A new measurement of the charged current cross section in e^-p scattering is presented in the range of Q² > 200 GeV², using the 1998 and 1999 data with an integrated luminosity of 16.4 pb^-1. This cross section is compared to the preliminary charged current cross section in e⁺p scattering using the 1999 and 2000 data with an integrated luminosity of 61.0pb^-1, and to predictions of the Standard Model using PDFs extracted from fits to NC data. Finally, the mass of the W boson determined from a fit to d\sigma /dQ² of the e^-p scattering data is presented.

PACS numbers: 13.60.Hb