Measurement of high-Q 2 charged current cross sections in e + p deep inelastic scattering at HERA
Cross sections for e + p charged current deep inelastic scattering at a centre-of-mass energy of have been determined with an integrated luminosity of collected with the ZEUS detector at HERA. The differential cross sections , and for are presented. In addition, has been measured in the kinematic range and . The predictions of the Standard Model agree well with the measured cross sections. The mass of the W boson propagator is determined to be from a fit to . The chiral structure of the Standard Model is also investigated in terms of the (1-y)2 dependence of the double-differential cross section. The structure-function 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.
© Springer-Verlag, 2003