Search for anomalous single top quark production in association with a photon in pp collisions at √s = 8 TeV
The result of a search for flavor changing neutral currents (FCNC) through single top quark production in association with a photon is presented. The study is based on proton-proton collisions at a center-of-mass energy of 8 TeV using data collected with the CMS detector at the LHC, corresponding to...
| _version_ | 1826211673399099392 |
|---|---|
| author | Apyan, Aram Barbieri, Riccardo 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 Jr, P David 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 Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram Barbieri, Riccardo 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 Jr, P David 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 Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | The result of a search for flavor changing neutral currents (FCNC) through single top quark production in association with a photon is presented. The study is based on proton-proton collisions at a center-of-mass energy of 8 TeV using data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 19.8 fb[superscript −1]. The search for tγ events where t → Wb and W → μν is conducted in final states with a muon, a photon, at least one hadronic jet with at most one being consistent with originating from a bottom quark, and missing transverse momentum. No evidence of single top quark production in association with a photon through a FCNC is observed. Upper limits at the 95% confidence level are set on the tuγ and tcγ anomalous couplings and translated into upper limits on the branching fraction of the FCNC top quark decays: ℬ(t → uγ) < 1.3 × 10− 4 and ℬ(t → cγ) < 1.7 × 10[superscript − 3]. Upper limits are also set on the cross section of associated tγ production in a restricted phase-space region. These are the most stringent limits currently available. |
| first_indexed | 2024-09-23T15:09:42Z |
| format | Article |
| id | mit-1721.1/107623 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:09:42Z |
| publishDate | 2017 |
| publisher | Springer-Verlag/SISSA |
| record_format | dspace |
| spelling | mit-1721.1/1076232022-09-29T13:06:26Z Search for anomalous single top quark production in association with a photon in pp collisions at √s = 8 TeV Apyan, Aram Barbieri, Riccardo 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 Jr, P David 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 Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Apyan, Aram Barbieri, Riccardo 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 Jr, P David 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 Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria The result of a search for flavor changing neutral currents (FCNC) through single top quark production in association with a photon is presented. The study is based on proton-proton collisions at a center-of-mass energy of 8 TeV using data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 19.8 fb[superscript −1]. The search for tγ events where t → Wb and W → μν is conducted in final states with a muon, a photon, at least one hadronic jet with at most one being consistent with originating from a bottom quark, and missing transverse momentum. No evidence of single top quark production in association with a photon through a FCNC is observed. Upper limits at the 95% confidence level are set on the tuγ and tcγ anomalous couplings and translated into upper limits on the branching fraction of the FCNC top quark decays: ℬ(t → uγ) < 1.3 × 10− 4 and ℬ(t → cγ) < 1.7 × 10[superscript − 3]. Upper limits are also set on the cross section of associated tγ production in a restricted phase-space region. These are the most stringent limits currently available. United States. Dept. of Energy National Science Foundation (U.S.) 2017-03-21T17:41:09Z 2017-03-21T17:41:09Z 2016-04 2016-02 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/107623 The CMS collaboration et al. “Search for Anomalous Single Top Quark Production in Association with a Photon in Pp Collisions at √S = 8 TeV.” Journal of High Energy Physics 2016.4 (2016): n. pag. https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-6166-448X https://orcid.org/0000-0001-5310-3466 https://orcid.org/0000-0002-2622-8295 https://orcid.org/0000-0002-8590-2673 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0001-8521-737X https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0002-8297-5930 https://orcid.org/0000-0003-4511-0855 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-1136-6900 https://orcid.org/0000-0003-2351-0487 https://orcid.org/0000-0003-1281-0193 https://orcid.org/0000-0002-8599-2437 https://orcid.org/0000-0001-7842-1591 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0003-3879-5622 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-8261-8346 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-0899-7621 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0001-6332-5839 en_US http://dx.doi.org/10.1007/JHEP04(2016)035 Journal of High Energy Physics Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag/SISSA Springer |
| spellingShingle | Apyan, Aram Barbieri, Riccardo 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 Jr, P David 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 Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria Search for anomalous single top quark production in association with a photon in pp collisions at √s = 8 TeV |
| title | Search for anomalous single top quark production in association with a photon in pp collisions at √s = 8 TeV |
| title_full | Search for anomalous single top quark production in association with a photon in pp collisions at √s = 8 TeV |
| title_fullStr | Search for anomalous single top quark production in association with a photon in pp collisions at √s = 8 TeV |
| title_full_unstemmed | Search for anomalous single top quark production in association with a photon in pp collisions at √s = 8 TeV |
| title_short | Search for anomalous single top quark production in association with a photon in pp collisions at √s = 8 TeV |
| title_sort | search for anomalous single top quark production in association with a photon in pp collisions at √s 8 tev |
| url | http://hdl.handle.net/1721.1/107623 https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-6166-448X https://orcid.org/0000-0001-5310-3466 https://orcid.org/0000-0002-2622-8295 https://orcid.org/0000-0002-8590-2673 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0001-8521-737X https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0002-8297-5930 https://orcid.org/0000-0003-4511-0855 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-1136-6900 https://orcid.org/0000-0003-2351-0487 https://orcid.org/0000-0003-1281-0193 https://orcid.org/0000-0002-8599-2437 https://orcid.org/0000-0001-7842-1591 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0003-3879-5622 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-8261-8346 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-0899-7621 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0001-6332-5839 |
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