Associated production of W or Z with a charm at high-energy pp or p p ̄ colliders is investigated, including complete QCD corrections up to order ααs2. We can probe gluon, and charm (and bottom) densities inside nucleons using prompt W and Z productions without the theoretical and experimental uncertainties, which are closely related to the direct photon production experiments at high-energy hadron colliders. Also we derive a unique method to extract the ratio of the valence quark densities using the experimental measurement of asymmetry in W rapidity distribution.
Bibliographical noteFunding Information:
I would like to thank rtin and WJ Stirling for the recent collaboration , and F . Halien [151 and agiwara [131 for the previous collaborations that lead to this investigation and J . Collins, R .J .N . Phillips and K. Tesirna for helpful discussions . The work was supported by the UK Science and Engineering Research Council .
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics