Updated study of the eta(c) and eta '(c) decays into light vector mesons

	Updated study of the eta(c) and eta '(c) decays into light vector mesons
	Wang Q(王倩); Liu XH(刘晓海); 赵强 ;Wang, Q; Liu, XH; Zhao, Q
刊名	PHYSICS LETTERS B
	2012
卷号	711 期号:5 页码:364-370
英文摘要	We re-investigate the exclusive decays of eta(c) and eta'(c) to a pair of light vector mesons, i.e. eta(c)(eta'(c)) -> V V. The long-distance intermediate meson loop (IML) effects are evaluated as a non-perturbative mechanism in addition to the short-distance c (c) over bar. annihilation contributions. We show that both processes can be reasonably well constrained with the help of the available experimental data. Since eta(c) and eta'(c) are the spin-0 partners of J/psi and psi', respectively, our study is useful for gaining insights into the pQCD helicity selection rule violations in charmonium decays and the long-standing "rho pi puzzle". (c) 2012 Elsevier B.V. All rights reserved.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000304236500005
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/223955]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Wang Q,Liu XH,赵强；Wang, Q,et al. Updated study of the eta(c) and eta '(c) decays into light vector mesons[J]. PHYSICS LETTERS B,2012,711(5):364-370.
APA	王倩,刘晓海,赵强；Wang, Q,Liu, XH,&Zhao, Q.(2012).Updated study of the eta(c) and eta '(c) decays into light vector mesons.PHYSICS LETTERS B,711(5),364-370.
MLA	王倩,et al."Updated study of the eta(c) and eta '(c) decays into light vector mesons".PHYSICS LETTERS B 711.5(2012):364-370.