4,288 research outputs found
Deconstructed Higgsless Models at LHC: The Top Triangle Moose
We describe a deconstructed Higgsless model in which electroweak symmetry
breaking results largely from a Higgsless mechanism while the top quark mass is
generated by a topcolor mechanism. The top quark mass arises from a Yukawa
coupling to an effective top-Higgs which develops a small vacuum expectation
value. Both the heavy partners of the electoweak gauge bosons and those for the
SM fermions can be light enough to be visible at LHC.Comment: 5 pages, 3 figures; from the Proceedings of the 2010 Rencontres de
Bloi
Studies on the Accumulation of Chromium in Fenugreek
Studying Cr uptake by Fenugreek, we note that the maximum concentration of Cr takes place in the shells of the pods followed by leaves, stems and seeds in that order. Interestingly, applied higher doses of Cr does not increase accumulation of Cr in the stems, rather Cr content in the stems levels off. However, the maximum dispersal/distribution of Cr taken up is in the leaves
Chromium uptake by Fenugreek
Fenugreek (Trigonella foenum- graecum) is both herb (leaves) and a spice (seed) belonging to the family Fabaceae. Fenugreek leaves and seeds are used in the cuisine of India. Fenugreek also has medicinal value. Fenugreek seeds are known to reduce serum glucose and improve glucose tolerance and hence are prescribed to diabetic patients. In the recent past supplemental Chromium is being prescribed to diabetic patients to activate (increased- insulin binding, insulin receptor number, insulin receptor phosphorylation) insulin. Plants can uptake substantial quantities of toxic metals from contaminated soils if these soils are well ameliorated. 

It is then probable that the medicinal efficacy of Fenugreek in the case of diabetes could be enhanced if it takes up chromium from the soil. Preliminary studies are being conducted to note the chromium uptake by Fenugreek from soils which are applied with potassium dichromate
Plan and Implementation of Flexible D-Statcom for Mitigating Power Quality Problems and Improve the Distribution System Performance
This paper gives point by point data about adaptable D-STATCOM, which is utilized to decreases a wide range of deficiencies and enhance control quality and work as a Distributed Generation. It gives proceeds with power supply to the heaps even the primary source is separated and doesn't intrude. In this manner D-STATCOM works same as an adaptable D-STATCOM and consequently is known as Flexible D-STATCOM. The execution of Flexible D-STATCOM framework is to enhance the power quality by decreasing flaws in circulation framework execution under a wide range of framework related unsettling influences and framework lopsided deficiencies, for example, Line-to-Line and DLG blames under islanding condition. 12-beat D-STATCOM setup is used with IGBT which is planned and is utilized as a part of deciding the graphical portrayal of the D-STATCOM utilizing the product PSCAD/EMTDC electromagnetic transient recreation program. The unwavering quality and heartiness of the control conspires in the framework is dictated by the voltage aggravations happened by Line to line and twofold line to ground issues and islanded working condition are along these lines confirmed in the outcomes acquired in reproduction
Z to b bbar and Chiral Currents in Higgsless Models
In this note we compute the flavor-dependent chiral-logarithmic corrections
to the decay Z to b bbar in the three site Higgsless model. We compute these
corrections diagrammatically in the "gaugeless" limit in which the electroweak
couplings vanish. We also compute the chiral-logarithmic corrections to the
decay Z to b bbar using an RGE analysis in effective field theory, and show
that the results agree. In the process of this computation, we compute the form
of the chiral current in the gaugeless limit of the three-site model, and
consider the generalization to the N-site case. We elucidate the Ward-Takahashi
identities which underlie the gaugeless limit calculation in the three-site
model, and describe how the result for the Z to b bbar amplitude is obtained in
unitary gauge in the full theory. We find that the phenomenological constraints
on the three-site Higgsless model arising from measurements of Z to b bbar are
relatively mild, requiring only that the heavy Dirac fermion be heavier than 1
TeV or so, and are satisfied automatically in the range of parameters allowed
by other precision electroweak data.Comment: 19 pages, 7 embedded eps figures (additional reference added
Identifying Better Effective Higgsless Theories via W_L W_L Scattering
The three site Higgsless model has been offered as a benchmark for studying
the collider phenomenology of Higgsless models. In this talk, we present how
well the three site Higgsless model performs as a general representative of
Higgsless models in describing W_L W_L scattering, and which modifications can
make it more representative. We employ general sum rules relating the masses
and couplings of the Kaluza-Klein (KK) modes of the gauge fields in continuum
and deconstructed Higgsless models as a way to compare the different theories.
After comparing the three site Higgsless model to flat and warped continuum
Higgsless models, we analyze an extensions of the three site Higgsless model,
namely, the Hidden Local Symmetry (HLS) Higgsless model. We demonstrate that
W_LW_L scattering in the HLS Higgsless model can very closely approximate
scattering in the continuum models, provided that the parameter `a' is chosen
to mimic rho-meson dominance of pi-pi scattering in QCD
Discovering New Gauge Bosons of Electroweak Symmetry Breaking at LHC-8
We study the physics potential of the 8TeV LHC (LHC-8) to discover, during
its 2012 run, a large class of extended gauge models or extra dimensional
models whose low energy behavior is well represented by an SU(2)^2 x U(1) gauge
structure. We analyze this class of models and find that with a combined
integrated luminosity of 40-60/fb at the LHC-8, the first new Kaluza-Klein mode
of the W gauge boson can be discovered up to a mass of about 370-400 GeV, when
produced in association with a Z boson.Comment: PRD final version (only minor refinements showing the consistency
with new LHC data), 11 pages, 5 Figs, 2 Table
Low-Energy Effective Theory, Unitarity, and Non-Decoupling Behavior in a Model with Heavy Higgs-Triplet Fields
We discuss the properties of a model incorporating both a scalar electroweak
Higgs doublet and an electroweak Higgs triplet. We construct the low-energy
effective theory for the light Higgs-doublet in the limit of small (but
nonzero) deviations in the rho parameter from one, a limit in which the triplet
states become heavy. For small deviations in the rho parameter from one,
perturbative unitarity of WW scattering breaks down at a scale inversely
proportional to the renormalized vacuum expectation value of the triplet field
(or, equivalently, inversely proportional to the square-root of the deviation
of the rho parameter from one). This result imposes an upper limit on the
mass-scale of the heavy triplet bosons in a perturbative theory; we show that
this upper bound is consistent with dimensional analysis in the low-energy
effective theory. Recent articles have shown that the triplet bosons do not
decouple, in the sense that deviations in the rho parameter from one do not
necessarily vanish at one-loop in the limit of large triplet mass. We clarify
that, despite the non-decoupling behavior of the Higgs-triplet, this model does
not violate the decoupling theorem since it incorporates a large dimensionful
coupling. Nonetheless, we show that if the triplet-Higgs boson masses are of
order the GUT scale, perturbative consistency of the theory requires the
(properly renormalized) Higgs-triplet vacuum expectation value to be so small
as to be irrelevant for electroweak phenomenology.Comment: Revtex, 11 pages, 7 eps figures included; references updated and
three footnotes adde
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