Daniel Craik, MIT

The charm of the proton: using forward Z+c production to study intrinsic charm at LHCb

Abstract:
While the proton is typically considered to be composed of three quarks (u u d) at the valance level, current experimental limits also allow for a percent-level contribution from valance-like charm quarks. The production of Z bosons in association with charm jets in the forward region provides a direct probe of the charm content of the proton. I will present results from a recent analysis of forward Z+c production at LHCb as well as an overview of charm-jet tagging at LHCb.