TY  - JOUR
AU  - Abreu, L. M.
AU  - Ikeno, N.
AU  - Oset, E.
PY  - 2023
DA  - 2023//
TI  - Role of f0(980) and a0(980) in the B- → π-K+K- and B- → π-K0Kbar0 reactions
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 016007
EP  - 9pp
VL  - 108
IS  - 1
PB  - Amer Physical Soc
AB  - 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.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2305.02848
UR  - https://doi.org/10.1103/PhysRevD.108.016007
DO  - 10.1103/PhysRevD.108.016007
LA  - English
N1  - WOS:001063954200002
ID  - Abreu_etal2023
ER  -