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.93.052018Abstract
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.