摘要
As is the case for the J/φ（1S） and φ（2S）, the full widths of the bb states T（1S）, T（2S）, and T（3S） are not directly measurable, since they are much narrower than the energy resolution of the e＋e- storage rings where these states are produced. The common indirect method to determine F starts from
As is the case for the J/φ（1S） and φ（2S）, the full widths of the bb states T（1S）, T（2S）, and T（3S） are not directly measurable, since they are much narrower than the energy resolution of the e＋e- storage rings where these states are produced. The common indirect method to determine F starts from
