Extracting sigma_effective from the LHCb double-charm measurement

3 Dec 2013, 12:15
25m
Talk MPI & Double Parton Scattering MPI & Double Parton Scattering

Speaker

Andrzej Konrad Siodmok (University of Manchester (GB))

Description

We discuss various issues related to the definition of single and double open charm cross sections. We conclude that LHCb's extraction of sigma_effective, the effective cross section for double-parton scattering, is too large by a factor of two. This correction brings the data from open-charm pairs closer to that from J/psi plus open charm and jet production.

Primary author

Andrzej Konrad Siodmok (University of Manchester (GB))

Co-author

Mike Seymour (University of Manchester (GB))

Presentation materials