S-Track stabilization of heterotic de Sitter vacua

Journal Article · Fri Jun 15 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.126003· OSTI ID:20933341

Curio, Gottfried; Krause, Axel ^[1]

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1. Arnold-Sommerfeld-Center for Theoretical Physics, Department fuer Physik, Ludwig-Maximilians-Universitaet Muenchen, Theresienstrasse 37, 80333 Munich (Germany)

We present a new mechanism, the S-Track, to stabilize the volume modulus S in heterotic M-theory flux compactifications along with the orbifold size T besides complex structure and vector bundle moduli stabilization. The key dynamical ingredient which makes the volume modulus stabilization possible, is M5 instantons arising from M5 branes wrapping the whole Calabi-Yau slice. These are natural in heterotic M theory where the warping shrinks the Calabi-Yau volume along S{sup 1}/Z{sub 2}. Combined with H flux, open M2 instantons, and hidden sector gaugino condensation it leads to a superpotential W which stabilizes S similar to a racetrack but without the need for multi-gaugino condensation. Moreover, W contains two competing nonperturbative effects which stabilize T. We analyze the potential and superpotentials to show that it leads to heterotic de Sitter vacua with broken supersymmetry through nonvanishing F terms.

• OSTI ID: 20933341
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 12 Vol. 75; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPACTIFICATION
DE SITTER GROUP
INSTANTONS
POTENTIALS
STABILIZATION
SUPERSYMMETRY
VECTORS