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Combinations of single-top-quark production cross-section measurements and |f LV Vtb| determinations at √s = 7 and 8 TeV with the ATLAS and CMS experiments
dc.contributor | ATLAS Collaboration | |
dc.contributor | CMS Collaboration | |
dc.creator | Aaboud, M. | |
dc.creator | Aad, G. | |
dc.creator | Abbott, B | |
dc.creator | Abbott, D C | |
dc.creator | Adžić, Petar | |
dc.creator | Ćirković, Predrag | |
dc.creator | Devetak, Damir | |
dc.creator | Đorđević, Miloš | |
dc.creator | Milenović, Predrag | |
dc.creator | Milošević, Jovan | |
dc.date.accessioned | 2019-08-26T08:35:21Z | |
dc.date.available | 2019-08-26T08:35:21Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 1126-6708 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/8210 | |
dc.description.abstract | This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at s = 7 and 8 TeV corresponding to integrated luminosities of 1.17 to 5.1 fb−1 at s = 7 TeV and 12.2 to 20.3 fb−1 at s = 8 TeV. These combinations are performed per centre-of-mass energy and for each production mode: t-channel, tW, and s-channel. The combined t-channel cross-sections are 67.5 ± 5.7 pb and 87.7 ± 5.8 pb at s = 7 and 8 TeV respectively. The combined tW cross-sections are 16.3 ± 4.1 pb and 23.1 ± 3.6 pb at s = 7 and 8 TeV respectively. For the s-channel cross-section, the combination yields 4.9 ± 1.4 pb at s = 8 TeV. The square of the magnitude of the CKM matrix element Vtb multiplied by a form factor fLV is determined for each production mode and centre-of-mass energy, using the ratio of the measured cross-section to its theoretical prediction. It is assumed that the top-quark-related CKM matrix elements obey the relation |Vtd|, |Vts| ≪ |Vtb|. All the |fLVVtb|2 determinations, extracted from individual ratios at s = 7 and 8 TeV, are combined, resulting in |fLVVtb| = 1.02 ± 0.04 (meas.) ± 0.02 (theo.). All combined measurements are consistent with their corresponding Standard Model predictions.[Figure not available: see fulltext.]. © 2019, The Author(s). | en |
dc.language.iso | en | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Journal of High Energy Physics | |
dc.title | Combinations of single-top-quark production cross-section measurements and |f LV Vtb| determinations at √s = 7 and 8 TeV with the ATLAS and CMS experiments | en |
dc.type | article | en |
dc.rights.license | BY | |
dcterms.abstract | Миленовић, Предраг; Aджић, Петар; Ћирковић, Предраг; Милошевић, Јован; Деветак, Дамир; Ђорђевић, Милош; Aбботт, Д Ц; Aбботт, Б; Aад, Г; Aабоуд, М; | |
dc.rights.holder | © 2019, The Author(s) | |
dc.citation.volume | 2019 | |
dc.citation.issue | 5 | |
dc.identifier.wos | 000468428300001 | |
dc.identifier.doi | 10.1007/JHEP05(2019)088 | |
dc.contributor.count | ATLAS and CMS Collaboration (ukupan broj autora: 5309) | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85066067505 | |
dc.identifier.fulltext | https://vinar.vin.bg.ac.rs//bitstream/id/20369/Aaboud2019_Article_CombinationsOFSingle-top-quark.pdf |
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