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Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state
Guo, FK; Shen, PN; Chiang, HC; Ping, RG; Guo, FK , Chinese Acad Sci, Inst High Energy Phys, POB 918, Beijing 100049, Peoples R China.
2005
发表期刊INTERNATIONAL JOURNAL OF MODERN PHYSICS A
ISSN0217-751X
卷号20期号:41130页码:1893-1896
摘要π(+)π(-) transitions of heavy quarkonia, especially the &UUpsilon;(3S) → &UUpsilon;(1S)π(+)π(-) decay process axe studied. An effective Lagrangian is employed and the S wave ππ 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 π(+)π(-) 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.
部门归属Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; CCAST, World Lab, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
关键词Pi-pi-spectrum Hadronic Transitions Gamma(3s) Decays
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13841
专题理论物理所SCI论文
通讯作者Guo, FK , Chinese Acad Sci, Inst High Energy Phys, POB 918, Beijing 100049, Peoples R China.
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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[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2005,20(41130):1893-1896.
APA Guo, FK,Shen, PN,Chiang, HC,Ping, RG,&Guo, FK , Chinese Acad Sci, Inst High Energy Phys, POB 918, Beijing 100049, Peoples R China..(2005).Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,20(41130),1893-1896.
MLA Guo, FK,et al."Heavy quarkonium pi(+)pi(-) transitions and a possible b(b)over-barq(q)over-bar state".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 20.41130(2005):1893-1896.
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