Determination of the top-quark pole mass and strong coupling constant from the t[bar over t] production cross section in pp collisions at √s = 7 TeV
The inclusive cross section for top-quark pair production measured by the CMS experiment in proton–proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass,...
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| Format: | Article |
| Language: | en_US |
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Elsevier
2014
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| Online Access: | http://hdl.handle.net/1721.1/87575 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/0000-0003-3681-0649 https://orcid.org/0000-0003-1486-606X 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 Kim, Y. Klute, Markus Lai, Yue Shi Nahn, Steven Paus, Christoph M. E. Stephans, George S. F. Velicanu, Dragos Alexandru Wyslouch, Boleslaw Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Ralph, Duncan Kelley Dutta, Valentina Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Wolf, Roger Yang, Mingming Wyslouch, Victoria Bauer, Gerry P Levin, Andrew Michael Ma, Teng Roland, Gunther M Stoeckli, Fabian |
| 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 Kim, Y. Klute, Markus Lai, Yue Shi Nahn, Steven Paus, Christoph M. E. Stephans, George S. F. Velicanu, Dragos Alexandru Wyslouch, Boleslaw Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Ralph, Duncan Kelley Dutta, Valentina Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Wolf, Roger Yang, Mingming Wyslouch, Victoria Bauer, Gerry P Levin, Andrew Michael Ma, Teng Roland, Gunther M Stoeckli, Fabian |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | The inclusive cross section for top-quark pair production measured by the CMS experiment in proton–proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass, m[pole over t], or the strong coupling constant, α[subscript S]. With the parton distribution function set NNPDF2.3, a pole mass of 176.7[+3.8 over −3.4] GeV is obtained when constraining α[subscript S] at the scale of the Z boson mass, m[subscript Z], to the current world average. Alternatively, by constraining m[pole over t] to the latest average from direct mass measurements, a value of α[subscript S](m[subscript Z])= 0.1151[+0.0033 over −0.0032] is extracted. This is the first determination of α[subscript S] using events from top-quark production. |
| first_indexed | 2024-09-23T16:44:10Z |
| format | Article |
| id | mit-1721.1/87575 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:44:10Z |
| publishDate | 2014 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/875752023-02-26T04:13:31Z Determination of the top-quark pole mass and strong coupling constant from the t[bar over t] production cross section in pp collisions at √s = 7 TeV Apyan, Aram Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Kim, Y. Klute, Markus Lai, Yue Shi Nahn, Steven Paus, Christoph M. E. Stephans, George S. F. Velicanu, Dragos Alexandru Wyslouch, Boleslaw Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Ralph, Duncan Kelley Dutta, Valentina Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Wolf, Roger Yang, Mingming Wyslouch, Victoria Bauer, Gerry P Levin, Andrew Michael Ma, Teng Roland, Gunther M Stoeckli, Fabian Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Massachusetts Institute of Technology. School of Science Apyan, Aram Bauer, Gerry P. Busza, Wit Cali, Ivan Amos Chan, M. Di Matteo, Leonardo Dutta, V. Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Kim, Y. Klute, Markus Lai, Yue Shi Levin, A. Luckey, P. David, Jr. Teng, Ma Nahn, Steven Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E. Roland, Gunther M. Stephans, George S. F. Stockli, Fabian Sumorok, Konstanty C. Velicanu, Dragos Alexandru Wolf, R. Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Zhukova, Victoria The inclusive cross section for top-quark pair production measured by the CMS experiment in proton–proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass, m[pole over t], or the strong coupling constant, α[subscript S]. With the parton distribution function set NNPDF2.3, a pole mass of 176.7[+3.8 over −3.4] GeV is obtained when constraining α[subscript S] at the scale of the Z boson mass, m[subscript Z], to the current world average. Alternatively, by constraining m[pole over t] to the latest average from direct mass measurements, a value of α[subscript S](m[subscript Z])= 0.1151[+0.0033 over −0.0032] is extracted. This is the first determination of α[subscript S] using events from top-quark production. United States. Dept. of Energy National Science Foundation (U.S.) 2014-05-29T18:43:31Z 2014-05-29T18:43:31Z 2013-12 2013-11 Article http://purl.org/eprint/type/JournalArticle 03702693 http://hdl.handle.net/1721.1/87575 Chatrchyan, S., et al. “Determination of the Top-Quark Pole Mass and Strong Coupling Constant t[bar over t] production cross section in pp collisions at √s = 7 TeV.” Physics Letters B 728 (January 2014): 496–517. doi:10.1016/j.physletb.2013.12.009. 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/0000-0003-3681-0649 https://orcid.org/0000-0003-1486-606X 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.2013.12.009 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 Kim, Y. Klute, Markus Lai, Yue Shi Nahn, Steven Paus, Christoph M. E. Stephans, George S. F. Velicanu, Dragos Alexandru Wyslouch, Boleslaw Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Ralph, Duncan Kelley Dutta, Valentina Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Wolf, Roger Yang, Mingming Wyslouch, Victoria Bauer, Gerry P Levin, Andrew Michael Ma, Teng Roland, Gunther M Stoeckli, Fabian Determination of the top-quark pole mass and strong coupling constant from the t[bar over t] production cross section in pp collisions at √s = 7 TeV |
| title | Determination of the top-quark pole mass and strong coupling constant from the t[bar over t] production cross section in pp collisions at √s = 7 TeV |
| title_full | Determination of the top-quark pole mass and strong coupling constant from the t[bar over t] production cross section in pp collisions at √s = 7 TeV |
| title_fullStr | Determination of the top-quark pole mass and strong coupling constant from the t[bar over t] production cross section in pp collisions at √s = 7 TeV |
| title_full_unstemmed | Determination of the top-quark pole mass and strong coupling constant from the t[bar over t] production cross section in pp collisions at √s = 7 TeV |
| title_short | Determination of the top-quark pole mass and strong coupling constant from the t[bar over t] production cross section in pp collisions at √s = 7 TeV |
| title_sort | determination of the top quark pole mass and strong coupling constant from the t bar over t production cross section in pp collisions at √s 7 tev |
| url | http://hdl.handle.net/1721.1/87575 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/0000-0003-3681-0649 https://orcid.org/0000-0003-1486-606X 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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