Abstract
We study the possibility of the scalar charmonium and glueball mixing in e+e− annihilation at s=10.6 GeV. The effects can be used to explain the unexpected large cross section (12±4 fb) and the anomalous angular distribution (α=−1.1+0.8−0.6) of the exclusive e+e−→J/ψχc0 process observed by Belle experiments at KEKB. We calculate the helicity amplitudes for the process e+e−→J/ψH(0++) in NRQCD, where H(0++) is the mixed state. We present a detailed analysis on the total cross section and various angular asymmetries which could be useful to reveal the existence of the scalar glueball state.
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