U(1) mediation of flux supersymmetry breaking

Grimm, Thomas W.; Klemm, Albrecht

doi:10.1088/1126-6708/2008/10/077

Cited by 30 publications

(42 citation statements)

References 134 publications

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“…It is worth noting that our proposal differs slightly in its implementation of the differential structure from similar setups such as presented in [70,74,75]. Once the first relation in (3.13) is introduced the natural complement relation involves a set of non-closed 5-forms rather than the 3-forms we have introduced.…”

Section: Jhep12(2011)004mentioning

confidence: 99%

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Massive Abelian gauge symmetries and fluxes in F-theory

Grimm

Kerstan

Palti

et al. 2011

J. High Energ. Phys.

110

348

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F-theory compactified on a Calabi-Yau fourfold naturally describes nonAbelian gauge symmetries through the singularity structure of the elliptic fibration. In contrast Abelian symmetries are more difficult to study because of their inherently global nature. We argue that in general F-theory compactifications there are massive Abelian symmetries, such as the uplift of the Abelian part of the U(N ) gauge group on D7-branes, that arise from non-Kähler resolutions of the dual M-theory setup. The four-dimensional F-theory vacuum with vanishing expectation values for the gauge fields corresponds to the Calabi-Yau limit. We propose that fluxes that are turned on along these U(1)s are uplifted to non-harmonic four-form fluxes. We derive the effective four-dimensional gauged supergravity resulting from F-theory compactifications in the presence of the Abelian gauge factors including the effects of possible fluxes on the gauging, tadpoles and matter spectrum.

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Section: Jhep12(2011)004mentioning

confidence: 99%

“…in [74]. These R-R gauge bosons become massive by 'eating' an R-R axion which sits with the non-Calabi-Yau deformations in the same supermultipet.…”

Section: Jhep12(2011)004mentioning

confidence: 99%

Massive Abelian gauge symmetries and fluxes in F-theory

Grimm

Kerstan

Palti

et al. 2011

J. High Energ. Phys.

110

348

View full text Add to dashboard Cite

show abstract

“…The possibility of having hidden U(1) gauge symmetries has also motivated interesting applications in the context of supersymmetric models. For instance, it has been suggested that hidden U(1)'s can lead to a possible mechanism for mediating SUSY breaking to the visible sector in a flavor independent way [11][12][13][14]. Also, mixing of MSSM neutralinos with hidden U(1) gauginos can be a relevant signature at the LHC [15][16][17][18].…”

Section: Jhep09(2011)110mentioning

confidence: 99%

RR photons

Cámara

Ibáñez

Marchesano

2011

J. High Energ. Phys.

163

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Type II string compactifications to 4d generically contain massless RamondRamond U(1) gauge symmetries. However there is no massless matter charged under these U(1)'s, which makes a priori difficult to measure any physical consequences of their existence. There is however a window of opportunity if these RR U(1)'s mix with the hypercharge U(1) Y (hence with the photon). In this paper we study in detail different avenues by which U(1) RR bosons may mix with D-brane U(1)'s. We concentrate on Type IIA orientifolds and their M-theory lift, and provide geometric criteria for the existence of such mixing, which may occur either via standard kinetic mixing or via the mass terms induced by Stückelberg couplings. The latter case is particularly interesting, and appears whenever D-branes wrap torsional p-cycles in the compactification manifold. We also show that in the presence of torsional cycles discrete gauge symmetries and Aharanov-Bohm strings and particles appear in the 4d effective action, and that type IIA Stückelberg couplings can be understood in terms of torsional (co)homology in M-theory. We provide examples of Type IIA Calabi-Yau orientifolds in which the required torsional cycles exist and kinetic mixing induced by mass mixing is present. We discuss some phenomenological consequences of our findings. In particular, we find that mass mixing may induce corrections relevant for hypercharge gauge coupling unification in F-theory SU(5) GUT's.

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“…by extending the non-compact setups of [292] to D5-branes on vanishing two-cycles in compact Calabi-Yau orientifolds. A different application is provided by explicit GUT model building in Type IIB compactifications, where it would be of particular importance to include matter from intersecting D5-branes using similar techniques as developed for intersecting D7-branes [293,294] 2 . Furthermore, the effective action allows also some general conclusions about moduli stabilization.…”

Section: The Su(3)-structure On the Manifoldẑmentioning

confidence: 99%

Holomorphic couplings in non‐perturbative string compactifications

Klevers

2011

Fortschritte der Physik

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In this review article 1 we present an analysis of several aspects of four-dimensional, nonperturbative N = 1 compactifications of string theory. Our study focuses on brane dynamics and their effective physics as encoded in the holomorphic couplings of the low-energy N = 1 effective action, most prominently the superpotential W . This article is divided into three parts. In part one we derive the effective action of a spacetime-filling D5-brane in generic Type IIB Calabi-Yau orientifold compactifications. In the second part we invoke tools from string dualities, namely from F-theory, heterotic/F-theory duality and mirror symmetry, for a more elaborate study of the dynamics of (p, q) 7-branes and heterotic five-branes. In this context we perform exact computations of the complete perturbative effective superpotential, both due to branes and background fluxes. Finally, in the third part we present a novel geometric description of five-branes in Type IIB and heterotic M-theory Calabi-Yau compactifications via a non-Calabi-Yau threefoldẐ 3 , that is canonically constructed from the original fivebrane and the Calabi-Yau threefold Z 3 via a blow-up. We use the blow-up threefoldẐ 3 to derive open-closed Picard-Fuchs differential equations, that govern the complete effective brane and flux superpotential. In addition, we present first evidence to interpretẐ 3 as a flux compactification geometrically dual to the original five-brane by defining an SU (3)-structure onẐ 3 , that is generated dynamically by the five-brane backreaction.

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U(1) mediation of flux supersymmetry breaking

Cited by 30 publications

References 134 publications

Massive Abelian gauge symmetries and fluxes in F-theory

Massive Abelian gauge symmetries and fluxes in F-theory

RR photons

Holomorphic couplings in non‐perturbative string compactifications

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