Angular distributions in $J/\psi (\rho ,\omega )$ states near threshold

Abstract

A resonance X(3872), first observed in the decays $B\to KX$, has been seen to decay to $J/\psi {\pi }^{+}{\pi }^{-}$. The ${\pi }^{+}{\pi }^{-}$ mass spectrum peaks near its kinematic upper limit, prompting speculation that the dipion system may be in a ${\rho }^0$. The decay $X(3872)\to J/\psi \omega$ also has been observed. The reaction $\gamma \gamma \to J/\psi {\pi }^{+}{\pi }^{-}$ has been studied. Consequently, angular distributions in decays of $J/\psi ({\rho }^0,\omega )$ states near threshold are of interest, and results are presented.

10 pages, no figures. To be submitted to Phys. Rev. D

References in corpus (7)

• Study of the B- --> J/psi K- pi+ pi- Decay and Measurement of the B- --> X(3872) K- Branching Fraction
• Diagnostic Decays of the X(3872)
• Heavy quark spin selection rule and the properties of the X(3872)
• The Lost Tribes of Charmonium
• Search for a Charmonium Assignment for the X(3872)
• Comment on the narrow charmonium state of Belle at 3871.8 MeV as a deuson
• Properties of the X(3872) at Belle

Cited by in corpus (19)

• The hidden-charm pentaquark and tetraquark states
• Exotics: Heavy Pentaquarks and Tetraquarks
• Charmonium
• Quarkonia and their transitions
• The X(3872) boson: Molecule or charmonium
• X(3872): Hadronic Molecules in Effective Field Theory
• Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decays
• New states above charm threshold
• Study of X(3915) --> J/ψω in two-photon collisions
• Decays of the X(3872) into J/psi and Light Hadrons
• Exclusive Production of the X(3872) in B Meson Decay
• Factorization in the Production and Decay of the X(3872)
• Could the $X(3915)$ and the $X(3930)$ Be the Same Tensor State?
• Hadron Spectroscopy: Theory and Experiment
• The X(3872) and the 3941 MeV peak in omega+J/Psi
• Heavy Quark Spectroscopy -- Theory Overview
• On the Spin of the X(3872)
• Can X(3915) be the tensor partner of the X(3872)?
• New charm resonances