Radiative decay of the psi(2S) into two pseudoscalar mesons

	Radiative decay of the psi(2S) into two pseudoscalar mesons
	BES Callaboration
刊名	PHYSICAL REVIEW D
	2003
卷号	67 期号:3
关键词	RHO-PI PUZZLE PSI' DECAYS 11 GEV/C J/PSI EXPLANATION GLUONS STATE
通讯作者	Bai, JZ (reprint author), Inst High Energy Phys, Beijing 100039, Peoples R China.
英文摘要	Radiative decays of the radially excited charmonium resonance, psi(2S), into pipi, K (K) over bar and etaeta final states have been measured in a sample of 4.02x10(6) psi(2S) events collected by the BES Collaboration. The branching ratios B(psi(2S)-->gammaf(2)(1270))=(2.12+/-0.19+/-0.32)x10(-4) and B(psi(2S)-->gammaf(0)(1710))xB(f(0)(1710)--> K+K-)=(3.02+/-0.45+/-0.66)x10(-5) are obtained. When compared to the corresponding radiative J/psi decays, the observed psi(2S) radiative decay rates into gammaf(2)(1270) and gammaf(0)(1710) are consistent with the prediction of the "12%" rule.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000181431400006
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212270]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	BES Callaboration. Radiative decay of the psi(2S) into two pseudoscalar mesons[J]. PHYSICAL REVIEW D,2003,67(3).
APA	BES Callaboration.(2003).Radiative decay of the psi(2S) into two pseudoscalar mesons.PHYSICAL REVIEW D,67(3).
MLA	BES Callaboration."Radiative decay of the psi(2S) into two pseudoscalar mesons".PHYSICAL REVIEW D 67.3(2003).