Measurement of the Differential Cross Section dσ/d(cosθ[subscript t]) for Top-Quark Pair Production in p[bar over p] Collisions at √s = 1.96 TeV
We report a measurement of the differential cross section dσ/d(cosθ[subscript t]) for top-quark pair production as a function of the top-quark production angle in proton-antiproton collisions at s√ = 1.96 TeV. This measurement is performed using data collected with the CDF II detector at the Tevatr...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/84932 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1826206254206287872 |
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| author | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. |
| 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. |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | We report a measurement of the differential cross section dσ/d(cosθ[subscript t]) for top-quark pair production as a function of the top-quark production angle in proton-antiproton collisions at s√ = 1.96 TeV. This measurement is performed using data collected with the CDF II detector at the Tevatron, corresponding to an integrated luminosity of 9.4 fb[superscript −1]. We employ the Legendre polynomials to characterize the shape of the differential cross section at the parton level. The observed Legendre coefficients are in good agreement with the prediction of the next-to-leading-order standard-model calculation, with the exception of an excess linear-term coefficient a[subscript 1] = 0.40 ± 0.12, compared to the standard-model prediction of a[subscript 1] = 0.15[+0.07 over −0.03]. |
| first_indexed | 2024-09-23T13:26:32Z |
| format | Article |
| id | mit-1721.1/84932 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:26:32Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/849322022-10-01T15:18:20Z Measurement of the Differential Cross Section dσ/d(cosθ[subscript t]) for Top-Quark Pair Production in p[bar over p] Collisions at √s = 1.96 TeV Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. We report a measurement of the differential cross section dσ/d(cosθ[subscript t]) for top-quark pair production as a function of the top-quark production angle in proton-antiproton collisions at s√ = 1.96 TeV. This measurement is performed using data collected with the CDF II detector at the Tevatron, corresponding to an integrated luminosity of 9.4 fb[superscript −1]. We employ the Legendre polynomials to characterize the shape of the differential cross section at the parton level. The observed Legendre coefficients are in good agreement with the prediction of the next-to-leading-order standard-model calculation, with the exception of an excess linear-term coefficient a[subscript 1] = 0.40 ± 0.12, compared to the standard-model prediction of a[subscript 1] = 0.15[+0.07 over −0.03]. United States. Dept. of Energy National Science Foundation (U.S.) 2014-02-10T20:19:34Z 2014-02-10T20:19:34Z 2013-10 2013-06 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/84932 Aaltonen, T., S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, et al. “Measurement of the Differential Cross Section dσ/d(cosθ[subscript t]) for Top-Quark Pair Production in p[bar over p] Collisions at √s = 1.96 TeV.” Physical Review Letters 111, no. 18 (October 2013). © 2013 American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevLett.111.182002 Physical Review Letters 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 American Physical Society |
| spellingShingle | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Measurement of the Differential Cross Section dσ/d(cosθ[subscript t]) for Top-Quark Pair Production in p[bar over p] Collisions at √s = 1.96 TeV |
| title | Measurement of the Differential Cross Section dσ/d(cosθ[subscript t]) for Top-Quark Pair Production in p[bar over p] Collisions at √s = 1.96 TeV |
| title_full | Measurement of the Differential Cross Section dσ/d(cosθ[subscript t]) for Top-Quark Pair Production in p[bar over p] Collisions at √s = 1.96 TeV |
| title_fullStr | Measurement of the Differential Cross Section dσ/d(cosθ[subscript t]) for Top-Quark Pair Production in p[bar over p] Collisions at √s = 1.96 TeV |
| title_full_unstemmed | Measurement of the Differential Cross Section dσ/d(cosθ[subscript t]) for Top-Quark Pair Production in p[bar over p] Collisions at √s = 1.96 TeV |
| title_short | Measurement of the Differential Cross Section dσ/d(cosθ[subscript t]) for Top-Quark Pair Production in p[bar over p] Collisions at √s = 1.96 TeV |
| title_sort | measurement of the differential cross section dσ d cosθ subscript t for top quark pair production in p bar over p collisions at √s 1 96 tev |
| url | http://hdl.handle.net/1721.1/84932 https://orcid.org/0000-0002-6047-4211 |
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