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	Further insights into the "rho pi puzzle"
	Zhao Qiang1,2,3; Li Gang1; Chang Chao-Hsi4
刊名	Chinese physics c
	2010-02-01
卷号	34期号:2页码:299-304
关键词	Vector-meson dominance Decays of j/psi Upsilon Other quarkonia Hadronic decays of mesons
ISSN号	1674-1137
通讯作者	Zhao qiang(zhaoq@ihep.ac.cn)
英文摘要	Based on a systematic investigation of j/psi(psi') -> vp, where v and p stand for light vector and pseudoscalar mesons, we identify the role played by the electromagnetic (em) transitions and intermediate meson loop transitions, which are essential ingredients for understanding the j/psi and psi' couplings to vp. we show that on the one hand, the em transitions have relatively larger interferences in psi' -> rho pi and k*(k) over bar + c.c. as explicitly shown by vector meson dominance (vmd). on the other hand, the strong decay of psi' receives relatively larger destructive interferences from the intermediate meson loop transitions. by identifying these mechanisms in an overall study of j/psi(psi') -> vp, we provide a coherent, understanding of the so-called "rho pi puzzle".
WOS关键词	SCALAR GLUEBALL ; PSI'-DECAYS ; POSSIBLE EXPLANATION ; J/PSI ; VECTOR ; PSEUDOSCALAR ; F(0)(1500)
WOS研究方向	Physics
WOS类目	Physics, Nuclear ; Physics, Particles & Fields
语种	英语
出版者	CHINESE PHYSICAL SOC
WOS记录号	WOS:000274309200028
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2175976
专题	高能物理研究所
通讯作者	Zhao Qiang
作者单位	1.CAS, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England 3.CAS, Sci Facil, Ctr Theoret Phys, Beijing 100049, Peoples R China 4.CAS, Inst Theoret Phys, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhao Qiang,Li Gang,Chang Chao-Hsi. Further insights into the "rho pi puzzle"[J]. Chinese physics c,2010,34(2):299-304.
APA	Zhao Qiang,Li Gang,&Chang Chao-Hsi.(2010).Further insights into the "rho pi puzzle".Chinese physics c,34(2),299-304.
MLA	Zhao Qiang,et al."Further insights into the "rho pi puzzle"".Chinese physics c 34.2(2010):299-304.

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