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arXiv · 0711.4421

Sequestering CP Violation and GIM-Violation with Warped Extra Dimensions

Clifford Cheung·A. Liam Fitzpatrick·Lisa Randall
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Abstract

We propose a model of spontaneous CP violation to address the strong CP problem in warped extra dimensions that relies on sequestering flavor and CP violation. We assume that brane-localized Higgs Yukawa interactions respect a U(3) flavor symmetry that is broken only by bulk fermion mass and Yukawa terms. All CP violation arises from the vev of a CP-odd scalar field localized in the bulk. To suppress radiative corrections to theta-bar, the doublet quarks in this model are localized on the IR brane. We calculate constraints from flavor-changing neutral currents (FCNCs), precision electroweak measurements, CKM unitarity, and the electric dipole moments in this model and predict theta-bar to be at least about 10^-12.

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Clifford Cheung, A. Liam Fitzpatrick, Lisa Randall. 2007-11-28. Sequestering CP Violation and GIM-Violation with Warped Extra Dimensions. https://doi.org/10.1088/1126-6708%2F2008%2F01%2F069

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