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Publication - Dr Patricia Magalhaes

    Dalitz plot analysis of the D + → K K + K + decay


    , Adinolfi, M, Alexander, M, Alves, AA, Andrews, JE, Baker, S, Barlow, RJ, Benson, S, Bhasin, S, Blake, T, Buchanan, E, Burr, C, Cai, H, Chapman, MG, Chen, C, Chen, S, Clarke, PE, Cogan, J, Collins, P, Coombs, G, Dalseno, J, Davis, A, De Paula, L, Delaney, B, Douglas, L, Evans, T, Frank, M, Fu, J, Gao, Y, Gibson, V, Han, X, Harnew, ST, Harrison, T, He, J, Hecker, M, Henry, L, Hill, D, Hu, J, Hu, W, Huang, W & others 2019, ‘Dalitz plot analysis of the D + → K K + K + decay’. Journal of High Energy Physics, vol 2019.


    The resonant structure of the doubly Cabibbo-suppressed decay D + →K K + K + is studied for the first time. The measurement is based on a sample of pp-collision data, collected at a centre-of-mass energy of 8 TeV with the LHCb detector and corresponding to an integrated luminosity of 2 fb −1 . The amplitude analysis of this decay is performed with the isobar model and a phenomenological model based on an effective chiral Lagrangian. In both models the S-wave component in the K K + system is dominant, with a small contribution of the ϕ(1020) meson and a negligible contribution from tensor resonances. The K + K scattering amplitudes for the considered combinations of spin (0,1) and isospin (0,1) of the two-body system are obtained from the Dalitz plot fit with the phenomenological decay amplitude.[Figure not available: see fulltext.].

    Full details in the University publications repository