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
This paper presents the combinations of single-top-quark production crosssection 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 a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
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Springer Nature
2019
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| Online Access: | http://irep.iium.edu.my/79576/ http://irep.iium.edu.my/79576/1/79576_Combinations%20of%20single-top-quark%20production_article.pdf http://irep.iium.edu.my/79576/2/79576_Combinations%20of%20single-top-quark%20production_scopus.pdf http://irep.iium.edu.my/79576/3/79576_Combinations%20of%20single-top-quark%20production_wos.pdf |
| _version_ | 1848788793780338688 |
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| author | Aaboud, M. Aad, Georges Abbott, Brad K. Abbott, D. C. Abdinov, O. B. Md. Ali, Mohd. Adli |
| author_facet | Aaboud, M. Aad, Georges Abbott, Brad K. Abbott, D. C. Abdinov, O. B. Md. Ali, Mohd. Adli |
| author_sort | Aaboud, M. |
| building | IIUM Repository |
| collection | Online Access |
| description | This paper presents the combinations of single-top-quark production crosssection 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: tchannel, 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 schannel 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. |
| first_indexed | 2025-11-14T17:46:29Z |
| format | Article |
| id | iium-79576 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T17:46:29Z |
| publishDate | 2019 |
| publisher | Springer Nature |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-795762020-03-16T07:53:05Z http://irep.iium.edu.my/79576/ 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 Aaboud, M. Aad, Georges Abbott, Brad K. Abbott, D. C. Abdinov, O. B. Md. Ali, Mohd. Adli Q Science (General) QC Physics This paper presents the combinations of single-top-quark production crosssection 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: tchannel, 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 schannel 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. Springer Nature 2019-05-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/79576/1/79576_Combinations%20of%20single-top-quark%20production_article.pdf application/pdf en http://irep.iium.edu.my/79576/2/79576_Combinations%20of%20single-top-quark%20production_scopus.pdf application/pdf en http://irep.iium.edu.my/79576/3/79576_Combinations%20of%20single-top-quark%20production_wos.pdf Aaboud, M. and Aad, Georges and Abbott, Brad K. and Abbott, D. C. and Abdinov, O. B. and Md. Ali, Mohd. Adli (2019) 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. Journal of High Energy Physics, 2019 (5). pp. 1-80. ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007/JHEP05(2019)088.pdf 10.1007/JHEP05(2019)088 |
| spellingShingle | Q Science (General) QC Physics Aaboud, M. Aad, Georges Abbott, Brad K. Abbott, D. C. Abdinov, O. B. Md. Ali, Mohd. Adli 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 |
| 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 |
| title_full | 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 |
| title_fullStr | 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 |
| title_full_unstemmed | 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 |
| title_short | 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 |
| title_sort | 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 |
| topic | Q Science (General) QC Physics |
| url | http://irep.iium.edu.my/79576/ http://irep.iium.edu.my/79576/ http://irep.iium.edu.my/79576/ http://irep.iium.edu.my/79576/1/79576_Combinations%20of%20single-top-quark%20production_article.pdf http://irep.iium.edu.my/79576/2/79576_Combinations%20of%20single-top-quark%20production_scopus.pdf http://irep.iium.edu.my/79576/3/79576_Combinations%20of%20single-top-quark%20production_wos.pdf |