摘要
We give a brief discussion on the measurement of the cross section for D^-D production around the ψ（3770） resonance, and point out a new calculation of the cross sections based on the absolute measurements. Compared with single tag and double tag analyses, the new calculation provides us with many more opportunities to perform the cross section measurement.
We give a brief discussion on the measurement of the cross section for D^-D production around the ψ（3770） resonance, and point out a new calculation of the cross sections based on the absolute measurements. Compared with single tag and double tag analyses, the new calculation provides us with many more opportunities to perform the cross section measurement.
基金
Supported by the National Natural Science Foundation of China under Grant Nos 10775075 and 10835001.
作者简介
To whom correspondence should be addressed. Email： zhaomg@ihep.ac.cn
