The String CP Problem

Details The String CP Problem The String CP Problem

2001-12-19

arxiv.org/abs/hep-ph/0112260v2

Phys.Rev.Lett.89:121601,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex, 4 pages, FCNC discussion added, to appear in Phys Rev Lett (title changed in journal)

Scientific paper

10.1103/PhysRevLett.89.121601

We show that string models with low energy supersymmetry which accommodate the fermion mass hierarchy generally give non-universal soft trilinear couplings (A-terms). In conjunction with the apparently large Cabibbo-Kobayashi-Maskawa (CKM) phase, this results in large fermion EDMs even in the absence of CP violating phases in the supersymmetry breaking terms and the mu-term. Nonobservation of the EDMs therefore implies that strings select special flavor and/or supersymmetry breaking patterns.

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