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Determination of electroweak parameters in polarised deep-inelastic scattering at HERA

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cris.lastimport.scopus2024-02-12T20:37:05Z
dc.abstract.enThe parameters of the electroweak theory are determined in a combined electroweak and QCD analysis using all deep-inelastic e(+)p and e(-)p neutral current and charged current scattering cross sections published by the H1 Collaboration, including data with longitudinally polarised lepton beams. Various fits to Standard Model parameters in the on-shell scheme are performed. The mass of the W boson is determined as m(W) = 80.520 +/- 0.115 GeV. The axial-vector and vector couplings of the light quarks to the Z boson are also determined. Both results improve the precision of previous H1 determinations based on HERA-I data by about a factor of two. Possible scale dependence of the weak coupling parameters in both neutral and charged current interactions beyond the Standard Model is also studied. All results are found to be consistent with the Standard Model expectations.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorSopicki, Paweł
dc.date.accessioned2024-01-24T21:38:29Z
dc.date.available2024-01-24T21:38:29Z
dc.date.copyright2018-09-26
dc.date.issued2018
dc.description.accesstimeAT_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number9
dc.description.versionFINAL_PUBLISHED
dc.description.volume78
dc.identifier.doi10.1140/EPJC/S10052-018-6236-8
dc.identifier.issn1434-6044
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/104700
dc.identifier.weblinkhttps://link.springer.com/article/10.1140%2Fepjc%2Fs10052-018-6236-8
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofEuropean Physical Journal C
dc.relation.pages777
dc.rightsCC-BY
dc.sciencecloudnosend
dc.titleDetermination of electroweak parameters in polarised deep-inelastic scattering at HERA
dc.typeJournalArticle
dspace.entity.typePublication