Determination of the strong coupling constant alpha(S)(m(Z)) from measurements of inclusive W-+/- and Z boson production cross sections in proton-proton collisions at root s=7 and 8 TeV
Twelve measurements of inclusive cross sections of W± and Z boson production, performed in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, are compared with perturbative quantum chromodynamics calculations at next-to-nextto-leading order (NNLO) accuracy obtained with the CT14,...
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my.iium.irep.879922021-01-21T13:15:07Z http://irep.iium.edu.my/87992/ Determination of the strong coupling constant alpha(S)(m(Z)) from measurements of inclusive W-+/- and Z boson production cross sections in proton-proton collisions at root s=7 and 8 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Bergauer, Thomas Md. Ali, Mohd. Adli Q Science (General) QC Physics Twelve measurements of inclusive cross sections of W± and Z boson production, performed in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, are compared with perturbative quantum chromodynamics calculations at next-to-nextto-leading order (NNLO) accuracy obtained with the CT14, HERAPDF2.0, MMHT14, and NNPDF3.0 parton distribution functions (PDFs). Data and theory agree well for all PDF sets, taking into account the experimental and theoretical uncertainties. A novel procedure is employed to extract the strong coupling constant at the Z pole mass from a detailed comparison of all the experimental fiducial cross sections to the corresponding NNLO theoretical predictions, yielding αS (mZ) = 0.1163+0.0024 −0.0031 (CT14), 0.1072+0.0043 −0.0040 (HERAPDF2.0), 0.1186 ± 0.0025 (MMHT14), and 0.1147 ± 0.0023 (NNPDF3.0). Using the results obtained with the CT14 and MMHT14 PDFs, which yield the most robust and stable αS (mZ) extractions, a value αS (mZ) = 0.1175+0.0025 −0.0028 is determined. Springer 2020-06-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/87992/1/87992_Determination%20of%20the%20strong%20coupling%20constant_article.pdf application/pdf en http://irep.iium.edu.my/87992/2/87992_Determination%20of%20the%20strong%20coupling%20constant_scopus.pdf application/pdf en http://irep.iium.edu.my/87992/3/87992_Determination%20of%20the%20strong%20coupling%20constant_wos.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Bergauer, Thomas and Md. Ali, Mohd. Adli (2020) Determination of the strong coupling constant alpha(S)(m(Z)) from measurements of inclusive W-+/- and Z boson production cross sections in proton-proton collisions at root s=7 and 8 TeV. Journal of High Energy Physics, 2020 (6). pp. 1-49. ISSN 1126-6708 E-ISSN 1029-8479 https://link-springer-com.ezlib.iium.edu.my/article/10.1007/JHEP06(2020)018 10.1007/JHEP06(2020)018 |
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Q Science (General) QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Bergauer, Thomas Md. Ali, Mohd. Adli Determination of the strong coupling constant alpha(S)(m(Z)) from measurements of inclusive W-+/- and Z boson production cross sections in proton-proton collisions at root s=7 and 8 TeV |
description |
Twelve measurements of inclusive cross sections of W±
and Z boson production, performed in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV,
are compared with perturbative quantum chromodynamics calculations at next-to-nextto-leading order (NNLO) accuracy obtained with the CT14, HERAPDF2.0, MMHT14,
and NNPDF3.0 parton distribution functions (PDFs). Data and theory agree well for all
PDF sets, taking into account the experimental and theoretical uncertainties. A novel
procedure is employed to extract the strong coupling constant at the Z pole mass from
a detailed comparison of all the experimental fiducial cross sections to the corresponding NNLO theoretical predictions, yielding αS
(mZ) = 0.1163+0.0024
−0.0031 (CT14), 0.1072+0.0043
−0.0040
(HERAPDF2.0), 0.1186 ± 0.0025 (MMHT14), and 0.1147 ± 0.0023 (NNPDF3.0). Using
the results obtained with the CT14 and MMHT14 PDFs, which yield the most robust and
stable αS
(mZ) extractions, a value αS
(mZ) = 0.1175+0.0025
−0.0028 is determined. |
format |
Article |
author |
Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Bergauer, Thomas Md. Ali, Mohd. Adli |
author_facet |
Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Bergauer, Thomas Md. Ali, Mohd. Adli |
author_sort |
Sirunyan, A. M. |
title |
Determination of the strong coupling constant alpha(S)(m(Z)) from measurements of inclusive W-+/- and Z boson production cross sections in proton-proton collisions at root s=7 and 8 TeV |
title_short |
Determination of the strong coupling constant alpha(S)(m(Z)) from measurements of inclusive W-+/- and Z boson production cross sections in proton-proton collisions at root s=7 and 8 TeV |
title_full |
Determination of the strong coupling constant alpha(S)(m(Z)) from measurements of inclusive W-+/- and Z boson production cross sections in proton-proton collisions at root s=7 and 8 TeV |
title_fullStr |
Determination of the strong coupling constant alpha(S)(m(Z)) from measurements of inclusive W-+/- and Z boson production cross sections in proton-proton collisions at root s=7 and 8 TeV |
title_full_unstemmed |
Determination of the strong coupling constant alpha(S)(m(Z)) from measurements of inclusive W-+/- and Z boson production cross sections in proton-proton collisions at root s=7 and 8 TeV |
title_sort |
determination of the strong coupling constant alpha(s)(m(z)) from measurements of inclusive w-+/- and z boson production cross sections in proton-proton collisions at root s=7 and 8 tev |
publisher |
Springer |
publishDate |
2020 |
url |
http://irep.iium.edu.my/87992/1/87992_Determination%20of%20the%20strong%20coupling%20constant_article.pdf http://irep.iium.edu.my/87992/2/87992_Determination%20of%20the%20strong%20coupling%20constant_scopus.pdf http://irep.iium.edu.my/87992/3/87992_Determination%20of%20the%20strong%20coupling%20constant_wos.pdf http://irep.iium.edu.my/87992/ https://link-springer-com.ezlib.iium.edu.my/article/10.1007/JHEP06(2020)018 |
_version_ |
1690370789320163328 |
score |
13.18916 |