Measurement of Jet Multiplicity Distributions in t[bar over t] Production in pp Collisions at √s = 7 TeV
The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channel...
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| Materialtyp: | Artikel |
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Springer-Verlag
2014
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| Länkar: | http://hdl.handle.net/1721.1/91191 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 |
| _version_ | 1826190708026900480 |
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| author | Apyan, Aram Gauer, Gerry P. 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 Yoon, A. S. Zanetti, Marco Barbieri, Richard Alexander Dutta, Valentina Levin, Andrew Michael Roland, Gunther M Stoeckli, Fabian Wyslouch, Victoria Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Yang, Mingming Bauer, Gerry P |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram Gauer, Gerry P. 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 Yoon, A. S. Zanetti, Marco Barbieri, Richard Alexander Dutta, Valentina Levin, Andrew Michael Roland, Gunther M Stoeckli, Fabian Wyslouch, Victoria Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Yang, Mingming Bauer, Gerry P |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data corresponding to an integrated luminosity of 5.0 fb[superscript −1]. Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the t[bar over t] production is determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed. |
| first_indexed | 2024-09-23T08:44:09Z |
| format | Article |
| id | mit-1721.1/91191 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:44:09Z |
| publishDate | 2014 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/911912023-02-26T07:47:47Z Measurement of Jet Multiplicity Distributions in t[bar over t] Production in pp Collisions at √s = 7 TeV Apyan, Aram Gauer, Gerry P. 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 Yoon, A. S. Zanetti, Marco Barbieri, Richard Alexander Dutta, Valentina Levin, Andrew Michael Roland, Gunther M Stoeckli, Fabian Wyslouch, Victoria Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Yang, Mingming Bauer, Gerry P 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 Sumorok, Konstanty C. Velicanu, Dragos Alexandru Veverka, Jan Wyslouch, Boleslaw Yang, M. Yoon, A. S. Zanetti, Marco Zhukova, Victoria The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data corresponding to an integrated luminosity of 5.0 fb[superscript −1]. Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the t[bar over t] production is determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed. United States. Dept. of Energy National Science Foundation (U.S.) 2014-10-27T17:08:44Z 2014-10-27T17:08:44Z 2014-08 2014-04 Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/91191 Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Measurement of Jet Multiplicity Distributions in t[bar over t] Production in pp Collisions at √s = 7 TeV.” Eur. Phys. J. C 74, no. 8 (August 2014). © 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/0000-0002-9418-6656 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/10.1140/epjc/s10052-014-3014-0 The European Physical Journal C Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer-Verlag |
| spellingShingle | Apyan, Aram Gauer, Gerry P. 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 Yoon, A. S. Zanetti, Marco Barbieri, Richard Alexander Dutta, Valentina Levin, Andrew Michael Roland, Gunther M Stoeckli, Fabian Wyslouch, Victoria Lee, Yen-Jie Luckey Jr, P David Roland, Christof E Sumorok, Konstanty C Yang, Mingming Bauer, Gerry P Measurement of Jet Multiplicity Distributions in t[bar over t] Production in pp Collisions at √s = 7 TeV |
| title | Measurement of Jet Multiplicity Distributions in t[bar over t] Production in pp Collisions at √s = 7 TeV |
| title_full | Measurement of Jet Multiplicity Distributions in t[bar over t] Production in pp Collisions at √s = 7 TeV |
| title_fullStr | Measurement of Jet Multiplicity Distributions in t[bar over t] Production in pp Collisions at √s = 7 TeV |
| title_full_unstemmed | Measurement of Jet Multiplicity Distributions in t[bar over t] Production in pp Collisions at √s = 7 TeV |
| title_short | Measurement of Jet Multiplicity Distributions in t[bar over t] Production in pp Collisions at √s = 7 TeV |
| title_sort | measurement of jet multiplicity distributions in t bar over t production in pp collisions at √s 7 tev |
| url | http://hdl.handle.net/1721.1/91191 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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