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Zong Yuan-Yuan; Shen Peng-Nian; Zou Bing-Song; Liu Ji-Feng; Liang Wei-Hong; Zong, YY , Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China
Re-study of nucleon pole contribution in J/psi -> N(N)over-bar pi decay
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
KeywordLattice Gauge-theory J/psi p(p)Over-bar-eta Model
AbstractWere-study nucleon pole contribution in J/psi -> N (N) over bar pi decays by including the imaginary part for the propagator of the off-shell nucleon with energy above pi N threshold. It is found that when including the imaginary part in the propagator, the branching ratio of the decay width will descend about 11% compared with the result without including the imaginary part, no matter whether including the off-shell form factors or not. It also leads to a phase of up to 25 degrees for the off-shell nucleon propagator at invariant mass around 1400 MeV. This effect needs to be considered for detailed partial wave analysis of N-* resonances around this mass region.
2006
ISSN0253-6102
Volume46Issue:3Pages:507-513
Subject AreaPhysics
Indexed BySCI
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5907
CollectionSCI期刊论文
Corresponding AuthorZong, YY , Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zong Yuan-Yuan,Shen Peng-Nian,Zou Bing-Song,et al. Re-study of nucleon pole contribution in J/psi -> N(N)over-bar pi decay[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2006,46(3):507-513.
APA Zong Yuan-Yuan,Shen Peng-Nian,Zou Bing-Song,Liu Ji-Feng,Liang Wei-Hong,&Zong, YY , Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China.(2006).Re-study of nucleon pole contribution in J/psi -> N(N)over-bar pi decay.COMMUNICATIONS IN THEORETICAL PHYSICS,46(3),507-513.
MLA Zong Yuan-Yuan,et al."Re-study of nucleon pole contribution in J/psi -> N(N)over-bar pi decay".COMMUNICATIONS IN THEORETICAL PHYSICS 46.3(2006):507-513.
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