8 papers
The CEDAR Project
J. M. Butterworth, S. Butterworth, B. M. Waugh +2
We describe the plans and objectives of the CEDAR project (Combined e-Science Data Analysis Resource for High Energy Physics) newly funded by the PPARC e-Science programme in the U…
Studying QCD in the Final State of High Energy Collisions
J. M. Butterworth
I give an outline and some discussion of the results presented during the hadronic final states parallel sessions of the meeting, and some opinions about the current state of play…
Charm `in' the Photon
J. M. Butterworth, ZEUS Collaboration
Some recent ZEUS results on the photoproduction of open charm and possible implications for photon structure are discussed.
Photoproduction Processes in Polarized ep - Collisions at HERA
J. M. Butterworth, N. Goodman, M. Stratmann +1
We study various conceivable photoproduction reactions in a polarized ep collider mode of HERA with respect to their sensitivity to the proton's polarized gluon distribution. A spe…
High p_T Charm Photoproduction
G. Abbiendi, J. M. Butterworth, R. Graciani
The expected rates for charm-tagged jet photoproduction are evaluated for a number of tagging procedures, and some of the physics potential is discussed. Charm in jets is tagged us…
Rapidity Gaps Between Jets
J. M. Butterworth, M. E. Hayes, M. H. Seymour +1
An excess of events with a rapidity gap between jets, over what would be expected from non-diffractive processes, has been observed at HERA. A process based on a perturbative QCD c…