Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at √ s = 13 TeV
A search for decays of the Higgs and Z boson to pairs of J/ψ or Y(nS) (n = 1, 2, 3) mesons, with their subsequent decay to μ+μ− pairs, is presented. The analysis uses data from proton-proton collisions at s=13TeV, collected with the CMS detector at the LHC in 2017 and corresponding to an integrated...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier BV
2020
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| Online Access: | https://hdl.handle.net/1721.1/126755 |
| _version_ | 1810990718554996736 |
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| author | CMS Collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Y. -J. Levin, A. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Roland, Christof Roland, G. Stephans, George S. F. Sumorok, Konstanty C Tatar, K. Velicanu, Dragos Alexandru Wang, J Wang, T.W. Wyslouch, Boleslaw Shi, Zhaozhong |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics CMS Collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Y. -J. Levin, A. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Roland, Christof Roland, G. Stephans, George S. F. Sumorok, Konstanty C Tatar, K. Velicanu, Dragos Alexandru Wang, J Wang, T.W. Wyslouch, Boleslaw Shi, Zhaozhong |
| author_sort | CMS Collaboration |
| collection | MIT |
| description | A search for decays of the Higgs and Z boson to pairs of J/ψ or Y(nS) (n = 1, 2, 3) mesons, with their subsequent decay to μ+μ− pairs, is presented. The analysis uses data from proton-proton collisions at s=13TeV, collected with the CMS detector at the LHC in 2017 and corresponding to an integrated luminosity of 37.5fb−1. While an observation of such a decay with this sample would indicate the presence of physics beyond the standard model, no significant excess is observed. Upper limits at 95% confidence level are placed on the branching fractions of these decays. In the J/ψ pair channel, the limits are 1.8×10−3 and 2.2×10−6 for the Higgs and Z boson, respectively, while in the combined Y(nS) pair channel, the limits are 1.4×10−3 and 1.5×10−6, respectively, when the mesons from the Higgs and Z boson decay are assumed to be unpolarized. When fully longitudinal and transverse polarizations are considered the limits reduce by about 22–29% and increase by about 10–13%, respectively. |
| first_indexed | 2024-09-23T12:42:15Z |
| format | Article |
| id | mit-1721.1/126755 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:42:15Z |
| publishDate | 2020 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | mit-1721.1/1267552022-09-28T09:34:00Z Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at √ s = 13 TeV CMS Collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Y. -J. Levin, A. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Roland, Christof Roland, G. Stephans, George S. F. Sumorok, Konstanty C Tatar, K. Velicanu, Dragos Alexandru Wang, J Wang, T.W. Wyslouch, Boleslaw Shi, Zhaozhong Massachusetts Institute of Technology. Department of Physics A search for decays of the Higgs and Z boson to pairs of J/ψ or Y(nS) (n = 1, 2, 3) mesons, with their subsequent decay to μ+μ− pairs, is presented. The analysis uses data from proton-proton collisions at s=13TeV, collected with the CMS detector at the LHC in 2017 and corresponding to an integrated luminosity of 37.5fb−1. While an observation of such a decay with this sample would indicate the presence of physics beyond the standard model, no significant excess is observed. Upper limits at 95% confidence level are placed on the branching fractions of these decays. In the J/ψ pair channel, the limits are 1.8×10−3 and 2.2×10−6 for the Higgs and Z boson, respectively, while in the combined Y(nS) pair channel, the limits are 1.4×10−3 and 1.5×10−6, respectively, when the mesons from the Higgs and Z boson decay are assumed to be unpolarized. When fully longitudinal and transverse polarizations are considered the limits reduce by about 22–29% and increase by about 10–13%, respectively. 2020-08-24T17:02:42Z 2020-08-24T17:02:42Z 2019-10 2020-03-03T19:30:44Z Article http://purl.org/eprint/type/JournalArticle 0370-2693 1873-2445 https://hdl.handle.net/1721.1/126755 CMS Collaboration (Sirunyan, A.M. et al.) "Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at √ s = 13 TeV." Physics Letters B 797 (October 2019): 134811 ©2019 Author(s) en 10.1016/J.PHYSLETB.2019.134811 Physics Letters B Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier BV Elsevier |
| spellingShingle | CMS Collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Y. -J. Levin, A. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Roland, Christof Roland, G. Stephans, George S. F. Sumorok, Konstanty C Tatar, K. Velicanu, Dragos Alexandru Wang, J Wang, T.W. Wyslouch, Boleslaw Shi, Zhaozhong Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at √ s = 13 TeV |
| title | Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at √ s = 13 TeV |
| title_full | Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at √ s = 13 TeV |
| title_fullStr | Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at √ s = 13 TeV |
| title_full_unstemmed | Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at √ s = 13 TeV |
| title_short | Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at √ s = 13 TeV |
| title_sort | search for higgs and z boson decays to j ψ or y pairs in the four muon final state in proton proton collisions at √ s 13 tev |
| url | https://hdl.handle.net/1721.1/126755 |
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