The Standard Model quiver in de Sitter string compactifications

We argue that the Standard Model quiver can be embedded into compact Calabi-Yau geometries through orientifolded D3-branes at del Pezzo singularities dP(n) with n >= 5 in a framework including moduli stabilisation. To illustrate our approach, we explicitly construct a local dP(5) model via a combination of Higgsing and orientifolding. This procedure reduces the original dP(5) quiver gauge theory to the Left-Right symmetric model with three families of quarks and leptons as well as a Higgs sector to further break the symmetries to the Standard Model gauge group. We embed this local model in a globally consistent Calabi-Yau flux compactification with tadpole and Freed-Witten anomaly cancellations. The model features closed string moduli stabilisation with a de Sitter minimum from T-branes, supersymmetry broken by the Kahler moduli, and the MSSM as the low energy spectrum. We further discuss phenomenological and cosmological implications of this construction.

Automated summary

A new method of embedding the Standard Model quiver into compact Calabi-Yau geometries has been proposed, illustrated by constructing a single dP(5) model. This procedure simplifies the original dP(5) quiver gauge theory to a Left-Right symmetric model, with the potential to further break symmetries to the Standard Model gauge group.