Measurement of high Q**2 charged current cross-sections in e+ p deep inelastic scattering at HERA
(2003) European Physical Journal C. Particles and Fields — Vol. C32, p. 1-16 (2003)
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- Abstract
- (en) Cross sections for e^+p charged current deep inelastic scattering at a centre-of-mass energy of 318 GeV have been determined with an integrated luminosity of 60.9pb^-1 collected with the ZEUS detector at HERA. The differential cross sections dsigma/dQ^2, dsigma/dx and dsigma/dy for Q^2>200 GeV^2 are presented. In addition, d^2sigma/dxdQ^2 has been measured in the kinematic range 280 GeV^2 < Q^2 < 17000 GeV^2 and 0.008 < x < 0.42. The predictions of the Standard Model agree well with the measured cross sections. The mass of the W boson propagator is determined to be M_W=78.9 +/- 2.0 (stat.) +/- 1.8 (syst.) +2.0 -1.8 (PDF) GeV from a fit to dsigma/dQ^2. The chiral structure of the Standard Model is also investigated in terms of the (1-y)^2 dependence of the the double-differential cross section. The structure-function F_2^CC has been extracted by combining the measurements presented here with previous ZEUS results from e^-p scattering, extending the measurement obtained in a neutrino-nucleus scattering experiment to a significantly higher Q^2 region. Comment: 35 pages, 8 figures (eps), accepted by European Phys. Journal C. Updated with minor changes to the text requested by the journal referee
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Chekanov, S., Piotrzkowski, K., & et al. (2003). Measurement of high Q**2 charged current cross-sections in e+ p deep inelastic scattering at HERA. European Physical Journal C. Particles and Fields, C32, 1-16. https://doi.org/10.1140/epjc/s2003-01363-5 (Original work published 2003)