Natural CP Violation Criteria for the Minimal Supersymmetric Standard Model

Preprint

28 January 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9306318

Abstract

$CP$ violating effects in the Minimal Supersymmetric Standard Model (MSSM) can lead to excessively large contributions to the neutron EDM (\dn). We write criteria which ensure that the low energy supergravity (SUGRA) parametrization of the MSSM does not require fine-tunings or large mass scales to evade the constraint from \dn, and consider the implications on SUGRA theories. In particular, we show that in the Polonyi model, two of the mass scales are in general complex, meaning that model does not naturally avoid a large \dn\ as is sometimes claimed.

Keywords

MINIMAL SUPERSYMMETRIC STANDARD
SUPERSYMMETRIC STANDARD MODEL
CP VIOLATION
NATURAL CP
EDM

All Related Versions

Version 1, 1993-06-26, ArXiv
Version 2, 1994-01-28, ArXiv
Published version: Nuclear Physics B, 419 (2), 279.

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