Abstract
An analysis of \({B^\pm \to \pi^\pm \pi^\mp \pi^\pm}\) decay data in a quasi two-body B ± → π ± [π + π −] S, P, D QCD factorization framework is performed. The short distance amplitudes are calculated including next-to-leading order in α s vertex and penguin corrections. The long distance amplitudes due to the [π + π −] S, P, D final state interactions are described by the pion non-strange scalar and vector form factors for the [π + π −] S S-wave state and [π + π −] P P-wave state, respectively and by a relativistic Breit–Wigner formula for the[π + π −] D D-wave state. We achieve a good fit of the data with only three parameters for the S wave, one for the P wave and one for the D wave. Our model gives a unified unitary description of the three scalar resonances, f 0(600), f 0(980) and f 0(1400) in terms of the pion scalar form factor. We predict for the B to f 2(1270) transition form factor, \({F^{Bf_2}(m_\pi^2)=0.098\pm0.007}\) .
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This work was partially supported by the IN2P3-Polish Laboratories Conventions (project No 08-127).
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Loiseau, B., Dedonder, JP., Furman, A. et al. CP Violation and Strong Pion-Pion Interactions in the Weak \({B^\pm \to \pi^\pm \pi^\mp \pi^\pm}\) Decays. Few-Body Syst 54, 399–403 (2013). https://doi.org/10.1007/s00601-012-0399-x
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DOI: https://doi.org/10.1007/s00601-012-0399-x