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20022011
most citedHeavy quarkonium: progress, puzzles, and opportunities

1.8k citations

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11 papers · 1 filter

hep-th200913 cited

Enhanced Symmetries of Orbifolds from Moduli Stabilization

Wilfried Buchmuller, Riccardo Catena, Kai Schmidt-Hoberg

We study a supersymmetric field theory in six dimensions compactified on the orbifold T^2/Z_2 with two Wilson lines. After supersymmetry breaking, the Casimir energy fixes the shap…

hep-th200878 cited

Large hierarchies from approximate R symmetries

Rolf Kappl, Hans Peter Nilles, Saul Ramos-Sanchez +3

We show that hierarchically small vacuum expectation values of the superpotential in supersymmetric theories can be a consequence of an approximate R symmetry. We briefly discuss t…

hep-th200838 cited

Constructing de Sitter vacua in no-scale string models without uplifting

Laura Covi, Marta Gomez-Reino, Christian Gross +2

We develop a method for constructing metastable de Sitter vacua in N=1 supergravity models describing the no-scale volume moduli sector of Calabi-Yau string compactifications. We c…

hep-th200823 cited

Higgs versus Matter in the Heterotic Landscape

Wilfried Buchmuller, Jonas Schmidt

In supersymmetric extensions of the standard model there is no basic difference between Higgs and matter fields, which leads to the well known problem of potentially large baryon a…

hep-th200719 cited

Tensor calculus for supergravity on a manifold with boundary

Dmitry V. Belyaev, Peter van Nieuwenhuizen

Using the simple setting of 3D N=1 supergravity, we show how the tensor calculus of supergravity can be extended to manifolds with boundary. We present an extension of the standard…

hep-th2007

Gauge-Higgs Unification from the Heterotic String

Jonas Schmidt

We present a 6D orbifold model on which emerges as intermediate step in the compactification of the heterotic string to the supersymmetric standard model in four dimensio…