Large {delta}I =(3/2) Contribution to {epsilon}{sup '}/{epsilon} in Supersymmetry
Journal Article
·
· Physical Review Letters
We show that in supersymmetric extensions of the standard model gluino box diagrams can yield a large CP -violating {delta}I=(3/ 2) contribution to s{yields}dq(bar sign)q flavor-changing neutral current processes, which feeds into the I=2 isospin amplitude in K{yields}{pi}{pi} decays. This contribution requires only moderate mass splitting between the right-handed squarks u(tilde sign){sub R} and d(tilde sign){sub R} , and persists for squark masses of order 1 TeV. Taking into account current bounds from K-K(bar sign) mixing, the resulting contribution to {epsilon}{sup '}/{epsilon} could naturally be an order of magnitude larger than the measured value. (c) 1999 The American Physical Society.
- OSTI ID:
- 20217836
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 83; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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