分类: 物理学 >> 普通物理:统计和量子力学,量子信息等 提交时间: 2017-09-17
摘要: In the framework of heavy quark effective theory we use QCD sum rules to calculate the masses of the ¯cs (0+, 1+) and (1+, 2+) excited states. The results are consistent with that the states DsJ (2317) and DsJ (2460) observed by BABAR and CLEO are the 0+ and 1+ states in the jl =12+doublet.