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Dalitz plot analysis of B0s→D¯0K−π+ decays
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LHCb Collaboration (Including: Back, J. J., Blake, Thomas, Craik, Daniel, Dossett, D., Gershon, T. J., Kreps, Michal, Langenbruch, Christoph, Latham, Thomas, O'Hanlon, Daniel P., Pilar, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., Wallace, Charlotte and Whitehead, M. (Mark)). (2014) Dalitz plot analysis of B0s→D¯0K−π+ decays. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 90 (Number 7). Article number 072003. doi:10.1103/PhysRevD.90.072003 ISSN 1550-7998.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.90.072003
Abstract
The resonant substructure of B0s→D¯0K−π+ decays is studied with the Dalitz plot analysis technique. The study is based on a data sample corresponding to an integrated luminosity of 3.0 fb−1 of pp collision data recorded by LHCb. A structure at m(D¯0K−)≈2.86 GeV/c2 is found to be an admixture of spin-1 and spin-3 resonances. The masses and widths of these states and of the D∗s2(2573)− meson are measured, as are the complex amplitudes and fit fractions for all the D¯0K− and K−π+ components included in the amplitude model. In addition, the D∗s2(2573)− resonance is confirmed to be spin 2.
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