Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN=2.76 TeV
First measurements of the azimuthal anisotropy of neutral pions produced in Pb-Pb collisions at a center-of-mass energy of [√ over s[subscript NN]]=2.76 TeV are presented. The amplitudes of the second Fourier component (v[subscript 2]) of the π[superscript 0] azimuthal distributions are extracted u...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/78344 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/0000-0003-3681-0649 https://orcid.org/0000-0002-0869-5631 |
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| author | Apyan, Aram 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 Krajczar, Krisztian F. Li, W. Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Wolf, Roger Wyslouch, Boleslaw Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Ma, Teng Roland, Christof E Rudolph, Matthew Scott Stoeckli, Fabian Sung, Kevin Kai Hong Wenger, Edward Allen Yang, Mingming Bauer, Gerry P Luckey Jr, P David Roland, Gunther M Sumorok, Konstanty C Xie, Si |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram 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 Krajczar, Krisztian F. Li, W. Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Wolf, Roger Wyslouch, Boleslaw Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Ma, Teng Roland, Christof E Rudolph, Matthew Scott Stoeckli, Fabian Sung, Kevin Kai Hong Wenger, Edward Allen Yang, Mingming Bauer, Gerry P Luckey Jr, P David Roland, Gunther M Sumorok, Konstanty C Xie, Si |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | First measurements of the azimuthal anisotropy of neutral pions produced in Pb-Pb collisions at a center-of-mass energy of [√ over s[subscript NN]]=2.76 TeV are presented. The amplitudes of the second Fourier component (v[subscript 2]) of the π[superscript 0] azimuthal distributions are extracted using an event-plane technique. The values of v[subscript 2] are studied as a function of the neutral pion transverse momentum (p[subscript T]) for different classes of collision centrality in the kinematic range 1.6<p[subscript T]<8.0 GeV/c, within the pseudorapidity interval |η|<0.8. The CMS measurements of v[susbcript 2](p[subscript T]) are similar to previously reported π[superscript 0] azimuthal anisotropy results from [√ over s[subscript NN]=200 GeV Au-Au collisions at RHIC, despite a factor of ∼14 increase in the center-of-mass energy. In the momentum range 2.5<p[subscript T]<5.0 GeV/c, the neutral pion anisotropies are found to be smaller than those observed by CMS for inclusive charged particles. |
| first_indexed | 2024-09-23T15:18:00Z |
| format | Article |
| id | mit-1721.1/78344 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:18:00Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/783442023-02-26T06:01:17Z Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN=2.76 TeV Apyan, Aram 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 Krajczar, Krisztian F. Li, W. Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Wolf, Roger Wyslouch, Boleslaw Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Ma, Teng Roland, Christof E Rudolph, Matthew Scott Stoeckli, Fabian Sung, Kevin Kai Hong Wenger, Edward Allen Yang, Mingming Bauer, Gerry P Luckey Jr, P David Roland, Gunther M Sumorok, Konstanty C Xie, Si 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. Apyan, Aram 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 Krajczar, Krisztian F. Li, W. Luckey, P. David, Jr. Ma, T. Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Rudolph, M. Stephans, George S. F. Stockli, F. Sumorok, Konstanty C. Sung, K. Velicanu, Dragos Alexandru Wenger, E. A. Wolf, Roger Wyslouch, Boleslaw Xie, S. Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco First measurements of the azimuthal anisotropy of neutral pions produced in Pb-Pb collisions at a center-of-mass energy of [√ over s[subscript NN]]=2.76 TeV are presented. The amplitudes of the second Fourier component (v[subscript 2]) of the π[superscript 0] azimuthal distributions are extracted using an event-plane technique. The values of v[subscript 2] are studied as a function of the neutral pion transverse momentum (p[subscript T]) for different classes of collision centrality in the kinematic range 1.6<p[subscript T]<8.0 GeV/c, within the pseudorapidity interval |η|<0.8. The CMS measurements of v[susbcript 2](p[subscript T]) are similar to previously reported π[superscript 0] azimuthal anisotropy results from [√ over s[subscript NN]=200 GeV Au-Au collisions at RHIC, despite a factor of ∼14 increase in the center-of-mass energy. In the momentum range 2.5<p[subscript T]<5.0 GeV/c, the neutral pion anisotropies are found to be smaller than those observed by CMS for inclusive charged particles. 2013-04-11T15:41:16Z 2013-04-11T15:41:16Z 2013-01 2012-08 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/78344 Chatrchyan, S. et al. “Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at sqrt[s_{NN}]=2.76 TeV.” Physical Review Letters 110.4 (2013). 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/0000-0003-3681-0649 https://orcid.org/0000-0002-0869-5631 en_US http://dx.doi.org/10.1103/PhysRevLett.110.042301 Physical Review Letters Creative Commons Attribution 3.0 http://creativecommons.org/licenses/by/3.0/ application/pdf American Physical Society APS |
| spellingShingle | Apyan, Aram 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 Krajczar, Krisztian F. Li, W. Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Wolf, Roger Wyslouch, Boleslaw Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Ma, Teng Roland, Christof E Rudolph, Matthew Scott Stoeckli, Fabian Sung, Kevin Kai Hong Wenger, Edward Allen Yang, Mingming Bauer, Gerry P Luckey Jr, P David Roland, Gunther M Sumorok, Konstanty C Xie, Si Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN=2.76 TeV |
| title | Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN=2.76 TeV |
| title_full | Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN=2.76 TeV |
| title_fullStr | Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN=2.76 TeV |
| title_full_unstemmed | Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN=2.76 TeV |
| title_short | Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN=2.76 TeV |
| title_sort | measurement of the azimuthal anisotropy of neutral pions in pb pb collisions at √snn 2 76 tev |
| url | http://hdl.handle.net/1721.1/78344 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/0000-0003-3681-0649 https://orcid.org/0000-0002-0869-5631 |
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