Measurement of the Υ(1S), Υ(2S), and Υ(3S) Polarizations in pp Collisions at √s=7 TeV
The polarizations of the Υ(1S), Υ(2S), and Υ(3S) mesons are measured in proton-proton collisions at √s=7 TeV, using a data sample of Υ(nS)→μ[superscript +]μ[superscript -] decays collected by the CMS experiment, corresponding to an integrated luminosity of 4.9 fb[superscript -1]. The dimuon decay...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/78626 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 https://orcid.org/0000-0002-1136-6900 |
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| author | Apyan, Aram Bauer, Gerry P. Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, V. Gomez-Ceballos, Guillelmo Goncharov, Maxim Kim, Y. Klute, Markus Krajczar, Krisztian F. Levin, A. Luckey, P. David, Jr. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Rudolph, M. Stephans, George S. F. Stockli, Fabian Sumorok, Konstanty C. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wolf, R. Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Zhukova, Victoria |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram Bauer, Gerry P. Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, V. Gomez-Ceballos, Guillelmo Goncharov, Maxim Kim, Y. Klute, Markus Krajczar, Krisztian F. Levin, A. Luckey, P. David, Jr. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Rudolph, M. Stephans, George S. F. Stockli, Fabian Sumorok, Konstanty C. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wolf, R. Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Zhukova, Victoria |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | The polarizations of the Υ(1S), Υ(2S), and Υ(3S) mesons are measured in proton-proton collisions at √s=7 TeV, using a data sample of Υ(nS)→μ[superscript +]μ[superscript -] decays collected by the CMS experiment, corresponding to an integrated luminosity of 4.9 fb[superscript -1]. The dimuon decay angular distributions are analyzed in three different polarization frames. The polarization parameters λ[subscript ϑ], λ[subscript φ], and λ[subscript ϑφ], as well as the frame-invariant quantity λ˜, are presented as a function of the Υ(nS) transverse momentum between 10 and 50 GeV, in the rapidity ranges |y|<0.6 and 0.6<|y|<1.2. No evidence of large transverse or longitudinal polarizations is seen in the explored kinematic region. |
| first_indexed | 2024-09-23T10:43:19Z |
| format | Article |
| id | mit-1721.1/78626 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:43:19Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/786262022-09-30T22:30:42Z Measurement of the Υ(1S), Υ(2S), and Υ(3S) Polarizations in pp Collisions at √s=7 TeV Apyan, Aram Bauer, Gerry P. Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, V. Gomez-Ceballos, Guillelmo Goncharov, Maxim Kim, Y. Klute, Markus Krajczar, Krisztian F. Levin, A. Luckey, P. David, Jr. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Rudolph, M. Stephans, George S. F. Stockli, Fabian Sumorok, Konstanty C. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wolf, R. Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Zhukova, Victoria Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Massachusetts Institute of Technology. School of Science Apyan, Aram Bauer, Gerry P. Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, V. Gomez-Ceballos, Guillelmo Goncharov, Maxim Kim, Y. Klute, Markus Krajczar, Krisztian F. Levin, A. Luckey, P. David, Jr. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Rudolph, M. Stephans, George S. F. Stockli, Fabian Sumorok, Konstanty C. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wolf, R. Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Zhukova, Victoria The polarizations of the Υ(1S), Υ(2S), and Υ(3S) mesons are measured in proton-proton collisions at √s=7 TeV, using a data sample of Υ(nS)→μ[superscript +]μ[superscript -] decays collected by the CMS experiment, corresponding to an integrated luminosity of 4.9 fb[superscript -1]. The dimuon decay angular distributions are analyzed in three different polarization frames. The polarization parameters λ[subscript ϑ], λ[subscript φ], and λ[subscript ϑφ], as well as the frame-invariant quantity λ˜, are presented as a function of the Υ(nS) transverse momentum between 10 and 50 GeV, in the rapidity ranges |y|<0.6 and 0.6<|y|<1.2. No evidence of large transverse or longitudinal polarizations is seen in the explored kinematic region. United States. Dept. of Energy National Science Foundation (U.S.) 2013-04-26T18:14:17Z 2013-04-26T18:14:17Z 2013-02 2012-09 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/78626 Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, et al. Measurement of the Υ(1S), Υ(2S), and Υ(3S) Polarizations in Pp Collisions at Sqrt[s]=7 TeV. Physical Review Letters 110(8), 2013. © 2013 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/0000-0003-3681-0649 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0002-1136-6900 en_US http://dx.doi.org/10.1103/PhysRevLett.110.081802 Physical Review Letters Creative Commons Attribution 3.0 http://creativecommons.org/licenses/by/3.0/ application/pdf American Physical Society APS |
| spellingShingle | Apyan, Aram Bauer, Gerry P. Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, V. Gomez-Ceballos, Guillelmo Goncharov, Maxim Kim, Y. Klute, Markus Krajczar, Krisztian F. Levin, A. Luckey, P. David, Jr. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Rudolph, M. Stephans, George S. F. Stockli, Fabian Sumorok, Konstanty C. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wolf, R. Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Zhukova, Victoria Measurement of the Υ(1S), Υ(2S), and Υ(3S) Polarizations in pp Collisions at √s=7 TeV |
| title | Measurement of the Υ(1S), Υ(2S), and Υ(3S) Polarizations in pp Collisions at √s=7 TeV |
| title_full | Measurement of the Υ(1S), Υ(2S), and Υ(3S) Polarizations in pp Collisions at √s=7 TeV |
| title_fullStr | Measurement of the Υ(1S), Υ(2S), and Υ(3S) Polarizations in pp Collisions at √s=7 TeV |
| title_full_unstemmed | Measurement of the Υ(1S), Υ(2S), and Υ(3S) Polarizations in pp Collisions at √s=7 TeV |
| title_short | Measurement of the Υ(1S), Υ(2S), and Υ(3S) Polarizations in pp Collisions at √s=7 TeV |
| title_sort | measurement of the υ 1s υ 2s and υ 3s polarizations in pp collisions at √s 7 tev |
| url | http://hdl.handle.net/1721.1/78626 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 https://orcid.org/0000-0002-1136-6900 |
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