Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(s)NN=2.76 TeV
A comparison of the relative yields of Υ resonances in the μ[superscript +]μ[superscript -] decay channel in Pb-Pb and pp collisions at a center-of-mass energy per nucleon pair of 2.76 TeV is performed with data collected with the CMS detector at the LHC. Using muons of transverse momentum above 4 ...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/66979 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/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 |
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| author | Alver, Burak Han Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart 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 Stephans, George S. F. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Xie, Si Yilmaz, Yetkin Zanetti, Marco Harris, Philip Coleman Luckey Jr, P David Roland, Gunther M Stoeckli, Fabian Yang, Mingming Bauer, Gerry P Lee, Yen-Jie Loizides, Constantinos Roland, Christof E Sumorok, Konstanty C |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Alver, Burak Han Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart 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 Stephans, George S. F. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Xie, Si Yilmaz, Yetkin Zanetti, Marco Harris, Philip Coleman Luckey Jr, P David Roland, Gunther M Stoeckli, Fabian Yang, Mingming Bauer, Gerry P Lee, Yen-Jie Loizides, Constantinos Roland, Christof E Sumorok, Konstanty C |
| author_sort | Alver, Burak Han |
| collection | MIT |
| description | A comparison of the relative yields of Υ resonances in the μ[superscript +]μ[superscript -] decay channel in Pb-Pb and pp collisions at a center-of-mass energy per nucleon pair of 2.76 TeV is performed with data collected with the CMS detector at the LHC. Using muons of transverse momentum above 4 GeV/c and pseudorapidity below 2.4, the double ratio of the Υ(2S) and Υ(3S) excited states to the Υ(1S) ground state in Pb-Pb and pp collisions, [Υ(2S+3S)/Υ(1S)][subscript Pb-Pb]/[Υ(2S+3S)/Υ(1S)][subscript pp], is found to be 0.31[subscript -0.15][superscript +0.19](stat)±0.03(syst). The probability to obtain the measured value, or lower, if the true double ratio is unity, is calculated to be less than 1%. |
| first_indexed | 2024-09-23T08:17:55Z |
| format | Article |
| id | mit-1721.1/66979 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:17:55Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/669792023-02-26T08:32:48Z Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(s)NN=2.76 TeV Alver, Burak Han Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart 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 Stephans, George S. F. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Xie, Si Yilmaz, Yetkin Zanetti, Marco Harris, Philip Coleman Luckey Jr, P David Roland, Gunther M Stoeckli, Fabian Yang, Mingming Bauer, Gerry P Lee, Yen-Jie Loizides, Constantinos Roland, Christof E Sumorok, Konstanty C Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Paus, Christoph M. E. Alver, Burak Han Bauer, Gerry P. Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Harris, P. Kim, Y. Klute, Markus Lee, Y. J. Li, W. Loizides, Constantin Luckey, P. David, Jr. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Stephans, George S. F. Stockli, F. Sumorok, Konstanty C. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Xie, Si Yang, M. Yilmaz, Yetkin Zanetti, Marco A comparison of the relative yields of Υ resonances in the μ[superscript +]μ[superscript -] decay channel in Pb-Pb and pp collisions at a center-of-mass energy per nucleon pair of 2.76 TeV is performed with data collected with the CMS detector at the LHC. Using muons of transverse momentum above 4 GeV/c and pseudorapidity below 2.4, the double ratio of the Υ(2S) and Υ(3S) excited states to the Υ(1S) ground state in Pb-Pb and pp collisions, [Υ(2S+3S)/Υ(1S)][subscript Pb-Pb]/[Υ(2S+3S)/Υ(1S)][subscript pp], is found to be 0.31[subscript -0.15][superscript +0.19](stat)±0.03(syst). The probability to obtain the measured value, or lower, if the true double ratio is unity, is calculated to be less than 1%. United States. Dept. of Energy National Science Foundation (U.S.) Alfred P. Sloan Foundation 2011-11-09T20:01:17Z 2011-11-09T20:01:17Z 2011-07 2011-05 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/66979 Chatrchyan, S. et al. “Indications of Suppression of Excited Υ States in Pb-Pb Collisions at sqrt[s_{NN}]=2.76 TeV.” Physical Review Letters 107 (2011): n. pag. Web. 8 Nov. 2011. © 2011 American Physical Society 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/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 en_US http://dx.doi.org/10.1103/PhysRevLett.107.052302 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 | Alver, Burak Han Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart 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 Stephans, George S. F. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Xie, Si Yilmaz, Yetkin Zanetti, Marco Harris, Philip Coleman Luckey Jr, P David Roland, Gunther M Stoeckli, Fabian Yang, Mingming Bauer, Gerry P Lee, Yen-Jie Loizides, Constantinos Roland, Christof E Sumorok, Konstanty C Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(s)NN=2.76 TeV |
| title | Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(s)NN=2.76 TeV |
| title_full | Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(s)NN=2.76 TeV |
| title_fullStr | Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(s)NN=2.76 TeV |
| title_full_unstemmed | Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(s)NN=2.76 TeV |
| title_short | Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(s)NN=2.76 TeV |
| title_sort | indications of suppression of excited upsilon states in pb pb collisions at root s nn 2 76 tev |
| url | http://hdl.handle.net/1721.1/66979 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/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 |
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