14,668 research outputs found
Universal Aspects of Gauge Field Localization on Branes in -dimensions
In this work, we study the general properties of the -vector field
localization on -brane with co-dimension . We consider a
conformally flat metric with the warp factor depending only on the transverse
extra dimensions. We employ the geometrical coupling mechanism and find an
analytical solution for the gauge field valid for any warp factor. Using
this solution we find that the only condition necessary for localization is
that the bulk geometry is asymptotically AdS. Therefore, our solution has an
universal validity for any warp factor and is independent of the particular
model considered. We also show that the model has no tachyonic modes. Finally,
we study the scalar components of the -vector field. As a general result, we
show that if we consider the coupling with the tensor and the Ricci scalar in
higher co-dimensions, there is an indication that both sectors will be
localized. As a concrete example, the above techniques are applied for the
intersecting brane model. We obtain that the branes introduce boundary
conditions that fix all parameters of the model in such a way that both
sectors, gauge and scalar fields, are confined.Comment: 26 pages, 5 figures, Accepted version for publication in JHE
Inverse type II seesaw mechanism and its signature at the LHC and ILC
The advent of the LHC, and the proposal of building future colliders as the
ILC, both programmed to explore new physics at the TeV scale, justifies the
recent interest in studying all kind of seesaw mechanisms whose signature lies
on such energy scale. The natural candidate for this kind of seesaw mechanism
is the inverse one. The conventional inverse seesaw mechanism is implemented in
an arrangement involving six new heavy neutrinos in addition to the three
standard ones. In this paper we develop the inverse seesaw mechanism based on
Higgs triplet model and probe its signature at the LHC and ILC. We argue that
the conjoint analysis of the LHC together with the ILC may confirm the
mechanism and, perhaps, infer the hierarchy of the neutrino masses.Comment: 24 pages, 22 figure
Multidisciplinary Representation of Patients: The Potential for Ethical Issues and Professional Duty Conflicts in the Medical-Legal Partnership Model
Statistical stability and limit laws for Rovella maps
We consider the family of one-dimensional maps arising from the contracting
Lorenz attractors studied by Rovella. Benedicks-Carleson techniques were used
by Rovella to prove that there is a one-parameter family of maps whose
derivatives along their critical orbits increase exponentially fast and the
critical orbits have slow recurrent to the critical point. Metzger proved that
these maps have a unique absolutely continuous ergodic invariant probability
measure (SRB measure).
Here we use the technique developed by Freitas and show that the tail set
(the set of points which at a given time have not achieved either the
exponential growth of derivative or the slow recurrence) decays exponentially
fast as time passes. As a consequence, we obtain the continuous variation of
the densities of the SRB measures and associated metric entropies with the
parameter. Our main result also implies some statistical properties for these
maps.Comment: 1 figur
Anisotropy and percolation threshold in a multifractal support
Recently a multifractal object, , was proposed to study percolation
properties in a multifractal support. The area and the number of neighbors of
the blocks of show a non-trivial behavior. The value of the
probability of occupation at the percolation threshold, , is a function
of , a parameter of which is related to its anisotropy. We
investigate the relation between and the average number of neighbors of
the blocks as well as the anisotropy of
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