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Título: | tau(-) -> nu tau M1 M2, with M1, M2 pseudoscalar or vector mesons |
Autor: | Dai, L.R.; Pavao, R.P.; Sakai, Shuntaro; Oset, Eulogi CSIC ORCID | Fecha de publicación: | feb-2019 | Editor: | Springer Nature | Citación: | European Physical Journal A 55 (2): 20 (2019) | Resumen: | We perform a calculation of the -M1M2, with M1,M2 either pseudoscalar or vector mesons using the basic weak interaction and angular momentum algebra to relate the different processes. The formalism also leads to a different interpretation of the role played by G-parity in these decays. We also observe that, while PPp-wave production is compatible with chiral perturbation theory and experiment, VP and VVp-wave production is clearly incompatible with experiment and we develop the formalism also in this case, producing the VP or VV pairs in s-wave. We compare our results with experiment and other theoretical approaches for rates and invariant mass distributions and make predictions for unmeasured decays. We show the value of these reactions, particularly if the M1M2 mass distribution is measured, as a tool to learn about the meson-meson interaction and the nature of some resonances, coupling to two mesons, which are produced in such decays. | Versión del editor: | http://dx.doi.org/10.1140/epja/i2019-12690-9 | URI: | http://hdl.handle.net/10261/208567 | DOI: | 10.1140/epja/i2019-12690-9 | Identificadores: | doi: 10.1140/epja/i2019-12690-9 issn: 1434-601X |
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