QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in alpha(s)

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	QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in alpha(s)
	Huang, HW; Chao, KT; Huang, HW , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
刊名	PHYSICAL REVIEW D
	1996
卷号	54 期号:11 页码:6850-6854
关键词	Lattice Gauge-theory Charmonium States Dependence Spin
ISSN号	0556-2821
英文摘要	The decay rates of P-wave heavy quarkonia to light hadrons are presented to leading order in upsilon(2) and next-to-leading order in alpha(s). They include contributions from both the color-singlet component and the color-octet component of quarkonia. Applying these results to charmonium and using measuring decay rates for the chi(c1) and chi(c2) by E760, we determine the two nonperturbative decay matrix elements, and then predict the hadronic decay rates of chi(c0) and h(c), and the electromagnetic decay rates of chi(c0) and chi(c2). The obtained decay rates of chi(c0) --> LH and chi(c0) --> gamma gamma are in agreement with the Crystal ball results, and also with the new measurements by BES. However, the results for Gamma(chi(c0) --> LH) are dependent on the choice of renormalization scale.
学科主题	Physics
URL标识	查看原文
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12552]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Huang, HW , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
推荐引用方式 GB/T 7714	Huang, HW,Chao, KT,Huang, HW , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.. QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in alpha(s)[J]. PHYSICAL REVIEW D,1996,54(11):6850-6854.
APA	Huang, HW,Chao, KT,&Huang, HW , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA..(1996).QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in alpha(s).PHYSICAL REVIEW D,54(11),6850-6854.
MLA	Huang, HW,et al."QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in alpha(s)".PHYSICAL REVIEW D 54.11(1996):6850-6854.