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Zong Yuan-Yuan; Shen Peng-Nian; Zou Bing-Song![]() | |
Re-study of nucleon pole contribution in J/psi -> N(N)over-bar pi decay | |
Source Publication | COMMUNICATIONS IN THEORETICAL PHYSICS
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Keyword | Lattice Gauge-theory J/psi p(p)Over-bar-eta Model |
Abstract | Were-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 | |
ISSN | 0253-6102 |
Volume | 46Issue:3Pages:507-513 |
Subject Area | Physics |
Indexed By | SCI |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itp.ac.cn/handle/311006/5907 |
Collection | SCI期刊论文 |
Corresponding Author | Zong, 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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