Three jet cross sections in photoproduction at HERA

Details Three jet cross sections in photoproduction at HERA Three jet cross sections in photoproduction at HERA

1998-08-04

arxiv.org/abs/hep-ph/9808223v1

Eur.Phys.J. C7 (1999) 225-232

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 8 figures

Scientific paper

We calculate three jet cross sections in photoproduction using exact matrix elements for the direct and resolved contributions. Numerical distributions are presented in a generic, irreducible set of variables that allows to disentangle the dynamics of partonic QCD subprocesses from each other and from pure phase space distributions. The results are compared to preliminary data from the ZEUS collaboration at HERA. It is found that the largest contribution comes from photon-gluon fusion in the mass range 36 GeV $< M_{\rm 3-jet} <$ 80 GeV. The measured leading jet scattering angle distribution is consistent with the $t$-channel exchange of a massless fermion in $2\to 2$ scattering, where the third parton is assumed to arise from soft bremsstrahlung. The data are inconsistent with pure phase space and Rutherford scattering distributions.

Affiliated with

Also associated with

No associations

Rating

Three jet cross sections in photoproduction at HERA does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Three jet cross sections in photoproduction at HERA, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three jet cross sections in photoproduction at HERA will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-347718