1,007 research outputs found
Realization of Minimal Supergravity
Minimal supergravity mediation of supersymmetry breaking has attracted much
attention due to its simplicity, which leads to its predictive power. We
consider how Nature possibly realizes minimal supergravity through inflationary
selection of the theory. Minimality is impressively consistent with the present
observational bounds and it might be tested with the aid of low-energy soft
parameters obtained in future experiments.Comment: 18 pages, 5 figure
Supersymmetry-Breaking Models of Inflation
We consider dynamical models of supersymmetry breaking which naturally
incorporate cosmological inflation. The inflaton plays an inevitable role in
dynamical SUSY breaking and the hierarchical scales of inflation and SUSY
breaking are simultaneously realized through a single dynamics.Comment: 4 pages, late
Strongly Coupled Messenger Gauge Theory
We consider gauge-mediated models of supersymmetry (SUSY) breaking with
strongly coupled nonabelian messenger gauge theory. After integrating out the
SUSY-breaking and messenger sectors, we directly see that the effective Kahler
potential transmits the SUSY breaking to the standard model sector.Comment: 7 pages, late
Another Perturbative Expansion in Nonabelian Gauge Theory
We consider a new perturbation scheme in nonabelian gauge theory. Pure
Yang-Mills theory in three dimensions is taken as a concrete example. The
zeroth-order in the perturbative expansion is given by BF theory coupled to a
St{\" u}ckelberg-like field. The effective coupling for the expansion can be
small in the infrared regime, which implies that nonperturbative treatment of
Yang-Mills theory may be partially reduced to that of BF theory.Comment: PHYZZX, 8 pages, KUNS 109
On Nonlinear Gauge Theory from a Deformation Theory Perspective
Nonlinear gauge theory is a gauge theory based on a nonlinear Lie algebra
(finite W algebra) or a Poisson algebra, which yields a canonical star product
for deformation quantization as a correlator on a disk. We pursue nontrivial
deformation of topological gauge theory with conjugate scalars in two
dimensions. This leads to two-dimensional nonlinear gauge theory exclusively,
which implies its essential uniqueness. We also consider a possible extension
to higher dimensions.Comment: 6 pages, late
Derivative Expansion in Quantum Theory of Gravitation
The cosmological term prevents perturbation based on derivative expansion in
Einstein gravity. We consider quantum theory of gravitation invariant under
volume-preserving diffeomorphism and Weyl transformation, which is suitable for
derivative expansion.Comment: phyzzx, 8 pages, UT-68
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