76 TeV |
| title_full_unstemmed | Evidence of b-Jet Quenching in PbPb Collisions at √s[subscript NN] = 2.76 TeV |
| title_short | Evidence of b-Jet Quenching in PbPb Collisions at √s[subscript NN] = 2.76 TeV |
| title_sort | evidence of b jet quenching in pbpb collisions at √s subscript nn 2 76 tev |
| url | http://hdl.handle.net/1721.1/91192 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-6332-5839 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0002-7945-005X https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0002-1136-6900 |
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