Measurement of the tt̅ [f f overscore] production cross section with an in situ calibration of b-jet identification efficiency
A measurement of the top-quark pair-production cross section in pp̅ [p p overscore] collisions at √s=1.96 [square root of 1.96] TeV using data corresponding to an integrated luminosity of 1.12 fb-1 [fb superscript -1] collected with the Collider Detector at Fermilab is presented. Decays of top-qua...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/65331 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1811095655637057536 |
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| author | Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Bauer, Gerry P |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Bauer, Gerry P |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | A measurement of the top-quark pair-production cross section in pp̅ [p p overscore] collisions at √s=1.96 [square root of 1.96] TeV using data corresponding to an integrated luminosity of 1.12 fb-1 [fb superscript -1] collected with the Collider Detector at Fermilab is presented. Decays of top-quark pairs into the final states eν+ jets and μν+ [mu v+] jets are selected, and the cross section and the b-jet identification efficiency are determined using a new measurement technique which requires agreement between the measured cross sections with exactly one and with multiple identified b quarks from the top-quark decays. Assuming a top-quark mass of 175 GeV/c2 [GeV / c superscript 2], a cross section of 8.5±0.6(stat)±0.7(syst)pb is measured. |
| first_indexed | 2024-09-23T16:22:07Z |
| format | Article |
| id | mit-1721.1/65331 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:22:07Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/653312023-02-26T04:19:36Z Measurement of the tt̅ [f f overscore] production cross section with an in situ calibration of b-jet identification efficiency Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Bauer, Gerry P Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Paus, Christoph M E Bauer, Gerry P. Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. A measurement of the top-quark pair-production cross section in pp̅ [p p overscore] collisions at √s=1.96 [square root of 1.96] TeV using data corresponding to an integrated luminosity of 1.12 fb-1 [fb superscript -1] collected with the Collider Detector at Fermilab is presented. Decays of top-quark pairs into the final states eν+ jets and μν+ [mu v+] jets are selected, and the cross section and the b-jet identification efficiency are determined using a new measurement technique which requires agreement between the measured cross sections with exactly one and with multiple identified b quarks from the top-quark decays. Assuming a top-quark mass of 175 GeV/c2 [GeV / c superscript 2], a cross section of 8.5±0.6(stat)±0.7(syst)pb is measured. United States. Dept. of Energy Alfred P. Sloan Foundation National Science Foundation (U.S.) 2011-08-18T19:30:58Z 2011-08-18T19:30:58Z 2011-04 2010-10 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/65331 Aaltonen, T. "Measurement of the tt̅ production cross section with an in situ calibration of b-jet identification efficiency" Phys. Rev. D, v. 83, 071102(R) (2011) © 2011 American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevD.83.071102 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 |
| spellingShingle | Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Bauer, Gerry P Measurement of the tt̅ [f f overscore] production cross section with an in situ calibration of b-jet identification efficiency |
| title | Measurement of the tt̅ [f f overscore] production cross section with an in situ calibration of b-jet identification efficiency |
| title_full | Measurement of the tt̅ [f f overscore] production cross section with an in situ calibration of b-jet identification efficiency |
| title_fullStr | Measurement of the tt̅ [f f overscore] production cross section with an in situ calibration of b-jet identification efficiency |
| title_full_unstemmed | Measurement of the tt̅ [f f overscore] production cross section with an in situ calibration of b-jet identification efficiency |
| title_short | Measurement of the tt̅ [f f overscore] production cross section with an in situ calibration of b-jet identification efficiency |
| title_sort | measurement of the tt f f overscore production cross section with an in situ calibration of b jet identification efficiency |
| url | http://hdl.handle.net/1721.1/65331 https://orcid.org/0000-0002-6047-4211 |
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