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题名: ELECTRIC-DIPOLE TRANSITIONS OF PSI(3770) AND S-D MIXING BETWEEN PSI(3686) AND PSI(3770)
作者: DING, YB ;  QIN, DH ;  CHAO, KT
刊名: PHYSICAL REVIEW D
出版日期: 1991
卷号: 44, 期号:11, 页码:3562-3566
关键词: CHARMONIUM ;  QUARKONIUM ;  MODEL
学科分类: Physics
通讯作者: DING, YB , WORLD LAB,CHINESE CTR ADV SCI & TECHNOL,BEIJING 100080,PEOPLES R CHINA.
部门归属: ACAD SINICA,GRAD SCH,DEPT PHYS,BEIJING 100039,PEOPLES R CHINA; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA
英文摘要: Various E1 transition rates for psi(3770) and other ccBAR states are calculated in a QCD-motivated potential model. Relativistic corrections are found to be substantial. While a good agreement between theory and experiment is achieved for the rates of psi(2S) --> gamma-chi(cJ) and chi(cJ) --> gamma-psi(1S) (J = 0, 1, 2), the calculated rates for psi(3770) --> gamma-chi(cJ) are smaller by a factor of -2 than their experimental values obtained by the Mark III Collaboration. The S-D mixing effects are further considered and are found to be important. The mixing angle theta = -10-degrees is favored and 0 = 30-degrees is ruled out. While most observed transition rates may be explained in the theory, the disagreement between theory and the psi(3770) --> gamma-chi-1 data still remains to be clarified.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/11280
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
DING, YB,QIN, DH,CHAO, KT. ELECTRIC-DIPOLE TRANSITIONS OF PSI(3770) AND S-D MIXING BETWEEN PSI(3686) AND PSI(3770)[J]. PHYSICAL REVIEW D,1991,44(11):3562-3566.
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