Tadpole and Anomaly Cancellation Conditions in D-Brane Orbifold Models

Angulo, María E.; Bailin, David; Yang, Hangsheng

doi:10.1142/s0217751x03015234

Cited by 2 publications

(1 citation statement)

References 33 publications

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“…Given the null results thus far in sparticle searches, the recent insights into anti-Dbrane supersymmetry breaking, and the potential importance of the latter in cosmological model building, this paper develops the idea that quasi-realistic particle physics models, with non-standard realisations of supersymmetry, may be obtained using anti-D3-branes. Anti-D3-/D7-brane systems placed at orbifold singularities are known to lead to interesting low-energy particle spectra, comprising non-Abelian gauge groups, adjoint fermions, bifun-damental scalar and bifundamental fermions [52][53][54][55][56][57][58][59] (for reviews, see e.g. Refs.…”

Section: Introductionmentioning

confidence: 99%

Non-supersymmetric String Models from Anti-D3-/D7-branes in Strongly Warped Throats

Parameswaran,

Tonioni

2020

Preprint

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This article discusses model-building scenarios including anti-D3-/D7-branes, in which supersymmetry is broken spontaneously, despite having no scale at which sparticles appear and standard supersymmetry is restored. If the branes are placed on singularities at the tip of warped throats in Calabi-Yau orientifold flux compactifications, they may give rise to realistic particle spectra, closed-and open-string moduli stabilisation with a Minkowski/de Sitter uplift, and a geometrical origin for the scale hierarchies. The paper derives the lowenergy effective field theory description for such scenarios, i.e. a non-linear supergravity theory for standard and constrained supermultiplets, including soft supersymmetry-breaking matter couplings. The effect of closed-string moduli stabilisation on the open-string matter sector is worked out, incorporating nonperturbative and perturbative effects, and the mass and coupling hierarchies are computed with a view towards phenomenology.

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Section: Introductionmentioning

confidence: 99%

Non-supersymmetric String Models from Anti-D3-/D7-branes in Strongly Warped Throats

Parameswaran,

Tonioni

2020

Preprint

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show abstract

Non-supersymmetric string models from anti-D3-/D7-branes in strongly warped throats

Parameswaran

Tonioni

2020

J. High Energ. Phys.

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This article discusses model-building scenarios including anti-D3-/D7-branes, in which supersymmetry is broken spontaneously, despite having no scale at which sparticles appear and standard supersymmetry is restored. If the branes are placed on singularities at the tip of warped throats in Calabi-Yau orientifold flux compactifications, they may give rise to realistic particle spectra, closed- and open-string moduli stabilisation with a Minkowski/de Sitter uplift, and a geometrical origin for the scale hierarchies. The paper derives the low-energy effective field theory description for such scenarios, i.e. a non-linear supergravity theory for standard and constrained supermultiplets, including soft supersymmetry-breaking matter couplings. The effect of closed-string moduli stabilisation on the open-string matter sector is worked out, incorporating non-perturbative and perturbative effects, and the mass and coupling hierarchies are computed with a view towards phenomenology.

show abstract

Tadpole and Anomaly Cancellation Conditions in D-Brane Orbifold Models

Cited by 2 publications

References 33 publications

Non-supersymmetric String Models from Anti-D3-/D7-branes in Strongly Warped Throats

Non-supersymmetric String Models from Anti-D3-/D7-branes in Strongly Warped Throats

Non-supersymmetric string models from anti-D3-/D7-branes in strongly warped throats

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