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题名: Instantaneous formulation for transitions between two instantaneous bound states and its gauge invariance
作者: Chang Chao-Hsi ;  Chen Jiao-Kai ;  Wang Guo-Li
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2006
卷号: 46, 期号:3, 页码:467-480
关键词: BETHE-SALPETER-EQUATION ;  MESONS ;  CHARMONIUM ;  MODEL ;  SYMMETRY ;  DECAYS
学科分类: Physics
通讯作者: Chang, CH , 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; China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China; Inst Adv Study, Princeton, NJ 08540 USA; Harbin Inst Technol, Dept Phys, Harbin 150006, Peoples R China
英文摘要: We have precisely derived a "rigorous instantaneous formulation" for transitions between two bound states when the bound states are well-described by instantaneous Bethe-Salpeter (BS) equation (i.e. the kernel of the equation is instantaneous "occasionally"). The obtained rigorous instantaneous formulation, in fact, is expressed as an operator sandwiched by two "reduced BS wave functions" properly, while the reduced BS wave functions appearing in the formulation are the rigorous solutions of the instantaneous BS equation, and they may relate to Schrodinger wave functions straightforwardly. We also show that the rigorous instantaneous formulation is gauge-invariant with respect to the U-em(1) transformation precisely, if the concerned transitions are radiative. Some applications of the formulation are outlined.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000240609800017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5904
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:
Chang Chao-Hsi,Chen Jiao-Kai,Wang Guo-Li. Instantaneous formulation for transitions between two instantaneous bound states and its gauge invariance[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2006,46(3):467-480.
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