Study of Z production in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV in the dimuon and dielectron decay channels
The production of Z bosons is studied in the dimuon and dielectron decay channels in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV, using data collected by the CMS experiment at the LHC. The PbPb data sample corresponds to an integrated luminosity of about 166 μb[superscript −1], while the p...
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2015
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| Online Access: | http://hdl.handle.net/1721.1/96841 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 Barbieri, Richard Alexander Busza, Wit Cali, Ivan Amos Di Matteo, Leonardo Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yang, Mingming Zanetti, Marco Wyslouch, Victoria Bauer, Gerry P Chan, M. Luckey Jr, P David Roland, Christof E Roland, Gunther M Stoeckli, Fabian Sumorok, Konstanty C |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram Barbieri, Richard Alexander Busza, Wit Cali, Ivan Amos Di Matteo, Leonardo Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yang, Mingming Zanetti, Marco Wyslouch, Victoria Bauer, Gerry P Chan, M. Luckey Jr, P David Roland, Christof E Roland, Gunther M Stoeckli, Fabian Sumorok, Konstanty C |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | The production of Z bosons is studied in the dimuon and dielectron decay channels in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV, using data collected by the CMS experiment at the LHC. The PbPb data sample corresponds to an integrated luminosity of about 166 μb[superscript −1], while the pp data sample collected in 2013 at the same nucleon-nucleon centre-of-mass energy has an integrated luminosity of 5.4 pb[superscript −1]. The Z boson yield is measured as a function of rapidity, transverse momentum, and collision centrality. The ratio of PbPb to pp yields, scaled by the number of inelastic nucleon-nucleon collisions, is found to be 1.06 ± 0.05 (stat) ± 0.08 (syst) in the dimuon channel and 1.02 ± 0.08 (stat) ± 0.15 (syst) in the dielectron channel, for centrality-integrated Z boson production. This binary collision scaling is seen to hold in the entire kinematic region studied, as expected for a colourless probe that is unaffected by the hot and dense QCD medium produced in heavy ion collisions. |
| first_indexed | 2024-09-23T17:02:23Z |
| format | Article |
| id | mit-1721.1/96841 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T17:02:23Z |
| publishDate | 2015 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/968412023-02-26T10:47:50Z Study of Z production in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV in the dimuon and dielectron decay channels Apyan, Aram Barbieri, Richard Alexander Busza, Wit Cali, Ivan Amos Di Matteo, Leonardo Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yang, Mingming Zanetti, Marco Wyslouch, Victoria Bauer, Gerry P Chan, M. Luckey Jr, P David Roland, Christof E Roland, Gunther M Stoeckli, Fabian Sumorok, Konstanty C 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, Richard Alexander Bauer, Gerry P. Busza, Wit Cali, Ivan Amos Chan, Matthew Hans Di Matteo, Leonardo Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael 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, Mingming Zanetti, Marco Zhukova, Victoria The production of Z bosons is studied in the dimuon and dielectron decay channels in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV, using data collected by the CMS experiment at the LHC. The PbPb data sample corresponds to an integrated luminosity of about 166 μb[superscript −1], while the pp data sample collected in 2013 at the same nucleon-nucleon centre-of-mass energy has an integrated luminosity of 5.4 pb[superscript −1]. The Z boson yield is measured as a function of rapidity, transverse momentum, and collision centrality. The ratio of PbPb to pp yields, scaled by the number of inelastic nucleon-nucleon collisions, is found to be 1.06 ± 0.05 (stat) ± 0.08 (syst) in the dimuon channel and 1.02 ± 0.08 (stat) ± 0.15 (syst) in the dielectron channel, for centrality-integrated Z boson production. This binary collision scaling is seen to hold in the entire kinematic region studied, as expected for a colourless probe that is unaffected by the hot and dense QCD medium produced in heavy ion collisions. United States. Dept. of Energy National Science Foundation (U.S.) Alfred P. Sloan Foundation 2015-04-29T13:48:41Z 2015-04-29T13:48:41Z 2015-03 2015-01 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/96841 Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, W. Adam, T. Bergauer, M. Dragicevic, J. Ero, et al. “Study of Z Production in PbPb and Pp Collisions at √s[subscript NN] = 2.76 TeV in the Dimuon and Dielectron Decay Channels.” J. High Energ. Phys. 2015, no. 3 (March 2015). © 2015 CERN, for the benefit of 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/10.1007/JHEP03(2015)022 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer-Verlag |
| spellingShingle | Apyan, Aram Barbieri, Richard Alexander Busza, Wit Cali, Ivan Amos Di Matteo, Leonardo Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yang, Mingming Zanetti, Marco Wyslouch, Victoria Bauer, Gerry P Chan, M. Luckey Jr, P David Roland, Christof E Roland, Gunther M Stoeckli, Fabian Sumorok, Konstanty C Study of Z production in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV in the dimuon and dielectron decay channels |
| title | Study of Z production in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV in the dimuon and dielectron decay channels |
| title_full | Study of Z production in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV in the dimuon and dielectron decay channels |
| title_fullStr | Study of Z production in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV in the dimuon and dielectron decay channels |
| title_full_unstemmed | Study of Z production in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV in the dimuon and dielectron decay channels |
| title_short | Study of Z production in PbPb and pp collisions at √s[subscript NN] = 2.76 TeV in the dimuon and dielectron decay channels |
| title_sort | study of z production in pbpb and pp collisions at √s subscript nn 2 76 tev in the dimuon and dielectron decay channels |
| url | http://hdl.handle.net/1721.1/96841 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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