中国科学院机构知识库网格系统: Case in favor of the N*(1700)(3/2(-))

Case in favor of the N*(1700)(3/2(-))

文献类型：期刊论文


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
ISSN号	0556-2813
通讯作者	Garzon, EJ (reprint author), Univ Valencia, CSIC, Inst Invest Paterna, Ctr Mixto,Dept Fis Teor, Apartado 22085, Valencia 46071, Spain.
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.
学科主题	Physics
收录类别	SCI
资助信息	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
原文出处	http://dx.doi.org/10.1103/PhysRevC.87.055204
语种	英语
WOS记录号	WOS:000319058200003
公开日期	2014-04-25
源URL	[http://ir.itp.ac.cn/handle/311006/15364]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Garzon, EJ,Xie, JJ,Oset, E. Case in favor of the N*(1700)(3/2(-))[J]. PHYSICAL REVIEW C,2013,87(5):55204.
APA	Garzon, EJ,Xie, JJ,&Oset, E.(2013).Case in favor of the N*(1700)(3/2(-)).PHYSICAL REVIEW C,87(5),55204.
MLA	Garzon, EJ,et al."Case in favor of the N*(1700)(3/2(-))".PHYSICAL REVIEW C 87.5(2013):55204.

入库方式： OAI收割

来源：理论物理研究所

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