Angular distributions in $J/ψ(ρ,ω)$ states near threshold

Details Angular distributions in $J/ψ(ρ,ω)$ states near threshold Angular distributions in $J/ψ(ρ,ω)$ states near threshold

2004-08-30

arxiv.org/abs/hep-ph/0408334v1

Phys.Rev.D70:094023,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.70.094023

A resonance X(3872), first observed in the decays $B \to K X$, 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.

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