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题名: Reexamination of the role of the Delta* resonances in the pp -> nK(+)Sigma(+) reaction
作者: Wang, XY;  Cao, X;  Xie, JJ;  Chen, XR
刊名: PHYSICAL REVIEW C
出版日期: 2015
卷号: 92, 期号:1, 页码:15202
学科分类: Physics
DOI: http://dx.doi.org/10.1103/PhysRevC.92.015202
通讯作者: Cao, X (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
文章类型: Article
英文摘要: In this work, the role of the Delta* resonances in the process of pp -> nK(+)Sigma(+) are systematically investigated with the effective Lagrangian approach and the isobar model. We find that a P-31 state, either Lambda*(1750) or Lambda*(1910) is favored by the data while the P-33 state, namely Delta*(1920), has small contribution. Besides, either the subthreshold S-31 Delta*(1620) resonance or strong n Sigma final state interaction or both have a possible contribution at near threshold region, depending on the measured cross sections. We demonstrate the invariant mass distributions and the Dalitz plots in order to investigate whether it is possible to distinguish the controversial K Sigma production mechanism in these observables.
类目[WOS]: Physics, Nuclear
关键词[WOS]: REACTION NEAR-THRESHOLD ;  PARTIAL-WAVE ANALYSIS ;  HEAVY-ION COLLISIONS ;  PI-N ;  QUARK-MODEL ;  HYPERON PRODUCTION ;  BARYON SPECTRUM ;  KAON PRODUCTION ;  CHROMODYNAMICS ;  SCATTERING
收录类别: SCI
项目资助者: National Basic Research Program (973 Program) [2014CB845406] ;  National Natural Science Foundation of China [11347156, 11405222, 11105126, 11475227] ;  One Hundred Person Project of Chinese Academy of Sciences [Y101020BR0]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20930
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Wang, XY,Cao, X,Xie, JJ,et al. Reexamination of the role of the Delta* resonances in the pp -> nK(+)Sigma(+) reaction[J]. PHYSICAL REVIEW C,2015,92(1):15202.
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