TY  - JOUR
AU  - Roca, L.
AU  - Oset, E.
PY  - 2021
DA  - 2021//
TI  - Scalar resonances in the D+ -> K-K+K+ decay
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 034020
EP  - 9pp
VL  - 103
IS  - 3
PB  - Amer Physical Soc
AB  - 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 resonances1 f(0)(980) and a(0)(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 a(0)(980) contribution close to the threshold of the K-K+ spectrum.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2011.05185
UR  - https://doi.org/10.1103/PhysRevD.103.034020
DO  - 10.1103/PhysRevD.103.034020
LA  - English
N1  - WOS:000621332000004
ID  - Roca+Oset2021
ER  -