https://doi.org/10.1140/epjc/s10052-020-08748-4
Regular Article - Theoretical Physics
A theoretical analysis of the semileptonic decays
and
1
Grup de Física Teòrica, Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
2
Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193, Barcelona, Spain
Received:
29
July
2020
Accepted:
10
December
2020
Published online:
24
December
2020
A complete theoretical analysis of the C- conserving semileptonic decays and
(
or
) is carried out within the framework of the Vector Meson Dominance (VMD) model. An existing phenomenological model is used to parametrise the VMD coupling constants and the associated numerical values are obtained from an optimisation fit to
and
radiative decays (
,
,
and
,
,
). The decay widths and dilepton energy spectra for the two
processes obtained using this approach are compared and found to be in good agreement with other results available in the published literature. Theoretical predictions for the four
and
decay widths and dilepton energy spectra are calculated and presented for the first time in this work.
The original online version of this article was revised: the authors were only affiliated to one affiliation in the published version. They are however affiliated to both affiliations.
An erratum to this article is available online at https://doi.org/10.1140/epjc/s10052-021-08864-9.
An erratum to this article is available online at https://doi.org/10.1140/epjc/s10052-022-10717-y.
Copyright comment corrected publication 2021
© The Author(s) 2020. corrected publication 2021
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