Inclusive production of heavy quarkonium eta(Q) via Z boson decays within the framework of nonrelativistic QCD

doi:10.1103/PhysRevD.104.054044

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	Inclusive production of heavy quarkonium eta(Q) via Z boson decays within the framework of nonrelativistic QCD
	Zheng, Xu-Chang ; Chang, Chao-Hsi ; Wu, Xing-Gang ; Huang, Xu-Dong ; Wang, Guang-Yu
刊名	PHYSICAL REVIEW D
	2021
卷号	104 期号:5 页码:54044
ISSN号	2470-0010
DOI	10.1103/PhysRevD.104.054044
英文摘要	In the paper, the inclusive production of heavy quarkonium eta(Q) (Q = b or c) via Z boson decays within the framework of nonrelativistic QCD effective theory are studied. The contributions from the leading color-singlet and color-octet Fock states are considered. Total and differential decay widths for the inclusive decays Z -> eta(Q) + X are presented. It is found that the decays Z -> eta(Q) + X arc dominated by the S-3(1)[8] component, so the decays can be inversely adopted to determine the values of the long-distance matrix elements < O-eta c(S-3(1)[8])> and < O-eta b(S-3(1)[8])>, respectively. Our numerical results show that at an e(+)e(-) collider running at the Z pole with a high luminosity around 10(35) cm(-2) s(-1) (a super Z factory), there are about 4.5 x 10(7) eta(c) meson events and 6.1 x 10(5) eta(b) meson events to be produced per operation year, and the inclusive decays may be used for clarifying some problems on the heavy quarkonium eta(Q) and nonrelativistic QCD.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27626]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Wu, Xing-Gang 2.Huang, Xu-Dong 3.Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China 4.[Zheng, Xu-Chang 5.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 7.CCAST World Lab, Beijing 100190, Peoples R China 8.Chongqing Key Lab Strongly Coupled Phys, Chongqing 401331, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Xu-Chang,Chang, Chao-Hsi,Wu, Xing-Gang,et al. Inclusive production of heavy quarkonium eta(Q) via Z boson decays within the framework of nonrelativistic QCD[J]. PHYSICAL REVIEW D,2021,104(5):54044.
APA	Zheng, Xu-Chang,Chang, Chao-Hsi,Wu, Xing-Gang,Huang, Xu-Dong,&Wang, Guang-Yu.(2021).Inclusive production of heavy quarkonium eta(Q) via Z boson decays within the framework of nonrelativistic QCD.PHYSICAL REVIEW D,104(5),54044.
MLA	Zheng, Xu-Chang,et al."Inclusive production of heavy quarkonium eta(Q) via Z boson decays within the framework of nonrelativistic QCD".PHYSICAL REVIEW D 104.5(2021):54044.