Production of the X(3870) at the Upsilon(4S) by the Coalescence of Charm Mesons

Abstract

If the recently-discovered charmonium state X(3870) is a loosely-bound molecule of the charm mesons D^0 and \bar D^{*0} or \bar D^0 and D^{*0}, it can be produced in e^+ e^- annihilation at the Υ(4S) resonance by the coalescence of charm mesons produced in the decays of B^+ and B^- mesons. Remarkably, in the case of 2-body decays of the B mesons, the leading contribution to the coalescence probability depends only on hadron masses and on the width and branching fractions of the B meson. As the binding energy E_b of the molecule goes to zero, the coalescence probability scales as E_b^{1/2} log(E_b). Unfortunately, the coalescence probability is also suppressed by two powers of the ratio of the width to the mass of the B meson, and is therefore many orders of magnitude too small to be observed in current experiments at the B factories.

10 pages, revtex4, 1 figure

References in corpus (10)

• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• The D*0 D0bar threshold resonance
• Charmonium Options for the X(3872)
• Charmonium levels near threshold and the narrow state $X(3872) \to π^{+}π^{-}\jpsi$
• Low-energy Universality and the New Charmonium Resonance at 3870 MeV
• Interference and binding effects in decays of possible molecular component of X(3872)
• Molecular States of Heavy Quark Mesons
• On the hidden charm state at 3872 MeV
• The upper limit of the e+e- partial width of X(3872)

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• QCD and strongly coupled gauge theories: challenges and perspectives
• Nuclear effective field theory: status and perspectives
• Observation of a near-threshold omega-J/psi mass enhancement in exclusive B-->K omega J/psi decays
• Observation of a charged (DD*bar)- mass peak in e+e- --> pi+ (DD*bar)- at Ecm=4.26 GeV
• Pion Interactions in the X(3872)
• Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decays
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• A New Hadron Spectroscopy
• Heavy quark spin selection rule and the properties of the X(3872)
• Exclusive Production of the X(3872) in B Meson Decay
• Production of the X(3872) in B Meson Decay by the Coalescence of Charm Mesons
• Factorization in the Production and Decay of the X(3872)
• On the scattering of D and D* mesons off the X(3872)
• A Phenomenological analysis on isospin-violating decay of $X(3872)$
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• AdS-QCD quark-antiquark potential, meson spectrum and tetraquarks
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• Operator Product Expansion in the Production and Decay of the X(3872)
• Inclusive Production of the X(3872)
• $D^{\pm }{D}^{\ast \mp }$ Hadronic Atom as a Key to Revealing the $X(3872)$ Mystery
• Search for X(3872) in gamma gamma Fusion and ISR at CLEO
• Strategies for an accurate determination of the X(3872) energy from QCD lattice simulations
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• Lowest-lying Tetra-Quark Hadrons in Anisotropic Lattice QCD
• Search for the decay $D_s^{+}\to \omega e^{+}\nu$
• Dipion invariant mass spectrum in $X(3872)\to J/\psi \pi \pi$
• Search for X(3872) in gamma gamma Fusion and ISR at CLEO
• New Particles from Belle
• Schottky Anomaly and Hadronic Spectrum
• On the origin of the narrow peak and the isospin symmetry breaking of the $X$(3872)