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

Parameswaran, Susha and Tonioni, Flavio ORCID: 0000-0001-9683-0698 (2020) Non-supersymmetric string models from anti-D3-/D7-branes in strongly warped throats. JOURNAL OF HIGH ENERGY PHYSICS, 2020 (12). 174-.

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Official URL: http://dx.doi.org/10.1007/JHEP12(2020)174

Abstract

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.

Item Type:	Article
Additional Information:	72 pages + 3 appendices + references, 3 figures; v2: JHEP version, references and clarifications added, typos corrected; v3: corrections in app. B.3 and sssec. 4.3.2 (with corresponding edits, main conclusions unchanged), clarification in sssec. 5.1.1
Uncontrolled Keywords:	D-branes, Flux compactifications, Supergravity Models, Supersymmetry Breaking
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	07 Sep 2021 15:08
Last Modified:	15 Mar 2024 09:04
DOI:	10.1007/JHEP12(2020)174
Open Access URL:	https://link.springer.com/article/10.1007%2FJHEP12...
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3136240