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ELECTRIC-DIPOLE TRANSITIONS OF PSI(3770) AND S-D MIXING BETWEEN PSI(3686) AND PSI(3770)
DING, YB; QIN, DH; CHAO, KT; DING, YB , WORLD LAB,CHINESE CTR ADV SCI & TECHNOL,BEIJING 100080,PEOPLES R CHINA.
1991
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号44期号:11页码:3562-3566
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.
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
关键词Charmonium Quarkonium Model
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/11280
专题理论物理所1978-2010年知识产出
通讯作者DING, YB , WORLD LAB,CHINESE CTR ADV SCI & TECHNOL,BEIJING 100080,PEOPLES R CHINA.
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DING, YB,QIN, DH,CHAO, KT,et al. 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.
APA DING, YB,QIN, DH,CHAO, KT,&DING, YB , WORLD LAB,CHINESE CTR ADV SCI & TECHNOL,BEIJING 100080,PEOPLES R CHINA..(1991).ELECTRIC-DIPOLE TRANSITIONS OF PSI(3770) AND S-D MIXING BETWEEN PSI(3686) AND PSI(3770).PHYSICAL REVIEW D,44(11),3562-3566.
MLA DING, YB,et al."ELECTRIC-DIPOLE TRANSITIONS OF PSI(3770) AND S-D MIXING BETWEEN PSI(3686) AND PSI(3770)".PHYSICAL REVIEW D 44.11(1991):3562-3566.
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