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Xie, JJ; Liu, BC; Xie, JJ (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions
Source PublicationPHYSICAL REVIEW C
Language英语
KeywordPair Production Collisions Particles Threshold Nucleon
AbstractWe investigate the Lambda(1520) hadronic production in the pp -> pK(+)Lambda(1520) and pi(-) p -> K-0 Lambda(1520) reactions within the effective Lagrangian method. For the pi(-) p -> K-0 Lambda(1520) reaction, in addition to the "background" contributions from t-channel K* exchange, u-channel Sigma(+) exchange, and s-channel nucleon pole terms, we also consider the contribution from the nucleon resonance N*(2080) (spin-parity J(P) = 3/2(-)), which has significant coupling to the K Lambda(1520) channel. We show that the inclusion of the N*(2080) leads to a fairly good description of the low-energy experimental total cross section data of the pi(-) p -> K-0 Lambda(1520) reaction. From fitting to the experimental data, we get the N*(2080)N pi coupling constant g(N*(2080)N pi) = 0.14 +/- 0.04. By using this value, and with the assumption that the excitation of N*(2080) is due to the pi(0)-meson exchanges, we calculate the total and differential cross sections of the pp -> pK(+)Lambda(1520) reaction. We also demonstrate that the invariant mass distribution and the Dalitz plot provide direct information of the Lambda(1520) production, which can be tested by future experiments.
2013
ISSN0556-2813
Volume87Issue:4Pages:45210
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11105126, 10905046]; CAS Theoretical Physics Center for Science Facilities ; National Natural Science Foundation of China [11105126, 10905046]; CAS Theoretical Physics Center for Science Facilities ; National Natural Science Foundation of China [11105126, 10905046]; CAS Theoretical Physics Center for Science Facilities ; National Natural Science Foundation of China [11105126, 10905046]; CAS Theoretical Physics Center for Science Facilities
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15377
Collection理论物理所科研产出_SCI论文
Corresponding AuthorXie, JJ (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
Recommended Citation
GB/T 7714
Xie, JJ,Liu, BC,Xie, JJ . Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions[J]. PHYSICAL REVIEW C,2013,87(4):45210.
APA Xie, JJ,Liu, BC,&Xie, JJ .(2013).Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions.PHYSICAL REVIEW C,87(4),45210.
MLA Xie, JJ,et al."Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions".PHYSICAL REVIEW C 87.4(2013):45210.
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