The line shapes to observe ηc in charmonium transitions, I.e.,ψ(2S), J/ψ→γηc, are investigated. The ηc line shape......

对基态粲偶素ηc包含多个全同粒子的特殊衰变模式,发展了利用动力学结果来挑选全同粒子组合的方法,并将此方法与传统的全记录法和......