arXiv subjects

Dieter Zeppenfeld

Publications and source records attributed to Dieter Zeppenfeld.

58 records · Page 4Linked to original sources

arXiv1996

QCD Corrections to Jet Cross Sections in DIS

Next-to-leading order corrections to jet cross sections in deep inelastic scattering at HERA are studied. The predicted jet rates allow for a precise determination of $α_s(μ_R)$ at HERA over a wide range of $μ_R$. We argue, that the ``natural'' renormalization and factorization scale is set by the average $k_T^B$ of the jets in the Breit frame and suggest to divide the data in corresponding $ $ intervals. Some implications for the determination of the gluon density and the associated forward jet production in the low $x$ regime at HERA are briefly discussed.

hep-ph↗

arXiv1996

Jet Production in Deep Inelastic Scattering at HERA

Two-jet cross sections in deep inelastic scattering at HERA are calculated in next-to-leading order. The importance of higher order corrections and recombination scheme dependencies is studied for various jetalgorithms. Some implications for the determination of $α_s(μ_R^2)$, the determination of the gluon density and the associated forward jet production in the low $x$ regime at HERA are briefly discussed.

hep-ph↗

arXiv1995

Minijet activity in high E_T jet events at the Tevatron

Gluon bremsstrahlung in scattering events with high transverse momentum jets is expected to increase markedly with the hardness (sum E_T) of the primary event. Within perturbative QCD we estimate a probability of order unity to see additional minijets with E_T >~ 15 GeV in ``dijet'' events with sum E_T > 400 GeV. The veto of such minijets is a promising background rejection tool for the Higgs search at the LHC.

hep-ph↗

arXiv1995

GLUON RADIATION PATTERNS IN HARD SCATTERING EVENTS

The radiation pattern of relatively soft gluons in hard scattering events is sensitive to the underlying color structure. As an example I consider heavy Higgs production via weak boson fusion at the LHC. A minijet veto, which makes use of the different patterns for signal and backgrounds, provides an effective Higgs search tool. Talk presented at the Conference on Physics {\it Beyond the Standard Model IV}, Lake Tahoe, California, December 14--18, 1994.

hep-ph↗