Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector
A measurement of the top-quark mass is presented using Tevatron data from proton-antiproton collisions at center-of-mass energy √s=1.96 TeV collected with the CDF II detector. Events are selected from a sample of candidates for production of tt̅ pairs that decay into the lepton+jets channel. The to...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society (APS)
2012
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| Online Access: | http://hdl.handle.net/1721.1/69069 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1826206657311408128 |
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| author | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | A measurement of the top-quark mass is presented using Tevatron data from proton-antiproton collisions at center-of-mass energy √s=1.96 TeV collected with the CDF II detector. Events are selected from a sample of candidates for production of tt̅ pairs that decay into the lepton+jets channel. The top-quark mass is measured with an unbinned maximum likelihood method where the event probability density functions are calculated using signal and background matrix elements, as well as a set of parametrized jet-to-parton transfer functions. The likelihood function is maximized with respect to the top-quark mass, the signal fraction in the sample, and a correction to the jet energy scale (JES) calibration of the calorimeter jets. The simultaneous measurement of the JES correction (ΔJES) amounts to an additional in situ jet energy calibration based on the known mass of the hadronically decaying W boson. Using the data sample of 578 lepton+jets candidate events, corresponding to 3.2 fb-1 of integrated luminosity, the top-quark mass is measured to be mt=172.4±1.4(stat+ΔJES)±1.3(syst) GeV/c2. |
| first_indexed | 2024-09-23T13:36:33Z |
| format | Article |
| id | mit-1721.1/69069 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:36:33Z |
| publishDate | 2012 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/690692023-02-26T06:01:48Z Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Bauer, Gerry P. Bauer, Gerry P. Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, K. Paus, Christoph M. E. A measurement of the top-quark mass is presented using Tevatron data from proton-antiproton collisions at center-of-mass energy √s=1.96 TeV collected with the CDF II detector. Events are selected from a sample of candidates for production of tt̅ pairs that decay into the lepton+jets channel. The top-quark mass is measured with an unbinned maximum likelihood method where the event probability density functions are calculated using signal and background matrix elements, as well as a set of parametrized jet-to-parton transfer functions. The likelihood function is maximized with respect to the top-quark mass, the signal fraction in the sample, and a correction to the jet energy scale (JES) calibration of the calorimeter jets. The simultaneous measurement of the JES correction (ΔJES) amounts to an additional in situ jet energy calibration based on the known mass of the hadronically decaying W boson. Using the data sample of 578 lepton+jets candidate events, corresponding to 3.2 fb-1 of integrated luminosity, the top-quark mass is measured to be mt=172.4±1.4(stat+ΔJES)±1.3(syst) GeV/c2. National Science Foundation (U.S.) United States. Dept. of Energy Alfred P. Sloan Foundation 2012-02-09T18:49:01Z 2012-02-09T18:49:01Z 2011-10 2011-08 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1089-4918 http://hdl.handle.net/1721.1/69069 Aaltonen, T. et al. “Measurement of the Top-quark Mass in the Lepton+jets Channel Using a Matrix Element Technique with the CDF II Detector.” Physical Review D 84.7 (2011): n. pag. Web. 9 Feb. 2012. © 2011 American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevD.84.071105 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector |
| title | Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector |
| title_full | Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector |
| title_fullStr | Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector |
| title_full_unstemmed | Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector |
| title_short | Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector |
| title_sort | measurement of the top quark mass in the lepton jets channel using a matrix element technique with the cdf ii detector |
| url | http://hdl.handle.net/1721.1/69069 https://orcid.org/0000-0002-6047-4211 |
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