Charmed-Hadron Productionin gamma(1S) Semi-inclusive Decay

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	Charmed-Hadron Productionin gamma(1S) Semi-inclusive Decay
	Chen, HT ; Sang, WL ; Wu, P
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2012
卷号	57 期号:4 页码:665-676
关键词	QUARKONIUM DECAY MATRIX-ELEMENTS S-WAVE ANNIHILATION QCD
ISSN号	0253-6102
通讯作者	Chen, HT (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
英文摘要	In the framework of the NRQCD factorization formalism, we calculate the decay rate for the process gamma(1S) -> c (c) over bar gg to the next-to-leading order (NLO) in the relative velocity v of the b quark in the bottomonium rest frame. We also study the momentum distributions of the charm quark and the charmed-hadron in the decay. The momentum distribution of the charmed-hadron is obtained by convolving the charm quark momentum distribution with a fragmentation function of the charm quark into the hadron. In addition, we fit the nonperturbative NRQCD matrix elementh < v(2)>gamma through comparing the theoretical prediction with the measurement from the BaBar collaboration for the decay rate of gamma(1S) -> D*(+) X. In return, taking this matrix element as an input parameter, we predict the decay rates as well as the momentum distributions for a collection of charmed-hadrons in the process gamma(1S) -> c (c) over bar gg -> hX.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China [10875130, 10935012, 10875156]
原文出处	http://dx.doi.org/10.1088/0253-6102/57/4/22
语种	英语
WOS记录号	WOS:000303049000022
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15128]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Chen, HT,Sang, WL,Wu, P. Charmed-Hadron Productionin gamma(1S) Semi-inclusive Decay[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2012,57(4):665-676.
APA	Chen, HT,Sang, WL,&Wu, P.(2012).Charmed-Hadron Productionin gamma(1S) Semi-inclusive Decay.COMMUNICATIONS IN THEORETICAL PHYSICS,57(4),665-676.
MLA	Chen, HT,et al."Charmed-Hadron Productionin gamma(1S) Semi-inclusive Decay".COMMUNICATIONS IN THEORETICAL PHYSICS 57.4(2012):665-676.