Publication: Scalar resonances in the D+ → K−K+K+ decay
Authors
Roca Zamora, Luis ; Oset, E.
item.page.secondaryauthor
item.page.director
Publisher
American Physical Society
publication.page.editor
publication.page.department
DOI
https://doi.org/10.1103/PhysRevD.103.034020
item.page.type
info:eu-repo/semantics/article
Description
© 2021, American Physical Society. This document is the Published version of a Published Work that appeared in final form in Physical Review D. To access the final edited and published work see https://doi.org/10.1103/PhysRevD.103.034020
Abstract
We study theoretically the resonant structure of the double Cabibbo suppressed 𝐷+ →𝐾−𝐾+𝐾+ decay. We start from an elementary production diagram, considered subleading in previous approaches, which cannot produce a final 𝐾−𝐾+ pair at the tree level but which we show to be able to provide the strength of the decay through final meson-meson state interaction. The different meson-meson elementary productions are related through SU(3), and the final rescattering is implemented from a suitable implementation of unitary extensions of chiral perturbation theory, which generate dynamically the scalar resonances 𝑓0(980) and 𝑎0(980). We obtain a good agreement with recent experimental data from the LHCb Collaboration with a minimal freedom in the fit and show the dominance of the 𝑎0(980) contribution close to the threshold of the 𝐾−𝐾+ spectrum.
publication.page.subject
Citation
Phys. Rev. D 103, 034020 (2021)
item.page.embargo
1-ene-2999
Collections
Ir a Estadísticas
Sin licencia Creative Commons.