13,324 research outputs found
The spectral dimension of non-generic branched polymers
We show that the spectral dimension on non-generic branched polymers with
positive susceptibility exponent is given by . For those
models with we find that .Comment: LATTICE98(surfaces
The Spectral Dimension of Non-generic Branched Polymer Ensembles
We show that the spectral dimension on non-generic branched polymer models
with susceptibility exponent is given by . For those
models with negative we find that the spectral dimension is 2.Comment: 10 pages plain LateX2e, 1 eps figures included using eps
Three-State Complex Valued Spins Coupled to Binary Branched Polymers in Two-Dimensional Quantum Gravity
A model of complex spins (corresponding to a non-minimal model in the
language of CFT) coupled to the binary branched polymer sector of quantum
gravity is considered. We show that this leads to new behaviour.Comment: 3 pages, Latex2e, 2 eps figures, uses espcrc2 and epsf. Contribution
to LATTICE 97, to appear in the Proceeding
The MSSM from Scherk-Schwarz Supersymmetry Breaking
We present a five-dimensional model compactified on an interval where
supersymmetry is broken by the Scherk-Schwarz mechanism. The gauge sector
propagates in the bulk, two Higgs hypermultiplets are quasilocalized, and quark
and lepton multiplets localized, in one of the boundaries. The effective
four-dimensional theory is the MSSM with very heavy gauginos, heavy squarks and
light sleptons and Higgsinos. The soft tree-level squared masses of the Higgs
sector can be negative and they can (partially) cancel the positive one-loop
contributions from the gauge sector. Electroweak symmetry breaking can then
comfortably be triggered by two-loop radiative corrections from the top-stop
sector. The fine tuning required to obtain the electroweak scale is found to be
much smaller than in the MSSM, with essentially no fine-tuning for few TeV
gaugino masses. All bounds from direct Higgs searches at LEP and from
electroweak precision observables can be satisfied. The lightest supersymmetric
particle is a (Higgsino-like) neutralino that can accomodate the abundance of
Dark Matter consistently with recent WMAP observations.Comment: 23 pages, 3 figure
Influence of labyrinth orientation relative to gravity on responses elicited by stimulation of the horizontal semicircular canals
Gravity labyrinth orientation influence on responses from stimulation of horizontal semicircular canal
- …