Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV
A search for excited quarks decaying into the γ+jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb[superscript −1] collected by the CMS experiment in proton–proton collisions at √s = 8 TeV at the LHC. Events with photons and jets with hig...
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| Format: | Article |
| Language: | en_US |
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Elsevier
2015
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| Online Access: | http://hdl.handle.net/1721.1/92577 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 Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Zanetti, Marco Levin, Andrew Michael Roland, Gunther M Stoeckli, Fabian Yang, Mingming Wyslouch, Victoria Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Barbieri, Richard Alexander |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Zanetti, Marco Levin, Andrew Michael Roland, Gunther M Stoeckli, Fabian Yang, Mingming Wyslouch, Victoria Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Barbieri, Richard Alexander |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | A search for excited quarks decaying into the γ+jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb[superscript −1] collected by the CMS experiment in proton–proton collisions at √s = 8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the γ+jetγ+jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners. |
| first_indexed | 2024-09-23T15:19:37Z |
| format | Article |
| id | mit-1721.1/92577 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:19:37Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/925772023-02-26T08:15:31Z Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV Apyan, Aram Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Zanetti, Marco Levin, Andrew Michael Roland, Gunther M Stoeckli, Fabian Yang, Mingming Wyslouch, Victoria Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Barbieri, Richard Alexander 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, R. Bauer, Gerry P. Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Dutta, V. Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Lee, Y.-J. Levin, A. 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 Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yang, M. Zanetti, Marco Zhukova, Victoria Sumorok, Konstanty C. A search for excited quarks decaying into the γ+jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb[superscript −1] collected by the CMS experiment in proton–proton collisions at √s = 8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the γ+jetγ+jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners. European Organization for Nuclear Research United States. Dept. of Energy National Science Foundation (U.S.) 2015-01-05T15:28:57Z 2015-01-05T15:28:57Z 2014-09 2014-09 Article http://purl.org/eprint/type/JournalArticle 03702693 http://hdl.handle.net/1721.1/92577 V. Khachatryan, et al. “Search for Excited Quarks in the γ + Jet Final State in Proton-proton Collisions at √s = 8 TeV.” Physics Letters B 738 (November 2014): 274–293. 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/10.1016/j.physletb.2014.09.048 Physics Letters B Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier Elsevier |
| spellingShingle | Apyan, Aram Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Klute, Markus Lai, Yue Shi Ma, Teng Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Zanetti, Marco Levin, Andrew Michael Roland, Gunther M Stoeckli, Fabian Yang, Mingming Wyslouch, Victoria Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Barbieri, Richard Alexander Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV |
| title | Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV |
| title_full | Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV |
| title_fullStr | Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV |
| title_full_unstemmed | Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV |
| title_short | Search for excited quarks in the γ + jet final state in proton-proton collisions at √s = 8 TeV |
| title_sort | search for excited quarks in the γ jet final state in proton proton collisions at √s 8 tev |
| url | http://hdl.handle.net/1721.1/92577 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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