Azimuthal anisotropy of charged particles at high transverse momenta in Pb-Pb collisions at √s NN=2.76TeV
The azimuthal anisotropy of charged particles in Pb-Pb collisions at √sNN=2.76 TeV is measured with the CMS detector at the LHC over an extended transverse momentum (pT) range up to approximately 60 GeV/c. The data cover both the low-pT region associated with hydrodynamic flow phenomena and the hi...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/72206 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/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 |
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| author | Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Rudolph, Matthew Scott Stephans, George S. F. Stoeckli, Fabian Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wyslouch, Boleslaw Xie, Si Yilmaz, Yetkin Zanetti, Marco Bauer, Gerry P Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Roland, Gunther M Sumorok, Konstanty C Wolf, Roger Yang, Mingming Yoon, A. S. |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Rudolph, Matthew Scott Stephans, George S. F. Stoeckli, Fabian Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wyslouch, Boleslaw Xie, Si Yilmaz, Yetkin Zanetti, Marco Bauer, Gerry P Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Roland, Gunther M Sumorok, Konstanty C Wolf, Roger Yang, Mingming Yoon, A. S. |
| author_sort | Bendavid, Joshua L. |
| collection | MIT |
| description | The azimuthal anisotropy of charged particles in Pb-Pb collisions at √sNN=2.76 TeV is measured with the CMS detector at the LHC over an extended transverse momentum (pT) range up to approximately 60 GeV/c. The data cover both the low-pT region associated with hydrodynamic flow phenomena and the high-pT region where the anisotropies may reflect the path-length dependence of parton energy loss in the created medium. The anisotropy parameter (v[subscript 2]) of the particles is extracted by correlating charged tracks with respect to the event-plane reconstructed by using the energy deposited in forward-angle calorimeters. For the six bins of collision centrality studied, spanning the range of 0–60% most-central events, the observed v[subscript 2] values are found to first increase with pT, reaching a maximum around pT=3 GeV/c, and then to gradually decrease to almost zero, with the decline persisting up to at least pT=40 GeV/c over the full centrality range measured. |
| first_indexed | 2024-09-23T14:21:00Z |
| format | Article |
| id | mit-1721.1/72206 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:21:00Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/722062023-02-26T04:28:41Z Azimuthal anisotropy of charged particles at high transverse momenta in Pb-Pb collisions at √s NN=2.76TeV Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Rudolph, Matthew Scott Stephans, George S. F. Stoeckli, Fabian Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wyslouch, Boleslaw Xie, Si Yilmaz, Yetkin Zanetti, Marco Bauer, Gerry P Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Roland, Gunther M Sumorok, Konstanty C Wolf, Roger Yang, Mingming Yoon, A. S. Massachusetts Institute of Technology. Department of Chemical Engineering Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Massachusetts Institute of Technology. School of Science Bauer, Gerry P. Bauer, Gerry P. Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Lee, Y. J. Li, W. Luckey, P. David, Jr. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Rudolph, Matthew Scott Stephans, George S. F. Stoeckli, Fabian Sumorok, Konstanty C. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wolf, R. Wyslouch, Boleslaw Xie, Si Yang, M. Yilmaz, Yetkin Yoon, Andrew Zanetti, Marco The azimuthal anisotropy of charged particles in Pb-Pb collisions at √sNN=2.76 TeV is measured with the CMS detector at the LHC over an extended transverse momentum (pT) range up to approximately 60 GeV/c. The data cover both the low-pT region associated with hydrodynamic flow phenomena and the high-pT region where the anisotropies may reflect the path-length dependence of parton energy loss in the created medium. The anisotropy parameter (v[subscript 2]) of the particles is extracted by correlating charged tracks with respect to the event-plane reconstructed by using the energy deposited in forward-angle calorimeters. For the six bins of collision centrality studied, spanning the range of 0–60% most-central events, the observed v[subscript 2] values are found to first increase with pT, reaching a maximum around pT=3 GeV/c, and then to gradually decrease to almost zero, with the decline persisting up to at least pT=40 GeV/c over the full centrality range measured. United States. Dept. of Energy. National Science Foundation (U.S.). 2012-08-20T12:36:44Z 2012-08-20T12:36:44Z 2012-07 2012-04 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/72206 Chatrchyan, S. et al. “Azimuthal Anisotropy of Charged Particles at High Transverse Momenta in Pb-Pb Collisions at sqrt[s_{NN}]=2.76 TeV.” Physical Review Letters 109.2 (2012): 022301. © 2012 Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. 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/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 en_US http://dx.doi.org/10.1103/PhysRevLett.109.022301 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Rudolph, Matthew Scott Stephans, George S. F. Stoeckli, Fabian Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wyslouch, Boleslaw Xie, Si Yilmaz, Yetkin Zanetti, Marco Bauer, Gerry P Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Roland, Gunther M Sumorok, Konstanty C Wolf, Roger Yang, Mingming Yoon, A. S. Azimuthal anisotropy of charged particles at high transverse momenta in Pb-Pb collisions at √s NN=2.76TeV |
| title | Azimuthal anisotropy of charged particles at high transverse momenta in Pb-Pb collisions at √s NN=2.76TeV |
| title_full | Azimuthal anisotropy of charged particles at high transverse momenta in Pb-Pb collisions at √s NN=2.76TeV |
| title_fullStr | Azimuthal anisotropy of charged particles at high transverse momenta in Pb-Pb collisions at √s NN=2.76TeV |
| title_full_unstemmed | Azimuthal anisotropy of charged particles at high transverse momenta in Pb-Pb collisions at √s NN=2.76TeV |
| title_short | Azimuthal anisotropy of charged particles at high transverse momenta in Pb-Pb collisions at √s NN=2.76TeV |
| title_sort | azimuthal anisotropy of charged particles at high transverse momenta in pb pb collisions at √s nn 2 76tev |
| url | http://hdl.handle.net/1721.1/72206 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/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 |
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