666 research outputs found
QCD
In these lecture notes I describe the theory of QCD and its application,
through perturbation theory, at particle colliders.Comment: 58 pages, contribution to the Proceedings of the 2014 European School
of High-Energy Physics. Garderen, the Netherlands, 18 June - 1 July 201
Radiative corrections to scattering
We investigate the effects of photon radiation on deep-inelastic \re\gamma
scattering. Depending on the set of variables chosen, we find appreciable
effects in the kinematic region accessible at LEP2. Convenient analytic results
for corrected differential cross sections are presented.Comment: 9 pages, latex + 1 postscript figure, all uuencode
Charm Production in Deep-Inelastic Scattering To Next-To-Leading Order in QCD
We discuss the calculation of to next-to-leading
order (NLO) in QCD, including contributions from both hadronlike and pointlike
photons. We show that the former dominates strongly below , and
the latter above this value. This fact makes for calculable, whereas for it serves to constrain the
small- gluon density in the photon. Both ranges in are accessible at
LEP2. Theoretical uncertainties are well under control. We present rates for
single-tag events for the process for for LEP2.
Although these event rates are small, we believe a measurement of
is feasible.Comment: 7 pages Latex, with 2 eps figs., uuencode
Model-independent QED corrections to photon structure-function measurements
We present the first calculation of QED radiative corrections to
deep-inelastic electron-photon scattering in terms of those variables that are
reconstructed in measurements of the photon structure function in
electron-positron collisions. In order to cover the low- region, we do not
invoke the QCD-improved parton model but rather express our results in terms of
the photon structure functions. Both analytical and numerical results are
given.Comment: Latex, 8 pages, 3 figures, uses epsfig.sty, 12pt.st
W Plus Heavy Quark Production at the Tevatron
We summarize the motivations for and the status of the calculation of the heavy quark production process in colliders to Next-to-Leading
Order in QCD. This process can be used to constrain the strange quark
distribution function at high at the Tevatron, and also to study the
bottom content of ~jet events. In addition, when crossed, the calculation
essentially describes the single top quark production process to
Next-to-Leading Order in QCD.Comment: Presented by S. Keller at DPF94 Meeting, Albuquerque, New Mexico,
August 1-6,1994. 4 pages, no macros, no figures. Fermilab-Conf-94/260-T,
FSU--HEP--940817. A postscript file is available via anonymous ftp at
hepsg1.physics.fsu.edu, file is /pub/keller/fsu-hep-940817.p
Top Quark Production Cross Section
The production rate for top quarks at the Fermilab Tevatron is presented
using the exact order corrected cross section and the resummation
of the leading soft gluon corrections in all orders of perturbation theory.Comment: preprint FERMILAB-Pub-93/270-T, ITP-SB-93-55, THU-93/23, Latex 9
pages, 8 postscript figures, uuencoded and appended at end of fil
Top physics at the ILC and hadron colliders
I discuss a selection of recent developments in top quark physics relevant for either ILC or Tevatron/LHC, or both
Heavy Quark Production in Deep-Inelastic Scattering at HERA
We discuss two topics in the production of heavy quarks in deep-inelastic
scattering: the next-to-leading order Monte-Carlo HVQDIS and the
next-to-leading logarithmic resummation of soft gluon effects, including
estimates of next-to-next-to-leading order corrections therefrom.Comment: 10 pages, 10 figures, To appear in Proceedings of Monte Carlo
Generators for HERA Physics, Hamburg 1998/99 Figures update
- âŠ