Measurement of high- Q 2 charged current cross sections in e − p deep inelastic scattering at HERA

Abstract Cross sections for e − p charged current deep inelastic scattering have been measured at a centre-of-mass energy of 318 GeV with an integrated luminosity of 16.4 pb −1 using the ZEUS detector at HERA. Differential cross sections dσ / dQ 2 , dσ / dx and dσ / dy are presented for Q 2 >200 GeV 2 . In addition, d 2 σ/(dx dQ 2 ) was measured in the kinematic range 280  GeV 2 2 000  GeV 2 and 0.015 x W boson, determined from a fit to dσ / dQ 2 , is M W =80.3±2.1(stat.)±1.2(syst.)±1.0(PDF) GeV.