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检索条件"主题词=ππ scattering"
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On Factorization of Coupled Channel scattering S Matrices
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Communications in Theoretical Physics 2007年 第5X期48卷 901-907页
作者: FANG Ke-Jie Department of Physics Peking University Bei jing 100871 China
We investigate the problem on how to factorize a coupled channel scattering S matrix into a product of simple S matrices. Simple S matrix solntions are found, respecting unitarity, analyticity and being real analytic.... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Studies on σ Resonance in a New Unitarization Approach
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Communications in Theoretical Physics 2005年 第2期43卷 268-274页
作者: ZHANGPeng ZHOUZhi-Yong QINGuang-You ZHENGHan-Qing DepartmentofPhysics PekingUniversityBeijing100871China
The pole position of the σ meson is determined using the recently proposednew unitarization method combined with the two-loop SU(2) X SU(2) chiral perturbation theoryresults. The scattering length parameters and the ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Use of Dispersion Relations in ππ and KK^- Coupled-Channel System
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Communications in Theoretical Physics 2007年 第4X期48卷 685-694页
作者: XIAO Zhi-Guang ZHENG Han-Qing Department of Physics Peking University Beijing 100871 China
Systematic and careful studies are made on the properties of the IJ =00 7rTr and KK^- coupled-channel system, using newly derived dispersion relations between the phase shifts and poles and cuts. The effects of nearby... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Use of Dispersion Relations in ππ and K■ Coupled-Channel System
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Communications in Theoretical Physics 2007年 第10期 685-694页
作者: XIAO Zhi-Guang ZHENG Han-Qing Department of Physics,Peking University,Beijing 100871,China Department of Physics Peking University Beijing 100871 China
Systematic and careful studies are made on the properties of the IJ=00 ππ and KK coupled-channelsystem,using newly derived dispersion relations between the phase shifts and poles and *** effects of nearbybranch poin... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论