Transition properties of low-lying resonances in a relativistic quark model with a meson cloud
Dong YB(董宇兵); Dong, YB; Faessler, A; Shimizu, K
刊名NUCLEAR PHYSICS A
2002
卷号705期号:1-2页码:#REF!
关键词relativistic quark model coupling constants pion cloud decay width Delta(1232) P-11 (1440)
学科分类Physics
DOI10.1016/S0375-9474(02)00638-3
通讯作者Dong, YB (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
文章类型Article
英文摘要Based on a relativistic quark model approach, the transition properties of two positive-parity low-lying nucleon resonances Delta(1232) and Roper N(1440)p(11) and of Delta*(1600)P-33 resonance are investigated. The coupling constants gpiNN, gpiNDelta, gpiNN* and gpiNDelta* are also estimated. Two different ways to remove the center-of-mass motion are discussed. Our results of the relativistic approaches with and without the center-of-mass correction are compared to those of the nonrelativistic constituent quark model and to experimental data. Moreover, the effect of the pion cloud on the calculated observables is studied. Better results for the transition properties of the Delta(1232) resonance are obtained by taking the pion cloud into account explicitly. (C) 2002 Elsevier Science B.V. All rights reserved.
类目[WOS]Physics, Nuclear
收录类别SCI
WOS记录号WOS:000176944500008
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226543
专题中国科学院高能物理研究所_理论物理室_期刊论文
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Dong YB,Dong, YB,Faessler, A,et al. Transition properties of low-lying resonances in a relativistic quark model with a meson cloud[J]. NUCLEAR PHYSICS A,2002,705(1-2):#REF!.
APA 董宇兵,Dong, YB,Faessler, A,&Shimizu, K.(2002).Transition properties of low-lying resonances in a relativistic quark model with a meson cloud.NUCLEAR PHYSICS A,705(1-2),#REF!.
MLA 董宇兵,et al."Transition properties of low-lying resonances in a relativistic quark model with a meson cloud".NUCLEAR PHYSICS A 705.1-2(2002):#REF!.
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