Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties submitted time 2017-03-26
Abstract：The measurement of the exclusive light hadron decays of the ψ" in e+e- experiments with significant interference between the ψ" and continuum amplitudes is discussed. The radiative correction and the Monte Carlo simulation are studied. A possible to verify the destructive interference is proposed for the detectors with energy-momentum resolution of (1～2)%.
Peer Review Status:
Awaiting Review
Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties submitted time 2017-03-26
Abstract：The e+e− decay partial width of the recently observed state, X(3872), is estimated using the ISR data collected Root s=4.03 GeV in e+e− annihilation experiment by BES at BEPC. It is found that Γe+e-Bπ+π-J/ψ＜10eV at 90% C.L. if the JPC of X(3872) is 1−−. Together with the potential models and other information, we conclude that X(3872) is very unlikely to be a vector state.
Peer Review Status:Awaiting Review
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