Exclusive Production of the X(3872) in B Meson Decay

Abstract

If the recently-discovered charmonium-like state X(3872) is a loosely-bound S-wave molecule of the charm mesons D^0 \bar D^{*0} or D^{*0} \bar D^0, it can be produced through the weak decay of the B meson into D^0 \bar D^{*0} K or D^{*0} \bar D^0 K followed by the coalescence of the charm mesons at a long-distance scale set by the scattering length of the charm mesons. The long-distance factors in the amplitude for the decay B \to XK are determined by the binding energy of X, while the short-distance factors are essentially determined by the amplitudes for B \to D^0 \bar D^{*0} K and B \to D^{*0} \bar D^0 K near the thresholds for the charm mesons. We obtain a crude determination of the short-distance amplitudes by analyzing data from the Babar collaboration on the branching fractions for B\to \bar D^{(*)} D^{(*)} K using a factorization assumption, heavy quark symmetry, and isospin symmetry. The resulting order-of-magnitude estimate of the branching fraction for B^+ \to X K^+ is compatible with observations provided that J/ψπ^+ π^- is a major decay mode of the X. The branching fraction for B^0 \to X K^0 is predicted to be suppressed by more than an order of magnitude compared to that for B^+ \to X K^+.

20 pages, 4 figures, revtex4, to appear in Phys. Rev. D

References in corpus (5)

• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• Is X(3872) a possible candidate of hybrid meson
• Heavy quark spin selection rule and the properties of the X(3872)
• Angular distributions in $J/\psi (\rho ,\omega )$ states near threshold
• The X(3872) and the 3941 MeV peak in omega+J/Psi

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• Higher Charmonia and X,Y,Z states with Screened Potential
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Pion Interactions in the X(3872)
• Is X(3872) {\sl Really} a Molecular State?
• The Possible Interpretations of Y(4260)
• X(3872): Hadronic Molecules in Effective Field Theory
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• Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
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• The Effects of Charged Charm Mesons on the Line Shapes of the X(3872)
• Ambiversion of X(3872)
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• Production of X(3872) at PANDA
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