%0 Journal Article
%T Role of f0(980) and a0(980) in the B- → π-K+K- and B- → π-K0Kbar0 reactions
%A Abreu, L. M.
%A Ikeno, N.
%A Oset, E.
%J Physical Review D
%D 2023
%V 108
%N 1
%I Amer Physical Soc
%@ 2470-0010
%G English
%F Abreu_etal2023
%O WOS:001063954200002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5827), last updated on Mon, 11 Dec 2023 10:16:21 +0000
%X In this work we study the role of the f(0)(980) and a(0)(980) resonances in the low K+K- and K-0(K) over bar (0) invariant-mass region of the B- -> pi-K+K- and B- -> pi K--(0)(K) over bar (0) reactions. The amplitudes are calculated by using the chiral unitary SU(3) formalism, in which these two resonances are dynamically generated from the unitary pseudoscalar-pseudoscalar coupled-channel approach. The amplitudes are then used as input in the evaluation of the mass distributions with respect to the K+K- and K-0(K) over bar (0) invariant masses, where the contributions coming from the I = 0 and I = 1 components are explicitly assessed. Furthermore, the contribution of the K*(892)K-0(-) production and its influence on the pi K--(+) and K+K- systems are also evaluated, showing that there is no significant strength for small K+K- invariant mass. Finally, the final distributions of M-inv(2) ((KK -/+)-K-+/-) for the B--/+ -> pi(KK -/+)-K--/+-K-+/- reactions are estimated and compared with the LHCb data. Our results indicate that the I = 0 component tied to the f(0)(980) excitation generates the dominant contribution in the range of low K+K- invariant mass.
%R 10.1103/PhysRevD.108.016007
%U https://arxiv.org/abs/2305.02848
%U https://doi.org/10.1103/PhysRevD.108.016007
%P 016007-9pp