3,397 research outputs found
Fermion Condensate Model of Electroweak Interactions
A new dynamical symmetry breaking model of electroweak interactions is
proposed based on interacting fermions. Two fermions of different SU_{L}(2)
representations form a symmetry breaking condensate and generate the lepton and
quark masses. The weak gauge bosons get their usual standard model masses from
a gauge invariant Lagrangian of a doublet scalar field composed of the new
fermion fields. The new fermion fields become massive by condensation. It is
shown that the new charged fermions are produced at the next linear colliders
in large number. The model is a low energy one which cannot be renormalized
perturbatively. For the parameters of the model unitarity constraints are
presented.Comment: 8 pages, 1 figur
An alternative model for the electroweak symmetry breaking sector and its signature in future e-gamma colliders
We perform a preliminary study of the deviations from the Standard Model
prediction for the cross section for the process . We work in the context of a higgsless chiral lagrangian model that
includes an extra vector resonance and an anomalous coupling.
We find that this cross section can provide interesting constraints on the free
parameters of the model once it is measured in future colliders.Comment: LaTex , 14 pages, 5 figures not included but available as postscript
files upon request, NUB-3086/94-T
Is charm the key to understanding diffraction in DIS ?
This talk concerns the production of open charm in diffractive deep inelastic
scattering. This has been calculated recently in the context of the
semi-classical approach to diffraction. A comparison is made to approaches in
which the diffractive exchange is modelled by the exchange of two gluons in the
-channel. Two phenomenological test of the underlying partonic process are
discussed.Comment: 6 pages, latex, 5 figures. Talk given at the diffractive working
group of DIS '97, Chicago Il. The required AIP style files are provide
Higgs and Heavy Quarks Diffractive Production
In this talk, given at "RunII QCD and weak boson WS", we give the highest of
reasonable estimates for the value of cross section of the double Pomeron Higgs
meson production and suggest a new mechanism for heavy quark diffractive
production which will dominate at the Tevatron energies.Comment: 4 pages, 2 figure
Factorization and Non-factorization in Diffractive Hard Scattering
Factorization, in the sense defined for inclusive hard scattering, is
discussed for diffractive hard scattering. A factorization theorem similar to
its inclusive counterpart is presented for diffractive DIS. For hadron-hadron
diffractive hard scattering, in contrast to its inclusive counterpart, the
expected breakdown of factorization is discussed. Cross section estimates are
given from a simple field theory model for non-factorizing
double-pomeron-exchange (DPE) dijet production with and without account for
Sudakov suppression.Comment: 6 pages, Latex, DIS 97 tal
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