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Masses and sigma terms of pentaquarks in chiral perturbation theory
Li Xiao-Ya; Lu Xiao-Fu; Li, XY , Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China
2006
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号46期号:4页码:704-710
摘要Assuming that the recently theta(+) and other exotic resonances belong to the pentaquark (1) over bar(0) over bar of SU(3)(f) with J(P) = 1/2, we constructed a relativistic effective lagrangian in the frame work of baryon chiral perturbation theory. The masses of pentaquarks under isospin symmetry is determined by calculating the propagator to one loop, where the extended on-mass-shell renormalization scheme is applied. Using the experimental data for masses of (+theta), Xi and N, we estimated the mass of Sigma and the sigma terms.
部门归属Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China
关键词Positive-strangeness
学科领域Physics
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收录类别SCI
WOS记录号WOS:000241532500028
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5886
专题理论物理所1978-2010年知识产出
通讯作者Li, XY , Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China
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GB/T 7714
Li Xiao-Ya,Lu Xiao-Fu,Li, XY , Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China. Masses and sigma terms of pentaquarks in chiral perturbation theory[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2006,46(4):704-710.
APA Li Xiao-Ya,Lu Xiao-Fu,&Li, XY , Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China.(2006).Masses and sigma terms of pentaquarks in chiral perturbation theory.COMMUNICATIONS IN THEORETICAL PHYSICS,46(4),704-710.
MLA Li Xiao-Ya,et al."Masses and sigma terms of pentaquarks in chiral perturbation theory".COMMUNICATIONS IN THEORETICAL PHYSICS 46.4(2006):704-710.
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