Flux-induced SUSY-breaking soft terms on D7–D3 brane systems

By P. G. Cámara, Luis E Ibáñez, A. Uranga. 2004

221 citations recorded by the source corpus.

Abstract We study the effect of RR and NSNS 3-form fluxes on the effective action of the world-volume fields of Type IIB D7/D3 brane configurations. The D7-branes wrap 4-cycles Σ 4 on a local Calabi–Yau geometry. This is an extension of previous work on hep-th/0311241 , where a similar analysis was applied to the case of D3-branes. Our present analysis is based on the D7- and D3-brane Dirac–Born–Infeld and Chern–Simons actions, and makes full use of the R-symmetries of the system, which allow us to compute explicitly results for the fields lying at the D3–D7 intersections. A number of interesting new properties appear as compared to the simpler case of configurations with only D3-branes. As a general result one finds that fluxes stabilize some or all of the D7-brane moduli. We argue that this is important for the problem of stabilizing Kahler moduli through non-perturbative effects in KKLT-like vacua. We also show that ( 0 , 3 ) imaginary self-dual fluxes, which lead to compactifications with zero vacuum energy, give rise to SUSY-breaking soft terms including gaugino and scalar masses, and trilinear terms. Particular examples of chiral MSSM-like models of this class of vacua, based on D3–D7 brane systems at orbifold singularities are presented.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/248fa3ad472b9786b378b12dd98210d5e8c0a6e8

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Citations in the corpus

TOWARD REALISTIC INTERSECTING D-BRANE MODELS (2005, methodology): “Interestingly, the supersymmetric (2, 1)-components of G3 fluxes can induce superpotential mass terms for the D7-brane moduli, including those associated with D7-brane “intersections” [153], thus providing a stabilization mechanism for them.”
Large-volume flux compactifications: Moduli spectrum and D3/D7 soft supersymmetry breaking (2005, background): “There have been several important attempts at computing soft supersymmetry breaking terms from flux compactifications in type IIB string theory [4, 5 , 6, 7]. However, not all geometric moduli are fixed by the fluxes.”
Flux compactifications in string theory: A Comprehensive review (2005, background): “We refer the reader to some of the original references [35, 160, 33].”
On Inflation in String Theory (2003, background): “New ideas of particle phenomenology in the context of supergravity and moduli stabilization were developed in [45, 46, 47, 48, 49, 3, 50, 51, 52], leading to a set of new predictions for the spectrum of particles to be detected in the future.”
Gaugino Condensates and D-terms from D7-branes (2006, background): “operly would require to consider open string 1-loop corrections in order to get holomorphic gauge kinetic functions [57].18 We thus assume that these moduli can be ﬁxed, e.g. by the presence of ﬂuxes [60, 61, 62]. Now we have all the ingredients to rewrite the potential arising from (2.35) in a more”
D3-brane potentials from fluxes in AdS/CFT (2010, methodology): “Again this is supported by the fact that (3, 0) flux creates a mass term for the gaugino [26, 45].”
Building MSSM flux vacua (2004, background): “In theN = 0 models, the background fluxes which stabilise the moduli also induce soft supersymmetry breaking terms in the gauge and chiral sectors of the theory, while satisfying the equation of motion.”