Kπ form factors, final state interactions and D+ -> π+π+ decays
We present a model for the decay D+ → K-π+π+. The weak interaction part of this reaction is described using the effective weak Hamiltonian in the factorisation approach. Hadronic final state interactions are taken into account through the Kπ scalar and vector form factors fulfilling analyticity, uni...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2010 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:275035 |
| Acceso en línea: | https://ddd.uab.cat/record/275035 https://dx.doi.org/urn:doi:10.1063/1.3483352 |
| Access Level: | acceso abierto |
| Palabra clave: | D-decays K π form factors Final state interactions |
| Sumario: | We present a model for the decay D+ → K-π+π+. The weak interaction part of this reaction is described using the effective weak Hamiltonian in the factorisation approach. Hadronic final state interactions are taken into account through the Kπ scalar and vector form factors fulfilling analyticity, unitarity and chiral symmetry constraints. Allowing for a global phase difference between the S and P waves of -65◦, the Dalitz plot of the D+ → K-π+π+ decay, the Kπ invariant mass spectra and the total branching ratio due to S-wave interactions are well reproduced. |
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