Description of the psi (3770) resonance interfering with the background

作者：Achasov N N^*; Shestakov G N

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2013, 87(5): 057502.

DOI：10.1103/PhysRevD.87.057502

The parameters of the interfering psi (3770) resonance should be determined from the data on the reactions e(+)e(-) -> D (D) over bar with the use of the models satisfying the elastic unitarity requirement. The selection of such models can be realized by comparing their predictions with the relevant data on the shape of the psi(3770) peak in the non-D (D) over bar decay channels. Here, we illustrate this unitarity approach by the example of the most simple variant of the model of the mixed psi(3770) and psi(2S) resonances. When new high-statistics data become available, it will be interesting to test this clarity variant. DOI: 10.1103/PhysRevD.87.057502

• 出版日期2013-3-25