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William B. Kilgore

Publications and source records attributed to William B. Kilgore.

26 records · Page 2Linked to original sources
arXiv1999

The Infrared Behavior of QCD Cross Sections at Next-to-Next-to-Leading Order

In this talk we examine how one-loop soft and collinear splitting functions occur in the calculation of next-to-next-to-leading order (NNLO) corrections to production rates, and we present the one-loop gluon soft and splitting functions, computed to all orders in the dimensional regularization parameter $ε$. We apply the one-loop gluon soft function to the calculation of the next-to-leading logarithmic corrections to the Lipatov vertex to all orders in $ε$.

hep-ph↗
arXiv1999

Hadronic Three Jet Production at Next-to-Leading Order

We report preliminary results for a next-to-leading order event generator for hadronic three jet production. We demonstrate the stability of the calculation and present preliminary results for the jet transverse energy spectra. This is the first calculation of three jet production at this order to include all parton sub-processes.

hep-ph↗
arXiv1997

Next to Leading Order Three Jet Production at Hadron Colliders

I present results from a next-to-leading order event generator of purely gluonic jet production. This calculation is the first step in the construction of a full next-to-leading order calculation of three jet production at hadron colliders. Several jet algorithms commonly used in experiments are implemented and their numerical stability is investigated. A numerical instability is found in the iterative cone algorithm which makes it inappropriate for use in fixed order calculations beyond leading order.

hep-ph↗
arXiv1996

Next-to-Leading Order Gluonic Three Jet Production at Hadron Colliders

We report the results of a next-to-leading order event generator of purely gluonic jet production. This calculation is the first step in the construction of a full next-to-leading order calculation of three jet production at hadron colliders. Several jet-algorithms commonly used in experiments are implemented and their numerical stability is investigated.

hep-ph↗
arXiv1996

Gluonic Three Jet Production at Next to Leading Order

I report results from a next-to-leading order event generator of purely gluonic jet production. This calculation, is the first step in the construction of a full next-to-leading order calculation of three jet production at hadron colliders.

hep-ph↗
arXiv1994

$W^+Z$ and $W^+γ^*$ Backgrounds to Strong $W^+W^+$ Scattering at the LHC

Because of inevitable blind spots at high rapidity and low transverse momentum, the process $\overline qq \rightarrow l^+ l^- \ l^{+} ν$ provides a surprisingly large background to the $W^+W^+ \rightarrow l^+ ν\ l^+ ν$ signal associated with strong $WW$ scattering. Previous calculations of the total background are approximately doubled, and the estimate of the ``no-lose'' luminosity at the LHC to observe manifestations of the electroweak symmetry breaking mechanism is increased to between $\sim 100$ and $\sim 140$ fb$^{-1}$.

hep-ph↗
arXiv1993

Anomalous Condensates and the Equivalence Theorem

A recently published report has called into question the validity of the equivalence theorem in dynamically broken gauge theories in which the fermions making up the symmetry breaking condensate lie in an anomalous representation of the broken gauge group. Such a situation can occur if the gauge anomaly is cancelled by another sector of the theory. Using the example of the one family Standard Model without scalar Higgs structure, we analyze a low energy effective theory which preserves the symmetries of the fundamental theory and demonstrate the validity of the equivalence theorem in this class of models.

hep-ph↗