Supersymmetry breaking through transparent extra dimensions

Abstract

We propose a new framework for mediating supersymmetry breaking through an extra dimension. It predicts positive scalar masses and solves the supersymmetric flavor problem. Supersymmetry breaks on a "source" brane that is spatially separated from a parallel brane on which the standard model matter fields and their superpartners live. The gauge and gaugino fields propagate in the bulk, the latter receiving a supersymmetry breaking mass from direct couplings to the source brane. Scalar masses are suppressed at the high scale but are generated via the renormalization group. We briefly discuss the spectrum and collider signals for a range of compactification scales. *

Superpartner spectrum of minimal gaugino-gauge mediation

“…The coupling g 2 is a free parameter, which controls how much the sfermions mass suppression factor is uniform among the three SM gauge groups; in the formal limit g 2 ≫ g (3) SM , the suppression factors are the same for each gauge group. In the opposite limit, where…”

“…In this note, we compute the sparticle spectrum in the minimal construction [1,2] of "gaugino mediation" [3,4] at the weak scale. Our renewed interest in these models (which are a particular example of General Gauge Mediation [5]) is twofold.…”

Purley Four-dimensional Viable Anomaly Mediation

“…The U (1) B−L gauge field is allowed to propagate in the bulk, but is broken at a high scale unlike in the gauginomediation models [15]. We now review the process by which the U (1) B−L breaking sector provides a D-term.…”

Collider signatures of gravitino dark matter with a sneutrino NLSP

“…[20]. A particularly attractive realisation of non-universal boundary conditions is the case of gaugino mediation [21,22], where supersymmetry breaking occurs on a four-dimensional brane within a higher-dimensional theory. In such a setting, fields which live in different places will naturally feel such breaking with different strength.…”