Sigma resonances from K- N -> pi Lambda reactions with center-of-mass energies from 1550 to 1676 MeV
Gao PZ(高溥泽); Shi J(史君); 邹冰松;Gao, PZ; Shi, J; Zou, BS
刊名PHYSICAL REVIEW C
2012
卷号86期号:2页码:25201
学科分类Physics
DOI10.1103/PhysRevC.86.025201
英文摘要For the study of the Sigma resonances, we analyze the differential cross sections and Lambda polarizations for the reactions K- n -> pi(-) Lambda and K- p -> pi(0)Lambda with an effective Lagrangian approach. Data of an early experiment and the recent Crystal Ball experiment at BNL are included in the analysis with the c. m. energy from 1550 to 1676 MeV. Our results clearly support the existence of a Sigma resonance with J(P) = 1/2(+), mass near 1633 MeV, and width about 120 MeV, which confirms the three-star Sigma(1660)1/2(+) in PDG. Meanwhile, our results do not support the existence of the two-star Sigma(1620)1/2(-) in PDG. The analysis results for the parameters of the relevant Sigma resonances and couplings are presented.
收录类别SCI
WOS记录号WOS:000307803700002
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被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224512
专题中国科学院高能物理研究所_理论物理室_期刊论文
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Gao PZ,Shi J,邹冰松;Gao, PZ,et al. Sigma resonances from K- N -> pi Lambda reactions with center-of-mass energies from 1550 to 1676 MeV[J]. PHYSICAL REVIEW C,2012,86(2):25201.
APA 高溥泽,史君,邹冰松;Gao, PZ,Shi, J,&Zou, BS.(2012).Sigma resonances from K- N -> pi Lambda reactions with center-of-mass energies from 1550 to 1676 MeV.PHYSICAL REVIEW C,86(2),25201.
MLA 高溥泽,et al."Sigma resonances from K- N -> pi Lambda reactions with center-of-mass energies from 1550 to 1676 MeV".PHYSICAL REVIEW C 86.2(2012):25201.
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