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题名: Comprehensive four-quark interpretation of D-s(2317), D-s(2457), and D-s(2632)
作者: Chen, YQ ;  Li, XQ
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2004
卷号: 93, 期号:23, 页码:-
关键词: HEAVY-QUARK SYMMETRY ;  MESONS ;  DECAYS
学科分类: Physics
通讯作者: Chen, YQ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China
英文摘要: The recently observed new member of the charm-strange family D-s(2632), which has a surprisingly narrow width, is challenging our theory. D-s(2317) and D-s(2457), which were observed earlier, have similar behaviors and receive various theoretical explanations. Some authors use the heavy hadron chiral effective theory to evaluate heavy-light quark systems and obtain a reasonable evaluation on the masses of D-s(2317) and D-s(2457). An alternative picture is to interpret them as four-quark or molecular states. In this work, we are following the latter and propose a unitive description for all three new members, D-s(2632), D-s(2317), and D-s(2457), and, at least, so far our picture is consistent with the data.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000225508000020
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13930
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:
Chen, YQ,Li, XQ. Comprehensive four-quark interpretation of D-s(2317), D-s(2457), and D-s(2632)[J]. PHYSICAL REVIEW LETTERS,2004,93(23):-.
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