Dalitz plot analysis of $B_s^0 \rightarrow \overline{D}^0 K^- \pi^+$ decays

Abstract : The resonant substructure of $B_s^0 \rightarrow \overline{D}^0 K^- \pi^+$ decays is studied with the Dalitz plot analysis technique. The study is based on a data sample corresponding to an integrated luminosity of $3.0\,{\rm fb}^{-1}$ of $pp$ collision data recorded by LHCb. A structure at $m(\overline{D}^0 K^-) \approx 2.86 {\rm GeV}/c^2$ 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 $\overline{D}^0 K^-$ and $K^-\pi^+$ components included in the amplitude model. In addition, the $D^*_{s2}(2573)^-$ resonance is confirmed to be spin-2.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-01053217
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Submitted on : Wednesday, July 30, 2014 - 8:41:00 AM
Last modification on : Thursday, December 16, 2021 - 2:11:15 PM

Citation

R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Ziad Ajaltouni, et al.. Dalitz plot analysis of $B_s^0 \rightarrow \overline{D}^0 K^- \pi^+$ decays. Physical Review D, American Physical Society, 2014, 90 (7), pp.072003. ⟨10.1103/PhysRevD.90.072003⟩. ⟨in2p3-01053217⟩

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