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题名: Possible interpretations of D-sJ(+)(2632) if it really exists
作者: Dai, YB ;  Liu, C
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2004
期号: 11, 页码:-
关键词: MESONS ;  SELEX
学科分类: Physics
通讯作者: Dai, YB , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Peking Univ, Dept Phys, Beijing 100871, Peoples R China
英文摘要: We analyze various possible interpretations of the narrow state D-sJ(+)(2632) observed by SELEX Collaboration recently, which ties above threshold and has abnormal decay pattern. These interpretations include: (1) several versions of tetraquarks; (2) conventional c (s) over bar meson such as the first radial excitation of D-s(2112) with abnormally large SU(3) symmetry breaking; (3) conventional c (s) over bar meson with abnormally large eta(1) coupling; (4) heavy hybrid meson. We discuss the physical implications of each interpretation. For example, if the existence of D-sJ(+)(2632) is confirmed as the first radial excitation of D-s(2112) by other experiments, it will be helpful to took for (1) its SU(3) flavor partners D-J(0,+)(2530); (2) its B-meson analogues B-J(0,+)(5840) B-sJ(+)(5940); (3) S-wave two pion decay modes. We also discuss possible reasons of negative results in search of D-sJ(+)(2632) by other experiments.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000226576700043
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13974
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Dai, YB,Liu, C. Possible interpretations of D-sJ(+)(2632) if it really exists[J]. JOURNAL OF HIGH ENERGY PHYSICS,2004(11):-.
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