Charm Production in Charged Current Deep Inelastic Scattering at HERA

Charm production in charged current deep inelastic scattering has been measured for the first time in $e^{\pm}p$ collisions, using data collected with the ZEUS detector at HERA, corresponding to an integrated luminosity of $358 \textrm{ pb}^{-1}$. Results are presented separately for $e^+p$ and $e^-p$ scattering at a center-of-mass energy of $\sqrt{s} = 318 \textrm{ GeV}$ within a kinematic phase-space region of $200 \textrm{ GeV}^2 < Q^2 < 60000 \textrm{ GeV}^2$ and $y < 0.9$, where $Q^2$ is the squared four-momentum transfer and $y$ is the inelasticity of deep inelastic scattering. The measured cross sections of electroweak charm production, although not statistically significant, are consistent with expectations.