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 Title: Cascading to the MSSM Author: Heckman, Jonathan; Verlinde, Herman; Wijnholt, Martijn; Vafa, C. Note: Order does not necessarily reflect citation order of authors. Citation: Heckman, Jonathan, Cumrun Vafa, Herman Verlinde, and Martijn Wijnholt. 2008. Cascading to the MSSM. Journal of Higher Energy Physics 2008(06): 016. Full Text & Related Files: 0711.0387v1.pdf (793.5Kb; PDF) Abstract: The MSSM can arise as an orientifold of a pyramid-like quiver in the context of intersecting D-branes. Here we consider quiver realizations of the MSSM which can emerge at the bottom of a duality cascade. We classify all possible minimal ways this can be done by allowing only one extra node. It turns out that this requires extending the geometry of the pyramid to an octahedron. The MSSM at the bottom of the cascade arises in one of two possible ways, with the extra node disappearing either via Higgsing or confinement. Remarkably, the quiver of the Higgsing scenario turns out to be nothing but the quiver version of the left-right symmetric extension of the MSSM. In the minimal confining scenario the duality cascade can proceed if and only if there is exactly one up/down Higgs pair. Moreover, the symmetries of the octahedron naturally admit an automorphism of the quiver which solves a version of the $$\mu$$ problem precisely when there are an odd number of generations. Published Version: doi:10.1088/1126-6708/2008/06/016 Other Sources: http://arxiv.org/abs/0711.0387 Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:7473200

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• FAS Scholarly Articles [7220]
Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University