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Gluonia and charmonium decays
Chao, KT; Gu, YF; Tuan, SF; Chao, KT , BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA.
1996
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号25期号:4页码:471-478
摘要We discuss the search for a 1(--) gluonium state, O, in connection with a possible solution for the so-called p pi, K* (K) over bar puzzle in the J/psi and psi' decays. Some issues are examined. In particular, we argue that the expected most favorable process psi' --> pi pi O can have an appreciable branching ratio (say 10(-3) similar to 10(-4)) only if the O has a very narrow partial decay width to p pi (say 1 similar to 10 MeV) For the 0(-+) system we deduce a relation that BR(eta(c)' --> h) approximate to BR (eta(c) --> h), where h denotes an exclusive light hadronic channel. This relation may be useful for the experimental search of the yet to be confirmed eta(c)' state, for which the branching ratios of psi' --> gamma eta(c)' --> gamma KK pi, gamma eta pi pi, gamma eta'pi pi are estimated to be about 1 x 10(-4) if the mass of eta(c)' is around 3600 MeV, and this relation may also serve as a criterion to determine whether there exist anomalous decays in eta(c) and eta(c)' system, in particular in the VV decay channels, which might be related to the 0(-+) glueball-charmonium mixing. We emphasize that the bigluonium and the trigluonium may have very different effects on these decays.
部门归属CCAST,WORLD LAB,CTR THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA; UNIV HAWAII MANOA,DEPT PHYS,HONOLULU,HI 96822
关键词Quantum Chromodynamics Glueball States Puzzle Rule
学科领域Physics
收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12620
专题理论物理所SCI论文
通讯作者Chao, KT , BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA.
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Chao, KT,Gu, YF,Tuan, SF,et al. Gluonia and charmonium decays[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1996,25(4):471-478.
APA Chao, KT,Gu, YF,Tuan, SF,&Chao, KT , BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA..(1996).Gluonia and charmonium decays.COMMUNICATIONS IN THEORETICAL PHYSICS,25(4),471-478.
MLA Chao, KT,et al."Gluonia and charmonium decays".COMMUNICATIONS IN THEORETICAL PHYSICS 25.4(1996):471-478.
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