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Huang, Y; He, J; Chen, XR; Wang, R; Xie, JJ; Zhang, HF; He, J (reprint author), Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China.
Theoretical investigation of the decay of the N(2120) resonance to nucleon resonances near 1.7 GeV
发表期刊PHYSICAL REVIEW C
语种英语
摘要Background: Until now the knowledge about nucleon resonances with a mass higher than 2 GeV has been scarce. Huge amounts of experimental data of the multipion photoproduction have been accumulated, and more can be expected in the future in facilities such as JLab 12 GeV. It makes it possible to investigate the decay of a nucleon resonance into another nucleon resonance. Purpose: The possibility to research the decay of the N(2120) to nucleon resonances near 1.7 GeV in the three- pion photoproduction will be explored to provide useful information for future experimental study. Method: The pion and radiative decay amplitudes of nucleon resonances are studied within the constituent quark model, which is used to calculate the couplings constants, especially for the decay of a nucleon resonance near 2.1 GeV to another nucleon resonance near 1.7 GeV. The three- pion photoproduction off the neutron target, i.e.,gamma n -> pi(-) pi(-) Delta(++) -> pi(-) pi(-) pi(+)p, is investigated based on the effective Lagrangian method with the coupling constant obtained form the decay amplitudes. Results: The resonance contribution with a state N((PM)-P-2)3/2(-) near 2.1 GeV decaying to a state N((PM)-P-4)5/2(-) near 1.7 GeV, i.e., N(2120) -> N(1675) pi, is dominant in the process considered. The total cross section from the resonance contribution is at the order of 1 mu b and can be easily distinguished from the background. Conclusions: Our results suggest it is practicable to research the decay of the N(2120) to the N(1675) in experiment.
2015
卷号91期号:6页码:65202
学科领域Physics
DOIhttp://dx.doi.org/10.1103/PhysRevC.91.065202
收录类别SCI
项目资助者Major State Basic Research Development Program in China [2014CB845400] ; Major State Basic Research Development Program in China [2014CB845400] ; Major State Basic Research Development Program in China [2014CB845400] ; Major State Basic Research Development Program in China [2014CB845400] ; National Natural Science Foundation of China [11275235, 11035006, 11175220] ; National Natural Science Foundation of China [11275235, 11035006, 11175220] ; National Natural Science Foundation of China [11275235, 11035006, 11175220] ; National Natural Science Foundation of China [11275235, 11035006, 11175220] ; Chinese Academy of Sciences [KJCX2-EW-N01, Y101020BR0] ; Chinese Academy of Sciences [KJCX2-EW-N01, Y101020BR0] ; Chinese Academy of Sciences [KJCX2-EW-N01, Y101020BR0] ; Chinese Academy of Sciences [KJCX2-EW-N01, Y101020BR0]
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20959
专题理论物理所科研产出_SCI论文
通讯作者He, J (reprint author), Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China.
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GB/T 7714
Huang, Y,He, J,Chen, XR,et al. Theoretical investigation of the decay of the N(2120) resonance to nucleon resonances near 1.7 GeV[J]. PHYSICAL REVIEW C,2015,91(6):65202.
APA Huang, Y.,He, J.,Chen, XR.,Wang, R.,Xie, JJ.,...&He, J .(2015).Theoretical investigation of the decay of the N(2120) resonance to nucleon resonances near 1.7 GeV.PHYSICAL REVIEW C,91(6),65202.
MLA Huang, Y,et al."Theoretical investigation of the decay of the N(2120) resonance to nucleon resonances near 1.7 GeV".PHYSICAL REVIEW C 91.6(2015):65202.
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