Structure of Be Λ 10 studied with the four-body cluster model

Y. Zhang; E. Hiyama; Y. Yamamoto

doi:10.1016/j.nuclphysa.2012.02.007

Structure of Be _Λ ¹⁰ studied with the four-body cluster model

Y. Zhang, E. Hiyama, Y. Yamamoto

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16 Citations (Scopus)

Abstract

Energy levels of the hypernucleus Be _Λ ¹⁰ within the framework of an α+α+ _Λ+n four-body cluster model are calculated. Interactions between the constituent subunits are determined so as to reproduce reasonably well the observed low-energy properties of the αα, αN, α _Λ, αα _Λ and ααN subsystems. Furthermore, the two-body _ΛN interaction is adjusted so as to reproduce the 0 ⁺-1 ⁺ splitting of H _Λ ⁴. The _Λ separation energies of positive parity states are smaller than those of negative parity states. As a result, there occurs level inversion between 0 ⁺, 1 ₁ ⁺ states and 3 ^- and 2 ₂ ^- states.

Original language	English
Pages (from-to)	288-297
Number of pages	10
Journal	Nuclear Physics A
Volume	881
DOIs	https://doi.org/10.1016/j.nuclphysa.2012.02.007
Publication status	Published - May 1 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.nuclphysa.2012.02.007

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title = "Structure of Be Λ 10 studied with the four-body cluster model",

abstract = "Energy levels of the hypernucleus Be Λ 10 within the framework of an α+α+ Λ+n four-body cluster model are calculated. Interactions between the constituent subunits are determined so as to reproduce reasonably well the observed low-energy properties of the αα, αN, α Λ, αα Λ and ααN subsystems. Furthermore, the two-body ΛN interaction is adjusted so as to reproduce the 0 +-1 + splitting of H Λ 4. The Λ separation energies of positive parity states are smaller than those of negative parity states. As a result, there occurs level inversion between 0 +, 1 1 + states and 3 - and 2 2 - states.",

author = "Y. Zhang and E. Hiyama and Y. Yamamoto",

year = "2012",

month = may,

day = "1",

doi = "10.1016/j.nuclphysa.2012.02.007",

language = "English",

volume = "881",

pages = "288--297",

journal = "Nuclear Physics A",

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T1 - Structure of Be Λ 10 studied with the four-body cluster model

AU - Zhang, Y.

AU - Hiyama, E.

AU - Yamamoto, Y.

PY - 2012/5/1

Y1 - 2012/5/1

N2 - Energy levels of the hypernucleus Be Λ 10 within the framework of an α+α+ Λ+n four-body cluster model are calculated. Interactions between the constituent subunits are determined so as to reproduce reasonably well the observed low-energy properties of the αα, αN, α Λ, αα Λ and ααN subsystems. Furthermore, the two-body ΛN interaction is adjusted so as to reproduce the 0 +-1 + splitting of H Λ 4. The Λ separation energies of positive parity states are smaller than those of negative parity states. As a result, there occurs level inversion between 0 +, 1 1 + states and 3 - and 2 2 - states.

AB - Energy levels of the hypernucleus Be Λ 10 within the framework of an α+α+ Λ+n four-body cluster model are calculated. Interactions between the constituent subunits are determined so as to reproduce reasonably well the observed low-energy properties of the αα, αN, α Λ, αα Λ and ααN subsystems. Furthermore, the two-body ΛN interaction is adjusted so as to reproduce the 0 +-1 + splitting of H Λ 4. The Λ separation energies of positive parity states are smaller than those of negative parity states. As a result, there occurs level inversion between 0 +, 1 1 + states and 3 - and 2 2 - states.

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DO - 10.1016/j.nuclphysa.2012.02.007

M3 - Article

AN - SCOPUS:84862822394

SN - 0375-9474

VL - 881

SP - 288

EP - 297

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -

Structure of Be _Λ ¹⁰ studied with the four-body cluster model

Abstract

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