D介子谱的弦模型计算(英文)  

Masses of D mesons in string model

作　　者：王庆武[1] 宋元军[2] 

机构地区：[1]四川大学物理系,成都610064 [2]河北北方学院物理系,张家口075000

出　　处：《四川大学学报（自然科学版）》2012年第2期373-377,共5页Journal of Sichuan University(Natural Science Edition)

基　　金：中央高校基本科研业务费专项基金(2020204134010)

摘　　要：运用弦模型研究含有粲夸克的D介子谱.通过引入自旋自旋以及自旋轨道相互作用,发现D介子谱能被很好的描述.当把这个模型用于奇异Ds介子谱时,预测存在质量为2516 MeV的第一轨道激发态粒子.文章还分析了这类相互作用在单粲夸克重子谱中对能级劈裂的贡献.Using a relativistic string model, the charmed D meson spectrum has been studied. The spectrum can well be depicted by including spinspin and spinorbital interactions. First orbital excited meson with mass 2516 MeV has been predicted in Ds spectrum by using this model. Furthermore, The manifestations of S-S and S-L interactions in the charmed baryon spectrums have also been discussed.

关 键 词：粲介子 强子谱 弦模型 

分 类 号：O572.2[理学—粒子物理与原子核物理]