Measurement of the mass difference between top and antitop quarks
A measurement of the mass difference between the top and the antitop quark (Δm [subscript t] = m [subscript t] − m[¯ over t] ) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data collected by the CMS experiment at the LHC, cor...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2014
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| Online Access: | http://hdl.handle.net/1721.1/86196 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/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 |
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| author | Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wyslouch, Boleslaw Yilmaz, Yetkin Zanetti, Marco Rudolph, Matthew Scott Stoeckli, Fabian Yang, Mingming Yoon, A. S. Roland, Christof E Sumorok, Konstanty C Wolf, Roger Xie, Si Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Luckey Jr, P David Roland, Gunther M |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wyslouch, Boleslaw Yilmaz, Yetkin Zanetti, Marco Rudolph, Matthew Scott Stoeckli, Fabian Yang, Mingming Yoon, A. S. Roland, Christof E Sumorok, Konstanty C Wolf, Roger Xie, Si Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Luckey Jr, P David Roland, Gunther M |
| author_sort | Bendavid, Joshua L. |
| collection | MIT |
| description | A measurement of the mass difference between the top and the antitop quark (Δm [subscript t] = m [subscript t] − m[¯ over t] ) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.96±0.11 fb[superscript −1], and yields the value of Δm [subscript t] = −0.44±0.46 (stat.)±0.27 (syst.) GeV. This result is consistent with equality of particle and antiparticle masses required by CPT invariance, and provides a significantly improved precision relative to existing measurements. |
| first_indexed | 2024-09-23T16:37:39Z |
| format | Article |
| id | mit-1721.1/86196 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:37:39Z |
| publishDate | 2014 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/861962023-02-26T08:00:03Z Measurement of the mass difference between top and antitop quarks Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wyslouch, Boleslaw Yilmaz, Yetkin Zanetti, Marco Rudolph, Matthew Scott Stoeckli, Fabian Yang, Mingming Yoon, A. S. Roland, Christof E Sumorok, Konstanty C Wolf, Roger Xie, Si Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Luckey Jr, P David Roland, Gunther M Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Massachusetts Institute of Technology. School of Science Bauer, Gerry P. Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, V. Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Lee, Y.-J. Li, W. Luckey, P. David, Jr. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Rudolph, M. Stephans, George S. F. Stockli, Fabian Sumorok, Konstanty C. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wolf, R. Wyslouch, Boleslaw Xie, S. Yang, M. Yilmaz, Yetkin Yoon, A.S. Zanetti, Marco A measurement of the mass difference between the top and the antitop quark (Δm [subscript t] = m [subscript t] − m[¯ over t] ) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.96±0.11 fb[superscript −1], and yields the value of Δm [subscript t] = −0.44±0.46 (stat.)±0.27 (syst.) GeV. This result is consistent with equality of particle and antiparticle masses required by CPT invariance, and provides a significantly improved precision relative to existing measurements. National Science Foundation (U.S.) United States. Dept. of Energy Alfred P. Sloan Foundation 2014-04-17T14:49:46Z 2014-04-17T14:49:46Z 2012-06 2012-05 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/86196 Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Measurement of the Mass Difference Between Top and Antitop Quarks.” J. High Energ. Phys. 2012, no. 6 (June 2012). © 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/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 en_US http://dx.doi.org/10.1007/jhep06(2012)109 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf Springer-Verlag Springer |
| spellingShingle | Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Stephans, George S. F. Sung, Kevin Kai Hong Velicanu, Dragos Alexandru Wenger, Edward Allen Wyslouch, Boleslaw Yilmaz, Yetkin Zanetti, Marco Rudolph, Matthew Scott Stoeckli, Fabian Yang, Mingming Yoon, A. S. Roland, Christof E Sumorok, Konstanty C Wolf, Roger Xie, Si Bauer, Gerry P Dutta, Valentina Lee, Yen-Jie Luckey Jr, P David Roland, Gunther M Measurement of the mass difference between top and antitop quarks |
| title | Measurement of the mass difference between top and antitop quarks |
| title_full | Measurement of the mass difference between top and antitop quarks |
| title_fullStr | Measurement of the mass difference between top and antitop quarks |
| title_full_unstemmed | Measurement of the mass difference between top and antitop quarks |
| title_short | Measurement of the mass difference between top and antitop quarks |
| title_sort | measurement of the mass difference between top and antitop quarks |
| url | http://hdl.handle.net/1721.1/86196 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/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 |
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