Scherk-Schwarz breaking yields a Dirac gravitino whose mixing lacks a local N=1 superspace realization in minimal supergravity and whose matter couplings produce standard scalar thresholds plus UV-dependent Dirac fermion masses.
Out Of This World Supersymmetry Breaking
5 Pith papers cite this work. Polarity classification is still indexing.
5
Pith papers citing it
abstract
We show that in a general hidden sector model, supersymmetry breaking necessarily generates at one-loop a scalar and gaugino mass as a consequence of the super-Weyl anomaly. We study a scenario in which this contribution dominates. We consider the Standard Model particles to be localized on a (3+1)-dimensional subspace or ``3-brane'' of a higher dimensional spacetime, while supersymmetry breaking occurs off the 3-brane, either in the bulk or on another 3-brane. At least one extra dimension is assumed to be compactified roughly one to two orders of magnitude below the four-dimensional Planck scale. This framework is phenomenologically very attractive; it introduces new possibilities for solving the supersymmetric flavor problem, the gaugino mass problem, the supersymmetric CP problem, and the mu-problem. Furthermore, the compactification scale can be consistent with a unification of gauge and gravitational couplings. We demonstrate these claims in a four-dimensional effective theory below the compactification scale that incorporates the relevant features of the underlying higher dimensional theory and the contribution of the super-Weyl anomaly. Naturalness constraints follow not only from symmetries but also from the higher dimensional origins of the theory. We also introduce additional bulk contributions to the MSSM soft masses. This scenario is very predictive: the gaugino masses, squark masses, and $A$ terms are given in terms of MSSM renormalization group functions.
citation-role summary
background 2
method 1
citation-polarity summary
verdicts
UNVERDICTED 5representative citing papers
Supersymmetry can stabilize an ultralight dilaton dark matter candidate, but gravity restricts its Standard Model couplings to undetectable levels, making consistent model building involved.
Magnetized SYM on (T^2)^3/(Z_2 x Z'_2) with 7-branes, fluxes, and Wilson lines produces MSSM chiral fields and semi-realistic hierarchical Yukawas for quarks and leptons.
Finite SUSY GUTs with reduction of couplings exhibit conformal behavior and AMSB-like soft terms without tachyons when connected to a Weyl-invariant supergravity with no-scale Kähler potential.
In supersymmetric DFSZ axion models, the LHC with 140 fb^{-1} can probe axion decay constants below 10^{11} GeV for higgsino masses under 1 TeV via displaced neutralino decays to axino LSPs.
citing papers explorer
-
(Pseudo-)Dirac Gravitinos
Scherk-Schwarz breaking yields a Dirac gravitino whose mixing lacks a local N=1 superspace realization in minimal supergravity and whose matter couplings produce standard scalar thresholds plus UV-dependent Dirac fermion masses.
-
Ultralight Dilatonic Dark Matter
Supersymmetry can stabilize an ultralight dilaton dark matter candidate, but gravity restricts its Standard Model couplings to undetectable levels, making consistent model building involved.
-
MSSM flavors from 7-brane configurations of magnetized SYM on $R^{1,3} \times (T^2)^3/(Z_2 \times Z'_2)$
Magnetized SYM on (T^2)^3/(Z_2 x Z'_2) with 7-branes, fluxes, and Wilson lines produces MSSM chiral fields and semi-realistic hierarchical Yukawas for quarks and leptons.
-
Emergence of conformal properties in Finite Grand Unified Theories via reduction of couplings
Finite SUSY GUTs with reduction of couplings exhibit conformal behavior and AMSB-like soft terms without tachyons when connected to a Weyl-invariant supergravity with no-scale Kähler potential.
-
Bridging the divide: axion searches and axino phenomenology at colliders
In supersymmetric DFSZ axion models, the LHC with 140 fb^{-1} can probe axion decay constants below 10^{11} GeV for higgsino masses under 1 TeV via displaced neutralino decays to axino LSPs.