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Studies of the resonance structure in D0 → KS0 K±π± decays

  • Author(s): Aaij, R;
  • Adeva, B;
  • Adinolfi, M;
  • Affolder, A;
  • Ajaltouni, Z;
  • Akar, S;
  • Albrecht, J;
  • Alessio, F;
  • Alexander, M;
  • Ali, S;
  • Alkhazov, G;
  • Alvarez Cartelle, P;
  • Alves, AA;
  • Amato, S;
  • Amerio, S;
  • Amhis, Y;
  • An, L;
  • Anderlini, L;
  • Anderson, J;
  • Andreassi, G;
  • Andreotti, M;
  • Andrews, JE;
  • Appleby, RB;
  • Aquines Gutierrez, O;
  • Archilli, F;
  • D'Argent, P;
  • Artamonov, A;
  • Artuso, M;
  • Aslanides, E;
  • Auriemma, G;
  • Baalouch, M;
  • Bachmann, S;
  • Back, JJ;
  • Badalov, A;
  • Baesso, C;
  • Baldini, W;
  • Barlow, RJ;
  • Barschel, C;
  • Barsuk, S;
  • Barter, W;
  • Batozskaya, V;
  • Battista, V;
  • Bay, A;
  • Beaucourt, L;
  • Beddow, J;
  • Bedeschi, F;
  • Bediaga, I;
  • Bel, LJ;
  • Bellee, V;
  • Belyaev, I;
  • Ben-Haim, E;
  • Bencivenni, G;
  • Benson, S;
  • Benton, J;
  • Berezhnoy, A;
  • Bernet, R;
  • Bertolin, A;
  • Bettler, MO;
  • Van Beuzekom, M;
  • Bien, A;
  • Bifani, S;
  • Bird, T;
  • Birnkraut, A;
  • Bizzeti, A;
  • Blake, T;
  • Blanc, F;
  • Blouw, J;
  • Blusk, S;
  • Bocci, V;
  • Bondar, A;
  • Bondar, N;
  • Bonivento, W;
  • Borghi, S;
  • Borsato, M;
  • Bowcock, TJV;
  • Bowen, E;
  • Bozzi, C;
  • Braun, S;
  • Brett, D;
  • Britsch, M;
  • Britton, T;
  • Brodzicka, J;
  • Brook, NH;
  • Buchanan, E;
  • Bursche, A;
  • Buytaert, J;
  • Cadeddu, S;
  • Calabrese, R;
  • Calvi, M;
  • Calvo Gomez, M;
  • Campana, P;
  • Campora Perez, D;
  • Capriotti, L;
  • Carbone, A;
  • Carboni, G;
  • Cardinale, R;
  • Cardini, A;
  • Carniti, P;
  • Carson, L;
  • Carvalho Akiba, K
  • et al.

Published Web Location

http://doi.org/10.1103/PhysRevD.93.052018
No data is associated with this publication.
Abstract

Amplitude models are applied to studies of resonance structure in D0→KS0K-π+ and D0→KS0K+π- decays using pp collision data corresponding to an integrated luminosity of 3.0 fb-1 collected by the LHCb experiment. Relative magnitude and phase information is determined, and coherence factors and related observables are computed for both the whole phase space and a restricted region of 100 MeV/c2 around the K∗(892)± resonance. Two formulations for the Kπ S-wave are used, both of which give a good description of the data. The ratio of branching fractions B(D0→KS0K+π-)/B(D0→KS0K-π+) is measured to be 0.655±0.004(stat)±0.006(syst) over the full phase space and 0.370±0.003(stat)±0.012(syst) in the restricted region. A search for CP violation is performed using the amplitude models and no significant effect is found. Predictions from SU(3) flavor symmetry for K∗(892)K amplitudes of different charges are compared with the amplitude model results.

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