General mass scheme for jet production in DIS

Diffractive Jet Production in Dis

Forward-jet production in DIS

In this talk I report on some work done in collaboration with Jochen Bartels and Mark Wüsthoff on forward-jet inclusive production in DIS in the small-xbj limit. We work in the HERA lab frame and examine the jet production rate and the lepton-jet azimuthal-angle correlation at small values of xbj .

Diffractive Jet Production in Dis – Testing Qcd Factorisation

A measurement 1,2 is presented of diffractive dijet production in deep-inelastic scattering (DIS) interactions at HERA of the type ep→ eXY , where the X system is separated by a large rapidity gap from a low-mass leading baryonic system Y . The data are consistent with QCD factorisation in diffractive DIS and yield tight constraints on both shape and normalisation of the diffractive gluon distr...

Author's Personal Copy Dis Heavy-flavor Contributions at Two Loops in a General Mass Scheme

We discuss an NNLO realization of the general mass scheme S-ACOT-χ for treatment of heavy-flavor production in neutral current deep-inelastic scattering. The connection of this scheme to the QCD factorization theorem with massive quarks is elucidated. As a new feature, kinematical constraints on collinear production of heavy quarks that are crucial near the heavy-quark threshold are included in...

Resummation of the jet broadening in DIS

We calculate the leading and next-to-leading logarithmic resummed distribution for the jet broadening in deep inelastic scattering, as well as the power correction for both the distribution and mean value. A truncation of the answer at NLL accuracy, as is standard, leads to unphysical divergences. We discuss their origin and show how the problem can be resolved. We then examine DIS-specific pro...