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

The ATLAS collaboration; The ATLAS collaboration; The CMS collaboration; The CMS collaboration; The ATLAS collaboration; The ATLAS collaboration

doi:10.1007/JHEP05(2019)088

Combinations of single-top-quark production cross-section measurements and |f _LV V_tb| determinations at √s = 7 and 8 TeV with the ATLAS and CMS experiments

The ATLAS collaboration
, The ATLAS collaboration
, The CMS collaboration
, The CMS collaboration
, The ATLAS collaboration
, The ATLAS collaboration

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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 V_tb multiplied by a form factor f_LV 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 |V_td|, |V_ts| ≪ |V_tb|. All the |f_LVV_tb|² determinations, extracted from individual ratios at s = 7 and 8 TeV, are combined, resulting in |f_LVV_tb| = 1.02 ± 0.04 (meas.) ± 0.02 (theo.). All combined measurements are consistent with their corresponding Standard Model predictions.[Figure not available: see fulltext.].

Original language	English
Article number	88
Journal	Journal of High Energy Physics
Volume	2019
Issue number	5
DOIs	https://doi.org/10.1007/JHEP05(2019)088
Publication status	Published - 1 May 2019
Externally published	Yes

Keywords

Hadron-Hadron scattering (experiments)

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10.1007/JHEP05(2019)088

Cite this

The ATLAS collaboration, The ATLAS collaboration, The CMS collaboration, The CMS collaboration, The ATLAS collaboration, & The ATLAS collaboration (2019). Combinations of single-top-quark production cross-section measurements and |f _LV V_tb| determinations at √s = 7 and 8 TeV with the ATLAS and CMS experiments. Journal of High Energy Physics, 2019(5), Article 88. https://doi.org/10.1007/JHEP05(2019)088

@article{1671718957994bdda2b74c6689538cb4,

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",

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.].",

keywords = "Hadron-Hadron scattering (experiments)",

author = "\{The ATLAS collaboration\} and \{The ATLAS collaboration\} and \{The CMS collaboration\} and \{The CMS collaboration\} and \{The ATLAS collaboration\} and \{The ATLAS collaboration\} and M. Aaboud and G. Aad and B. Abbott and Abbott, \{D. C.\} and O. Abdinov and \{Abed Abud\}, A. and Abhayasinghe, \{D. K.\} and Abidi, \{S. H.\} and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and S. Adachi and L. Adam and L. Adamczyk and L. Adamek and J. Adelman and M. Adersberger and A. Adiguzel and S. Adorni and T. Adye and Affolder, \{A. A.\} and Y. Afik and C. Agapopoulou and Agaras, \{M. N.\} and A. Aggarwal and C. Agheorghiesei and Aguilar-Saavedra, \{J. A.\} and F. Ahmadov and X. Ai and G. Aielli and S. Akatsuka and {\AA}kesson, \{T. P.A.\} and E. Akilli and Akimov, \{A. V.\} and \{Al Khoury\}, K. and Alberghi, \{G. L.\} and J. Albert and \{Alconada Verzini\}, \{M. J.\} and S. Alderweireldt and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and D. Alexandre and T. Alexopoulos and A. Alfonsi and M. Alhroob and O. Bouhali",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = may,

day = "1",

doi = "10.1007/JHEP05(2019)088",

language = "English",

volume = "2019",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "5",

}

The ATLAS collaboration, The ATLAS collaboration, The CMS collaboration, The CMS collaboration, The ATLAS collaboration & The ATLAS collaboration 2019, 'Combinations of single-top-quark production cross-section measurements and |f _LV V_tb| determinations at √s = 7 and 8 TeV with the ATLAS and CMS experiments', Journal of High Energy Physics, vol. 2019, no. 5, 88. https://doi.org/10.1007/JHEP05(2019)088

Combinations of single-top-quark production cross-section measurements and |f _LV V_tb| determinations at √s = 7 and 8 TeV with the ATLAS and CMS experiments. / The ATLAS collaboration; The ATLAS collaboration; The CMS collaboration et al.
In: Journal of High Energy Physics, Vol. 2019, No. 5, 88, 01.05.2019.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - 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

AU - The ATLAS collaboration

AU - The CMS collaboration

AU - The ATLAS collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abbott, D. C.

AU - Abdinov, O.

AU - Abed Abud, A.

AU - Abhayasinghe, D. K.

AU - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adachi, S.

AU - Adam, L.

AU - Adamczyk, L.

AU - Adamek, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adiguzel, A.

AU - Adorni, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agapopoulou, C.

AU - Agaras, M. N.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahmadov, F.

AU - Ai, X.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Åkesson, T. P.A.

AU - Akilli, E.

AU - Akimov, A. V.

AU - Al Khoury, K.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Alconada Verzini, M. J.

AU - Alderweireldt, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexandre, D.

AU - Alexopoulos, T.

AU - Alfonsi, A.

AU - Alhroob, M.

AU - Bouhali, O.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - 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.].

AB - 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.].

KW - Hadron-Hadron scattering (experiments)

UR - https://www.scopus.com/pages/publications/85066067505

U2 - 10.1007/JHEP05(2019)088

DO - 10.1007/JHEP05(2019)088

M3 - Article

AN - SCOPUS:85066067505

SN - 1029-8479

VL - 2019

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 5

M1 - 88

ER -

The ATLAS collaboration, The ATLAS collaboration, The CMS collaboration, The CMS collaboration, The ATLAS collaboration, The ATLAS collaboration. Combinations of single-top-quark production cross-section measurements and |f _LV V_tb| determinations at √s = 7 and 8 TeV with the ATLAS and CMS experiments. Journal of High Energy Physics. 2019 May 1;2019(5):88. doi: 10.1007/JHEP05(2019)088

Combinations of single-top-quark production cross-section measurements and |f _LV V_tb| determinations at √s = 7 and 8 TeV with the ATLAS and CMS experiments

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Keywords

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