The interference between virtual photon and 1-- charmonium in e+e-experiment

Abstract

e+e- Experiments producing charmonium are reviewed. It is found that the contribution of the continuum amplitude via virtual photon was neglected in almost all the experiments and the channels analyzed. It is shown that the contribution of the continuum part may affect the final results significantly in psi(2S) and psi(3770) decays, while the interference between continuum and resonance amplitudes may even affect the J/psi decays as well as the psi(2S) and psi(3770). This should be considered in analyzing the "rho-pi puzzle" between J/psi and psi(2s) decays, and the difference between inclusive hadron and DDbar cross sections in psi(3770) decays.

6 pages, 2 figures

References in corpus (1)

• The Form Factors of omega pi0 and pi+ pi- at psi(2S)

Cited by in corpus (16)

• Evidence for psi' decays into gamma pi^0 and gamma eta
• Measurement of main parameters of the ψ(2S) resonance
• Determination of the relative phase in ψ' and J/ψ decays into baryon and antibaryon
• Observation of the decay $\psip\rar\kstark$
• A cornucopia of antineutrons and hyperons from super J/psi factory for next-generation nuclear and particle physics high-precision experiments
• Measurements of $\psi (2S)$ decays into $\varphi {\pi }^0$, $\varphi \eta$, $\varphi {\eta }^{{}^{\prime }}$, $\omega \eta$, and $\omega {\eta }^{{}^{\prime }}$
• Observation of $\psi (3686)\to n\bar{n}$ and improved measurement of $\psi (3686)\to p\bar{p}$
• Measurement of the exclusive light hadron decays of the psi'' in e+e- experiments
• Measuring psi(3770) -> Kshort Klong as a test of the S- and D-wave mixing of charmonia
• Impact of the interference between the resonance and continuum amplitudes on vector quarkonia decay branching fraction measurements
• Survival before annihilation in Psi-prime decays
• Symmetry analysis of charmonium decays to two-baryon final state
• Symmetry analysis of charmonium two-body decay
• Analytical formula for the cross section of hadron production from $e^{+}{e}^{-}$ collisions around the narrow charmouinum resonances
• Hadronic decays of charmonia from BESII
• Analytic forms for the $e^{+}{e}^{-}$ annihilation cross sections around a resonance including initial state radiation