The soft supersymmetry breaking in D=5 supergravity compactified on S_1/Z_2 orbifolds

Diamandis, G. A.; Georgalas, B. C.; Kouroumalou, P.; Lahanas, A. B.

doi:10.48550/arxiv.1001.5382

Cited by 1 publication

(8 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In (32) we tacitly assume that the Kähler function K V (ϕ, ϕ * ) of the observable fields can be expanded as K V (ϕ, ϕ * ) = ϕϕ * + ... so that the first terms yield canonical kinetic terms for the scalar fields ϕ . With k 2 5 appearing in front of the interactions above the dimensionality of the fields Ψ m , Ψ i is two, that is their mass dimension in the five-dimensional space-time, which implies their propagators are massless 8 .…”

Section: The Mediation Of the Supersymmetry Breakingmentioning

confidence: 99%

“…The aforementioned scheme was exemplified in previous works [31,32], where observable fields were assumed to live on the visible brane interacting with the bulk gravity which mediates supersymmetry breaking which takes place at the hidden brane. It would be interesting to see if this mechanism can be generalized in such a way that is embedded in the framework of a higher dimensional supergravity theory and if so what are the consequences for the supersymmetry breaking scale and its implications for phenomenology.…”

Section: Introductionmentioning

confidence: 99%

“…The aforementioned scheme was employed in order to study the brane to brane mediation of the supersymmetry breaking mechanism. In order to pave the ground for the discussion that follows we only recall here the salient qualitative features of the mechanism deployed in previous works [31,32], where the above mechanism was employed. The hidden and the visible branes, located at the end points of S 1 /Z 2 , communicate through gravitational interactions which, we assume, are the only forces that propagate in the bulk and the only ones that can convey the message of supersymmetry breaking from the hidden brane to the observable fields that are located on the visible brane.…”

Section: Introductionmentioning

confidence: 99%

“…The orbifolding breaks one of the two supersymmetries of the N = 2 supergravity, while the remaining local supersymmetry is broken on the hidden brane, giving mass to the gravitino, by a properly chosen superpotential W H , and this breaking is transmitted to the visible fields. This idea has been exemplified in a simple model [32] and it has been shown that finite soft supersymmetry breaking terms can be induced which depend on the gravitino mass m 3/2 , and the size of the orbifold S 1 /Z 2 . Therefore the seeds of supersymmetry breaking reside on the hidden brane, where a superpotential breaks local supersymmetry, and it is essential that the brane-bulk field interactions are fully known and in particular those that are relevant for the transmission of supersymmetry breaking from one brane to the other.…”

Section: Introductionmentioning

confidence: 99%

“…We remark that the role of the radion multiplet is essential in this approach since its presence yields contributions that can make the soft masses squared of the squarks and sleptons be non-tachyonic. In [31,32] we exemplify the above mechanism in a simple prototype and showed that finite soft supersymmetry breaking parameters are indeed generated by loops, which involve the gravitino and the fermion of the radion multiplet, and their magnitudes can be determined.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Six-dimensional origin of gravity-mediated brane to brane supersymmetry breaking

et al. 2014

Self Cite

View full text Add to dashboard Cite

Four dimensional supergravities may be the right framework to describe particle physics at low energies. Its connection to the underlying string theory can be implemented through higher dimensional supergravities which bear special characteristics. Their reduction to four dimensions breaks supersymmetry whose magnitude depends both on the compactifying manifold and the mechanism that generates the breaking. In particular compactifications, notably on a S 1 /Z 2 orbifold, the breaking of supersymmetry occuring on a hidden brane, residing at one end of S 1 /Z 2 , is communicated to the visible brane which lies at the other end, via gravitational interactions propagating in the bulk. This scenario has been exemplified in the framework of the N = 2, D = 5 supergravity. In this note, motivated by the recent developments in the field, related to the six-dimensional description of the supergravity theory, we study the N = 2, D = 5 supergravity theory as originating from a D = 6 supergravity which, in addition to the gravity, includes a number of tensor multiplets. This reduces to N = 1, D = 4 supergravity in a two step manner, first by Kaluza-Klein reduction followed by a S 1 /Z 2 orbifold compactification. The resulting theory has striking similarities with the one that follows from the single standalone N = 2, D = 5 supergravity, with no reference to the underlying higher dimensional D = 6 supergravity, and a structure that makes the supersymmetry breaking mechanisms studied in the past easily incorporated in higher dimensional schemes.

show abstract

Section: The Mediation Of the Supersymmetry Breakingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations