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

, H1 Collaboration (2018) Determination of electroweak parameters in polarised deep-inelastic scattering at HERA. European Physical Journal D, 78 (9). ISSN 1434-6079

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Abstract

The 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 mW=80.520±0.115GeV. 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. © 2018, The Author(s).

Item Type:
Journal Article
Journal or Publication Title:
European Physical Journal D
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3107
Subjects:
ID Code:
129483
Deposited By:
Deposited On:
09 Jan 2019 14:30
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Oct 2020 06:47