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The pi(-) p -> eta n reaction at low energies in a chiral constituent quark model
Zhong XH(钟显辉); Zhao Q(赵强); Zhong, XH; Zhao, Q; He, J; Saghai, B
2007
发表期刊PHYSICAL REVIEW C
卷号76期号:6页码:65205
通讯作者[Zhong, Xian-Hui ; Zhao, Qiang] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Zhao, Qiang] Univ Surrey, Dept Phys, Guildford GU2 7HX, Surrey, England ; [He, Jun ; Saghai, Bijan] CEA Saclay, DAPNIA SPhN, Lab Rech Lois Fondamentales Univers, F-91191 Gif Sur Yvette, France
摘要A chiral quark-model approach is extended to the study of the pi N scattering at low energies. The process of pi(-) p -> eta n near threshold is investigated. The model is successful in describing the differential cross sections and total cross section near the eta production threshold. The roles of the resonances in n <= 2 shells are clarified. Near threshold, the S(11)(1535) dominates the reactions, whereas the interferences from the S(11)(1650) turn out to be destructive around W less than or similar to 1.6 GeV. The D(13)(1520) is crucial to give correct shapes of the differential cross sections. The nucleon pole term contributions are significant. The P(11)(1710) plays an important role around the center-of-mass energy W=1.7 GeV, it is crucial to produce an enhancement in the region of W > 1.6 GeV as suggested by the data for total cross section. The t-channel is negligible in the reactions.
文章类型Article
学科领域Physics
DOI10.1103/PhysRevC.76.065205
研究领域[WOS]Physics
URL查看原文
语种英语
WOS类目Physics, Nuclear
WOS记录号WOS:000251987000055
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240737
专题理论物理室
作者单位中国科学院高能物理研究所
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Zhong XH,Zhao Q,Zhong, XH,et al. The pi(-) p -> eta n reaction at low energies in a chiral constituent quark model[J]. PHYSICAL REVIEW C,2007,76(6):65205.
APA 钟显辉,赵强,Zhong, XH,Zhao, Q,He, J,&Saghai, B.(2007).The pi(-) p -> eta n reaction at low energies in a chiral constituent quark model.PHYSICAL REVIEW C,76(6),65205.
MLA 钟显辉,et al."The pi(-) p -> eta n reaction at low energies in a chiral constituent quark model".PHYSICAL REVIEW C 76.6(2007):65205.
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