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题名: Case in favor of the N*(1700)(3/2(-))
作者: Garzon, EJ ;  Xie, JJ ;  Oset, E
刊名: PHYSICAL REVIEW C
出版日期: 2013
卷号: 87, 期号:5, 页码:55204
关键词: HIDDEN LOCAL SYMMETRY ;  PARTIAL-WAVE ANALYSIS ;  PI-N ;  ISOBAR-MODEL ;  GAUGE BOSON ;  RESONANCES ;  AMPLITUDES ;  ELECTROPRODUCTION ;  TRANSITION ;  DYNAMICS
学科分类: Physics
通讯作者: Garzon, EJ (reprint author), Univ Valencia, CSIC, Inst Invest Paterna, Ctr Mixto,Dept Fis Teor, Apartado 22085, Valencia 46071, Spain.
部门归属: [Garzon, E. J.; Oset, E.] Univ Valencia, CSIC, Inst Invest Paterna, Ctr Mixto,Dept Fis Teor, Valencia 46071, Spain; [Garzon, E. J.; Oset, E.] Univ Valencia, CSIC, Inst Invest Paterna, Ctr Mixto,IFIC, Valencia 46071, Spain; [Xie, J. J.] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China; [Xie, J. J.] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: Using an interaction extracted from the local hidden-gauge Lagrangians, which brings together vector and pseudoscalar mesons, and the coupled channels rho N (s wave), pi N (d wave), pi Delta (s wave), and pi Delta (d wave), we look in the region ofv root s = 1400-1850 MeV and find two resonances dynamically generated by the interaction of these channels, which are naturally associated to N*(1520)(3/2(-)) and N*(1700)(3/2(-)). N*(1700)(3/2(-)) appears neatly as a pole in the complex plane. The free parameters of the theory are chosen to fit the pi N (d-wave) data. Both the real and imaginary parts of the pi N amplitude vanish in our approach in the vicinity of this resonance, which is similar to what happens in experimental determinations and which makes this signal very weak in this channel. This feature could explain why this resonance does not show up in some experimental analyses, but the situation is analogous to that of the f(0)(980) resonance, the second scalar meson after sigma[f(0)(500)] in the pi pi(d-wave) amplitude. The unitary coupled channel approach followed here, in connectionwith the experimental data, leads automatically to a pole in the 1700-MeV region and makes this second 3/2-resonance unavoidable.
资助者: Spanish Ministerio de Economia y Competitividad; Generalitat Valenciana in the program Prometeo; European Community Research Infrastructure Integrating Activity Study of Strongly Interacting Matter [283286]; EU
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000319058200003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15364
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Garzon, EJ,Xie, JJ,Oset, E. Case in favor of the N*(1700)(3/2(-))[J]. PHYSICAL REVIEW C,2013,87(5):55204.
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