6533b826fe1ef96bd1285023
RESEARCH PRODUCT
Dispersive representation of the scalar and vector Kπ form factors for and decays
Diogo BoitoVéronique BernardEmilie Passemarsubject
PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physics0103 physical sciencesScalar (mathematics)High Energy Physics::Experiment010306 general physics01 natural sciencesAtomic and Molecular Physics and Opticsdescription
Recently, the τ → K π ν τ decay spectrum has been measured by the Belle and BaBar collaborations. In this work, we present an analysis of such decays introducing a dispersive parametrization for the vector and scalar Kπ form factors. This allows for precise tests of the Standard Model. For instance, the determination of f + ( 0 ) | V u s | from these decays is discussed. A comparison and a combination of these results with the analyses of the K l 3 decays is also considered.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-09-01 | Nuclear Physics B - Proceedings Supplements |