Search for vectorlike charge 2/3T quarks in proton-proton collisions at √(s) = 8 TeV
A search for fermionic top quark partners T of charge 2/3 is presented. The search is carried out in proton-proton collisions corresponding to an integrated luminosity of 19.7 fb[superscript −1] collected at a center-of-mass energy of √s = 8 TeV with the CMS detector at the LHC. The T quarks are a...
| _version_ | 1826206178210742272 |
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| author | Apyan, Aram Barbieri, Richard Alexander Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Salfeld-Nebgen, Jakob Maxillia Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Sumorok, Konstanty C Varma, Mukund Madhav Wyslouch, Victoria Luckey Jr, P David Roland, Christof E Roland, Gunther M |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram Barbieri, Richard Alexander Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Salfeld-Nebgen, Jakob Maxillia Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Sumorok, Konstanty C Varma, Mukund Madhav Wyslouch, Victoria Luckey Jr, P David Roland, Christof E Roland, Gunther M |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | A search for fermionic top quark partners T of charge 2/3 is presented. The search is carried out in proton-proton collisions corresponding to an integrated luminosity of 19.7 fb[superscript −1] collected at a center-of-mass energy of √s = 8 TeV with the CMS detector at the LHC. The T quarks are assumed to be produced strongly in pairs and can decay into tH, tZ, and bW. The search is performed in five exclusive channels: a single-lepton channel, a multilepton channel, two all-hadronic channels optimized either for the bW or the tH decay, and one channel in which the Higgs boson decays into two photons. The results are found to be compatible with the standard model expectations in all the investigated final states. A statistical combination of these results is performed and lower limits on the T quark mass are set. Depending on the branching fractions, lower mass limits between 720 and 920 GeV at 95% confidence level are found. These are among the strongest limits on vectorlike T quarks obtained to date. |
| first_indexed | 2024-09-23T13:25:20Z |
| format | Article |
| id | mit-1721.1/101632 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:25:20Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1016322023-02-26T06:03:48Z Search for vectorlike charge 2/3T quarks in proton-proton collisions at √(s) = 8 TeV Apyan, Aram Barbieri, Richard Alexander Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Salfeld-Nebgen, Jakob Maxillia Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Sumorok, Konstanty C Varma, Mukund Madhav Wyslouch, Victoria Luckey Jr, P David Roland, Christof E Roland, Gunther M Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Apyan, Aram Barbieri, Richard Alexander Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Luckey, P. David, Jr. Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Salfeld-Nebgen, Jakob Maxillia Stephans, George S. F. Sumorok, Konstanty C. Varma, Mukund Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Zhukova, Victoria A search for fermionic top quark partners T of charge 2/3 is presented. The search is carried out in proton-proton collisions corresponding to an integrated luminosity of 19.7 fb[superscript −1] collected at a center-of-mass energy of √s = 8 TeV with the CMS detector at the LHC. The T quarks are assumed to be produced strongly in pairs and can decay into tH, tZ, and bW. The search is performed in five exclusive channels: a single-lepton channel, a multilepton channel, two all-hadronic channels optimized either for the bW or the tH decay, and one channel in which the Higgs boson decays into two photons. The results are found to be compatible with the standard model expectations in all the investigated final states. A statistical combination of these results is performed and lower limits on the T quark mass are set. Depending on the branching fractions, lower mass limits between 720 and 920 GeV at 95% confidence level are found. These are among the strongest limits on vectorlike T quarks obtained to date. United States. Dept. of Energy National Science Foundation (U.S.) 2016-03-08T02:38:47Z 2016-03-08T02:38:47Z 2016-01 Article http://purl.org/eprint/type/JournalArticle 2470-0010 2470-0029 http://hdl.handle.net/1721.1/101632 Khachatryan, V., A. M. Sirunyan, A. Tumasyan, W. Adam, E. Asilar, T. Bergauer, J. Brandstetter, et al. “Search for Vectorlike Charge 2/3T Quarks in Proton-Proton Collisions at √(s) = 8 TeV.” Phys. Rev. D 93, no. 1 (January 19, 2016). © 2016 CERN, for the CMS Collaboration https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0001-6332-5839 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-7945-005X https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0001-5310-3466 https://orcid.org/0000-0001-8521-737X https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0003-1281-0193 https://orcid.org/0000-0002-0899-7621 https://orcid.org/0000-0002-1136-6900 https://orcid.org/0000-0001-7842-1591 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-8261-8346 https://orcid.org/0000-0002-8590-2673 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0002-8599-2437 https://orcid.org/0000-0003-4511-0855 https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-8297-5930 https://orcid.org/0000-0003-2351-0487 https://orcid.org/0000-0002-2622-8295 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 en_US http://dx.doi.org/10.1103/PhysRevD.93.012003 Physical Review D Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf American Physical Society American Physical Society |
| spellingShingle | Apyan, Aram Barbieri, Richard Alexander Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Salfeld-Nebgen, Jakob Maxillia Stephans, George S. F. Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Sumorok, Konstanty C Varma, Mukund Madhav Wyslouch, Victoria Luckey Jr, P David Roland, Christof E Roland, Gunther M Search for vectorlike charge 2/3T quarks in proton-proton collisions at √(s) = 8 TeV |
| title | Search for vectorlike charge 2/3T quarks in proton-proton collisions at √(s) = 8 TeV |
| title_full | Search for vectorlike charge 2/3T quarks in proton-proton collisions at √(s) = 8 TeV |
| title_fullStr | Search for vectorlike charge 2/3T quarks in proton-proton collisions at √(s) = 8 TeV |
| title_full_unstemmed | Search for vectorlike charge 2/3T quarks in proton-proton collisions at √(s) = 8 TeV |
| title_short | Search for vectorlike charge 2/3T quarks in proton-proton collisions at √(s) = 8 TeV |
| title_sort | search for vectorlike charge 2 3t quarks in proton proton collisions at √ s 8 tev |
| url | http://hdl.handle.net/1721.1/101632 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0001-6332-5839 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-7945-005X https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0001-5310-3466 https://orcid.org/0000-0001-8521-737X https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0003-1281-0193 https://orcid.org/0000-0002-0899-7621 https://orcid.org/0000-0002-1136-6900 https://orcid.org/0000-0001-7842-1591 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-8261-8346 https://orcid.org/0000-0002-8590-2673 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0002-8599-2437 https://orcid.org/0000-0003-4511-0855 https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-8297-5930 https://orcid.org/0000-0003-2351-0487 https://orcid.org/0000-0002-2622-8295 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 |
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