Abstract
We present an assessment of the standard model expectations for the branching ratio of the isotopic spin and G-parity violating decay . This estimate is based on a vector and scalar meson dominance parametrization of the relevant form factors, that explicitly accounts for mixing. The numerical results obtained in this framework indicate a branching ratio 1 order of magnitude (or more) below the current experimental limit and suggest the possibility of evidencing some novel interaction in high statistics studies of this decay.
- Received 3 June 2011
DOI:https://doi.org/10.1103/PhysRevD.84.017302
© 2011 American Physical Society