Amplitude analysis of B[superscript 0] → [bar over D][superscript 0]K[superscript +]π[superscript -] decays
Name
PhysRevD.92.012012.pdf
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Author(s)
Aaij, R.
Adeva, B.
Adinolfi, M.
Affolder, A.
Ajaltouni, Z.
Akar, S.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Date Issued
July 2015
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaij, R., et al. "Amplitude analysis of B[superscript 0] → [bar over D][superscript 0]K[superscript +]π[superscript -] decays." Phys. Rev. D 92, 012012 (July 2015). © 2015 CERN, for the LHCb Collaboration
Version
Final published version
Abstract
The Dalitz plot distribution of B[superscript 0] → [bar over D][superscript 0]K[superscript +]π[superscript -] decays is studied using a data sample corresponding to 3.0 fb[superscript -1] of pp collision data recorded by the LHCb experiment during 2011 and 2012. The data are described by an amplitude model that contains contributions from intermediate K[superscript *](892)[superscript 0], K[superscript *](1410)[superscript 0], K[* over 2](1430)[superscript 0] and D[* over 2](2460)[superscript -] resonances. The model also contains components to describe broad structures, including the K[* over 0](1430)[superscript 0] and D[* over 0](2400)[superscript -] resonances, in the Kπ S-wave and the Dπ S- and P-waves. The masses and widths of the D[* over 0](2400)[superscript -] and D[* over 0](2460)[superscript -] resonances are measured, as are the complex amplitudes and fit fractions for all components included in the amplitude model. The model obtained will be an integral part of a future determination of the angle γ of the Cabibbo-Kobayashi-Maskawa quark mixing matrix using B[superscript 0] → DK[superscript +]π[superscript -] decays.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevD.92.012012
