The Standard Model quiver in de Sitter string compactifications

M. Cicoli, I. García Etxebarria, F. Quevedo, A. Schachner, P. Shukla, R. Valandro

OAI: oai:www.repository.cam.ac.uk:1810/327309 • DOI: 10.17863/CAM.74758

Abstract: We argue that the Standard Model quiver can be embedded into compact Calabi-Yau geometries through orientifolded D3-branes at del Pezzo singularities dPn with n ≥ 5 in a framework including moduli stabilisation. To illustrate our approach, we explicitly construct a local dP5 model via a combination of Higgsing and orientifolding. This procedure reduces the original dP5 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 Kähler moduli, and the MSSM as the low energy spectrum. We further discuss phenomenological and cosmological implications of this construction.

Regular Article - Theoretical Physics D-Branes Flux compactifications Superstring Vacua