Heavy quark spin selection rule and the properties of the X(3872)

Abstract

The properties of the resonance X(3872) are discussed under the assumption that this resonance is dominantly a `molecular' $J^{PC}=1^{++}$ state of neutral $D$ and $D^{\ast }$ mesons. It is argued that in these properties should dominate the states with the total spin of the charmed quark-antiquark pair equal to one. As a practical application of this observation the ratio of the rates of the decays $X\to {\pi }^0{\chi }_{cJ}$ for different $J$ is predicted. It is also pointed out that the total rate of these decays is likely to be comparable to that of the observed transitions $X\to {\pi }^{+}{\pi }^{-}J\psi$ and $X\to {\pi }^{+}{\pi }^{-}{\pi }^{0}J\psi$. The decays of the X into light hadrons and its production in hadronic processes are also briefly discussed.

arXiv comment7 pages

References in corpus (8)

• 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
• Isospin breaking of the narrow charmonium state of Belle at 3872 MeV as a deuson
• Short Range Structure in the X(3872)
• The D*0 D0bar threshold resonance
• Interference and binding effects in decays of possible molecular component of X(3872)
• On the hidden charm state at 3872 MeV
• Production of the X(3870) at the Upsilon(4S) by the Coalescence of Charm Mesons

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