Fit of electroweak parameters in polarized deep-inelastic scattering using data from the H1 experiment

Autor: Hubert Spiesberger, Daniel Andreas Britzger
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Computer science
standard model
parton: distribution function
Parton
02 engineering and technology
Z0: mass
computer.software_genre
charged current
axial-vector [coupling]
0202 electrical engineering
electronic engineering
information engineering
050107 human factors
Charged current
Physics
high [momentum transfer]
05 social sciences
Electroweak interaction
Momentum transfer
Weinberg angle
HERA
mass [W]
beam [positron]
W: mass
H1
Data mining
distribution function [parton]
Particle physics
neutral current
lepton: polarized beam
vector [coupling]
Standard Model
mass [Z0]
coupling constant [quark]
deep inelastic scattering [lepton p]
quark: coupling constant
0501 psychology and cognitive sciences
ddc:530
lepton p: deep inelastic scattering
coupling: vector
electroweak interaction
High Energy Physics::Phenomenology
020207 software engineering
Deep inelastic scattering
polarized beam [lepton]
coupling: axial-vector
positron: beam
Distribution function
High Energy Physics::Experiment
computer
momentum transfer: high
Zdroj: Proceedings of Science (ICHEP2016), 676 (2017). doi:10.22323/1.282.0676
38th International Conference on High Energy Physics, ICHEP2016, Chicago, USA, 2016-08-03-2016-08-10
XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS16, Hamburg, Germany, 2016-04-11-2016-04-15
Proceedings of Science (DIS2016), 048 (2016). doi:10.22323/1.265.0048
Proceedings of XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2016)-Sissa Medialab Trieste, Italy, 2016.-ISBN-doi:10.22323/1.265.0048
Proceedings of XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2016)-Sissa Medialab Trieste, Italy, 2016.-ISBN-doi:10.22323/1.265.004824th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS2016, Hamburg, Germany, 2016-04-11-2016-04-15
DOI: 10.22323/1.282.0676
Popis: 38th International Conference on High Energy Physics, ICHEP2016, Chicago, USA, 3 Aug 2016 - 10 Aug 2016; Proceedings of Science (ICHEP2016), 676 (2017). doi:10.22323/1.282.0676
The vector and axial-vector couplings of light quarks to the Z0-boson are determined using the final deep-inelastic $\it e^{+}p$ and $\it e^{-}p$ neutral and charged current scattering cross sections from the H1 experiment at the HERA collider. The fit determines the electroweak parameters together with the parameters of parton distribution functions (PDFs) in order to account for the PDF uncertainties. Compared to an earlier analysis, the precision of the electroweak parameters is improved since the extraction benefits from the data taken with longitudinally polarized electron and positron beams. The work is further extended towards a consistency study of the Standard Model of Particle Physics in the domain of space-like momentum transfer by determining also the masses of the $Z^{0}$ and W-bosons, or by determining the Fermi coupling constant $\it G_{F}$ or the weak mixing angle $sin^{2}\theta_{W}$ together with the $\it W$-boson mass. The large kinematic reach of the data is exploited and the weak mixing angle,defined in the on-shell scheme,is determined at various scales in the range of the data of 12 < $Q^{2}
Published by SISSA, Trieste
Databáze: OpenAIRE
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