Current correlators for general gauge mediation

We locate a supersymmetry breaking hidden sector and supersymmetric standard model on different lattice points of an orbifold moose. The hidden sector is encoded in a set of current correlators and the effects of the current correlators are mediated by the lattice site gauge groups with "lattice hopping" functions and through the bifundamental matter that links the lattice sites together. We show how the gaugino mass, scalar mass and Casimir energy of the lattice can be computed for a general set of current correlators and then give specific formulas when the hidden sector is specified to be a generalised messenger sector. The results reproduce the effect of five dimensional gauge mediation from a purely four dimensional construction.

Section: Introductionmentioning

confidence: 99%

General gauge mediation and deconstruction

McGarrie

2010

“…is the Fourier transform of the Wick contracted two point function fo the gaugino current j α , evaluated at zero momenta. For more details of encoding gauge mediated supersymmetry breaking into current correlators we highlight [1,21,22,23,24,25,26,27,28,29]. On the visible fixed point (visible brane of figure 1) we locate chiral superfields to represent the supersymmetric standard model matter, whose scalar components we will refer to as an sfermion.…”

Section: Frameworkmentioning

confidence: 99%

Hybrid gauge mediation

McGarrie

2011

“…The calculation of the gauge mediation masses in principle requires the calculation of the current-current correlators of the global symmetries, in the formalism introduced in [29]. An explicit expression for the gaugino masses at the leading order in SUSYbreaking in perturbed N = 2 theories was found in [30], for generic N f and N c . In this more general case the Coulomb branch can parameterized by N c eigenvalues a k , with the constraint a k = 0.…”

Section: Comments On Direct Gauge Mediationmentioning

confidence: 99%

“…In this more general case the Coulomb branch can parameterized by N c eigenvalues a k , with the constraint a k = 0. In order to facilitate the computation of the gaugino masses, in [30] the global symmetry U(1) F × SU(N f ) is gauged by introducing a full N = 2 vector hypermultiplet; in this way the mass parameters m a of the original SU(N c ) theory get identified with the adjoint scalar eigenvalues of the N = 2 U(1) F × SU(N f ) vector hypermultiplet. In the limit in which the spectator U(1) F × SU(N f ) gauge couplings are small, the gaugino mass matrix is…”

Section: Comments On Direct Gauge Mediationmentioning

confidence: 99%

On metastable vacua in perturbed $ \mathcal{N} = 2 $ theories

Auzzi

Rabinovici

2010

We study supersymmetry breaking in metastable vacua on the Coulomb branch of perturbed N = 2 gauge theories, with gauge group SU (2) and different matter content (N f = 0, 2, 4). The theory is deformed with a superpotential which is a cubic polynomial in u = Tr Φ 2 , where Φ is the adjoint superfield. The allowed region of the perturbation parameters in this N = 1 theory is plotted as a function of the moduli space coordinate. In the asymptotically free cases a significant fine-tuning in the perturbation parameters is needed to achieve metastable vacua in the weakly coupled region of the moduli space; a lower degree of fine-tuning is required in the strongly coupled regime. In the conformal case (N f = 4 fundamentals) we find that also an explicit mass for the hypermultiplets must be introduced in order to generate metastable vacua. In the case of N f = 2 fundamentals it is possible to achieve a metastable vacuum also in the neighborhood of the Argyres-Douglas fixed point (even if a large degree of fine-tuning is needed in this limit). Direct gauge mediation is discussed; gaugino masses of the same order of the SUSY-breaking can be obtained.