Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state

doi:10.1142/S0217751X05023578

	Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state
	Guo, FK ; Shen, PN ; Chiang, HC ; Ping, RG
	2005
会议日期	AUG 29-SEP 04, 2004
会议地点	Chinese Acad Sci, Inst High Energy Phys, Beijing, PEOPLES R CHINA
关键词	PI-PI-SPECTRUM HADRONIC TRANSITIONS GAMMA(3S) DECAYS
卷号	20
期号	8-9
DOI	10.1142/S0217751X05023578
页码	1893-1896
英文摘要	pi(+)pi(-) transitions of heavy quarkonia, especially the Upsilon(3S) -> Upsilon(1S)pi(+)pi(-) decay process axe studied. An effective Lagrangian is employed and the S wave pi pi final state interaction (FSI) is included in the framework of the Chiral Unitary Theory (ChUT). It is found that when an additional intermediate state with J(P) = 1(+) and I = 1 is introduced, the experimental data can be well-explained, and a consistent description of bottomonium pi(+)pi(-) transitions can be obtained. As a consequence, the mass and the width of the intermediate state are predicted. From the quark content analysis, this state should be a bbqq state.
源文献作者	Chinese Acad Sci, Inst High Energy Phys
会议录	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
会议录出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
会议录出版地	SINGAPORE
语种	英语
URL标识	查看原文
ISSN号	0217-751X
WOS研究方向	Physics
内容类型	会议论文
源URL	[http://ir.itp.ac.cn/handle/311006/23704]
专题	SCI会议论文
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 5.CCAST, World Lab, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Guo, FK,Shen, PN,Chiang, HC,et al. Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state[C]. 见:. Chinese Acad Sci, Inst High Energy Phys, Beijing, PEOPLES R CHINA. AUG 29-SEP 04, 2004.