Four-body structure of light Λ hypernuclei

E. Hiyama

doi:10.1016/j.nuclphysa.2013.05.011

Four-body structure of light Λ hypernuclei

E. Hiyama

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The structure of the ¹⁰_ΛBe and ¹⁰_ΛB with an α + α + Λ + N four-body model cluster model is studied. The two-body ΛN interaction is adjusted so as to reproduce the ^{0 +}-^{1 +} splitting of ⁴_ΛH. Also a phenomenological ΛN charge symmetry breaking (CSB) interaction is introduced. The ΛN CSB interaction works repulsively by +0.1MeV (attractively by -0.1MeV) in ¹⁰_ΛBe (¹⁰_ΛB). A neutron-rich Λ hypernucleus, ⁶_ΛH is studied within a framework of t + Λ + n + n four-body model. As long as we reproduce the energy and width of ⁵H within the error bar, then ground state of ⁶_ΛH is obtained as a resonant state.

Original language	English
Pages (from-to)	130-139
Number of pages	10
Journal	Nuclear Physics A
Volume	914
DOIs	https://doi.org/10.1016/j.nuclphysa.2013.05.011
Publication status	Published - Sept 2013
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.nuclphysa.2013.05.011

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title = "Four-body structure of light Λ hypernuclei",

abstract = "The structure of the 10ΛBe and 10ΛB with an α + α + Λ + N four-body model cluster model is studied. The two-body ΛN interaction is adjusted so as to reproduce the 0 +-1 + splitting of 4ΛH. Also a phenomenological ΛN charge symmetry breaking (CSB) interaction is introduced. The ΛN CSB interaction works repulsively by +0.1MeV (attractively by -0.1MeV) in 10ΛBe (10ΛB). A neutron-rich Λ hypernucleus, 6ΛH is studied within a framework of t + Λ + n + n four-body model. As long as we reproduce the energy and width of 5H within the error bar, then ground state of 6ΛH is obtained as a resonant state.",

author = "E. Hiyama",

year = "2013",

month = sep,

doi = "10.1016/j.nuclphysa.2013.05.011",

language = "English",

volume = "914",

pages = "130--139",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier B.V.",

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T1 - Four-body structure of light Λ hypernuclei

AU - Hiyama, E.

PY - 2013/9

Y1 - 2013/9

N2 - The structure of the 10ΛBe and 10ΛB with an α + α + Λ + N four-body model cluster model is studied. The two-body ΛN interaction is adjusted so as to reproduce the 0 +-1 + splitting of 4ΛH. Also a phenomenological ΛN charge symmetry breaking (CSB) interaction is introduced. The ΛN CSB interaction works repulsively by +0.1MeV (attractively by -0.1MeV) in 10ΛBe (10ΛB). A neutron-rich Λ hypernucleus, 6ΛH is studied within a framework of t + Λ + n + n four-body model. As long as we reproduce the energy and width of 5H within the error bar, then ground state of 6ΛH is obtained as a resonant state.

AB - The structure of the 10ΛBe and 10ΛB with an α + α + Λ + N four-body model cluster model is studied. The two-body ΛN interaction is adjusted so as to reproduce the 0 +-1 + splitting of 4ΛH. Also a phenomenological ΛN charge symmetry breaking (CSB) interaction is introduced. The ΛN CSB interaction works repulsively by +0.1MeV (attractively by -0.1MeV) in 10ΛBe (10ΛB). A neutron-rich Λ hypernucleus, 6ΛH is studied within a framework of t + Λ + n + n four-body model. As long as we reproduce the energy and width of 5H within the error bar, then ground state of 6ΛH is obtained as a resonant state.

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U2 - 10.1016/j.nuclphysa.2013.05.011

DO - 10.1016/j.nuclphysa.2013.05.011

M3 - Article

AN - SCOPUS:84883445926

SN - 0375-9474

VL - 914

SP - 130

EP - 139

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -

Four-body structure of light Λ hypernuclei

Abstract

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