First hint of nonstandardviolation fromdecay
- 30 October 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 66 (7) , 071502
- https://doi.org/10.1103/physrevd.66.071502
Abstract
We comment on the implications of the recently measured asymmetry in decay. The data disfavor the standard model at and, if the trend persists in the future with higher statistics, require the existence of violation beyond that in the CKM matrix. In particular, the decay amplitude would require new contributions of comparable size to the standard model ones with an order one phase. While not every model can deliver such a large amount of and flavor violation, those with substantial FCNC couplings to the Z can reproduce the experimental findings.
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This publication has 29 references indexed in Scilit:
- Observation of LargeViolation in the NeutralMeson SystemPhysical Review Letters, 2001
- Observation ofViolation in theMeson SystemPhysical Review Letters, 2001
- Exploring new physics in the B→φK systemPhysics Letters B, 2001
- General analysis of new physics in B→J/ψKPhysics Letters B, 2001
- asymmetry inStandard model pollutionPhysical Review D, 1998
- Measuring the CP angle β in hadronic b → s penguin decaysPhysics Letters B, 1997
- CP Violation and the Role of Electroweak Penguins in Nonleptonic B DecaysInternational Journal of Modern Physics A, 1997
- CP asymmetries in B decays with new physics in decay amplitudesPhysics Letters B, 1997
- CP-Violation in the Renormalizable Theory of Weak InteractionProgress of Theoretical Physics, 1973
- Unitary Symmetry and Leptonic DecaysPhysical Review Letters, 1963