Chromopolarizabilities of bottomonia from the Upsilon(2S, 3S, 4S) -> Upsilon(1S, 2S)pi pi transitions

doi:10.1103/PhysRevD.100.054035

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	Chromopolarizabilities of bottomonia from the Upsilon(2S, 3S, 4S) -> Upsilon(1S, 2S)pi pi transitions
	Chen, Yun-Hua ; Guo, Feng-Kun
刊名	PHYSICAL REVIEW D
	2019
卷号	100 期号:5 页码:54035
关键词	HADRONIC TRANSITIONS HEAVY J/PSI DECAYS STATES
ISSN号	2470-0010
DOI	10.1103/PhysRevD.100.054035
英文摘要	The dipion transitions Upsilon(2S,3S,4S) -> Upsilon(1S,2S)pi pi are systematically studied by considering the mechanisms of the hadronization of soft gluons, exchanging the bottomoniumlike Z(b) states, and the bottom-meson loops. The strong pion-pion final-state interaction, especially including the channel coupling to K (K) over bar in the S-wave, is taken into account in a model-independent way using the dispersion theory. Through fitting to the available experimental data, we extract values of the transition chromo-polarizabilities vertical bar alpha(Upsilon(ms)Upsilon(ns))vertical bar, which measure the chromoelectric couplings of the bottomonia with soft gluons. It is found that the Z(b) exchange has a slight impact on the extracted chromopolarizablity values, and the obtained vertical bar alpha(Upsilon(2s)Upsilon(1s))vertical bar considering the Z(b) exchange is (0.29 +/- 0.20) GeV-3. Our results could be useful in studying the interactions of bottomonium with light hadrons.
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/311006/26942]
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.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yun-Hua,Guo, Feng-Kun. Chromopolarizabilities of bottomonia from the Upsilon(2S, 3S, 4S) -> Upsilon(1S, 2S)pi pi transitions[J]. PHYSICAL REVIEW D,2019,100(5):54035.
APA	Chen, Yun-Hua,&Guo, Feng-Kun.(2019).Chromopolarizabilities of bottomonia from the Upsilon(2S, 3S, 4S) -> Upsilon(1S, 2S)pi pi transitions.PHYSICAL REVIEW D,100(5),54035.
MLA	Chen, Yun-Hua,et al."Chromopolarizabilities of bottomonia from the Upsilon(2S, 3S, 4S) -> Upsilon(1S, 2S)pi pi transitions".PHYSICAL REVIEW D 100.5(2019):54035.