Supersymmetry breaking by constant boundary superpotentials in warped space

Abstract

Supersymmetry breaking and radius stabilization by constant superpotentials localized at boundaries is studied in a supersymmetric warped space model where a hypermultiplet, a compensator and a radion multiplet are taken into account. Soft mass induced by the anomaly mediation can be of the order of 100GeV and can be dominant compared to that mediated by bulk fields. A lighter physical mode composed of the radion and the moduli can have mass of the order of a TeV and the gravitino mass can be of the order of 10 7 GeV. The radius is stabilized by the presence of the constant boundary superpotentials. We also find that the mass splitting has an interesting dependence on the bulk mass parameter c.

Radius stabilization by constant boundary superpotentials in warped space

“…In this paper, we calculate the radion and moduli masses, the gravitino mass and the induced soft masses in the model given by Ref. [12]. We find that a lighter physical mode composed of the radion and the moduli can have masses of the order of a TeV and that the gravitino mass can be of the order of 10 7 GeV.…”

“…In order for the scenario to be phenomenologically viable, the compactification radius should be stabilized. In the previous paper [12], we gave a model of radius stabilization. Here we investigated supersymmetry-breaking effects caused by constant (field independent) superpotentials localized at fixed points in the supersymmetric Randall-Sundrum model.…”

ON ELECTROWEAK BARYOGENESIS IN THE LITTLEST HIGGS MODEL WITH T-PARITY

“…Although indications of strong first-order EWPT have been reported in a number of papers involving Supersymmetric [11][12][13][14][15][16][17][18][19][20], Two-Higgs Doublet [21,22] and Extra-dimensional models [29][30][31], the needed finite-temperature calculations in Little Higgs Models are, so far, very few [32][33][34]. However, such studies should be quite interesting as, some of these [32,34] have exhibited a not-so-common and intriguing feature of finite-temperature effects, viz., nonrestoration of symmetry at high temperature [32,[34][35][36][37][38], which might reveal new aspects of cosmological baryogenesis.…”

Anomaly Mediation and Radius Stabilization by a Boundary Constant Superpotential in a Warped Space

“…With the backgrounds (4) and (5), the potential is obtained as [1] V = 3M (1 − 2c)(e 2Rkπ − 1)N + 2(e (2c−1)Rkπ − 1)…”

“…which is a relatively large gravitino mass specific to the SUSY Randall-Sundrum model [1]. 1 The coefficients of each term in (17) are assumed to be an order unity.…”