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He, J; Lu, PL; He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Div Theoret Phys, Lanzhou 730000, Peoples R China.
The octet meson and octet baryon interaction with strangeness and the Lambda(1405)
Source PublicationINTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS
Language英语
KeywordOctet Meson And Baryon Interaction Lambda(1405) Bethe-salpeter Equation
AbstractThe octet meson and baryon interaction with strangeness S = -1 is studied fully relativistically with chiral Lagrangian. In this paper, a Bethe-Salpeter equation (BSE) approach with spectator quasipotential approximation is applied to study the reactions K- p -> MB with MB = K(-)p, (K) over bar (0)n, pi(-)Sigma(+), pi(0)Sigma(0), pi(+)Sigma(-) and eta Lambda with all possible partial waves and theoretical results are comparable with experimental data. It is found that the Weinberg-Tomozawa potential derived from the lowest order chiral Lagrangian only provides the contributions from partial waves with spin-parities JP = 1/2(+) and 1/2(-). Two-pole structure of the Lambda(1405) is confirmed with poles at 1383 + 99i and 1423 + 14i MeV. The lower and higher poles originate from Sigma pi interaction as a resonance and (K) over barN interaction as a bound state, respectively.
2015
Volume24Issue:11Pages:1550088
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1142/S0218301315500883
Indexed BySCI
Funding OrganizationMajor State Basic Research Development Program in China [2014CB845405] ; Major State Basic Research Development Program in China [2014CB845405] ; Major State Basic Research Development Program in China [2014CB845405] ; Major State Basic Research Development Program in China [2014CB845405] ; National Natural Science Foundation of China [11275235] ; National Natural Science Foundation of China [11275235] ; National Natural Science Foundation of China [11275235] ; National Natural Science Foundation of China [11275235]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/20805
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHe, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Div Theoret Phys, Lanzhou 730000, Peoples R China.
Recommended Citation
GB/T 7714
He, J,Lu, PL,He, J . The octet meson and octet baryon interaction with strangeness and the Lambda(1405)[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS,2015,24(11):1550088.
APA He, J,Lu, PL,&He, J .(2015).The octet meson and octet baryon interaction with strangeness and the Lambda(1405).INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS,24(11),1550088.
MLA He, J,et al."The octet meson and octet baryon interaction with strangeness and the Lambda(1405)".INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS 24.11(2015):1550088.
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