A Λnn three-body resonance

A Λnn three-body resonance
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Λnn三体共振

DOI:
10.1051/epjconf/201611307004
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发表时间:
2016
期刊:
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影响因子:
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通讯作者:
M. Yamaguchi
M. Yamaguchi
中科院分区:
--
文献类型:
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作者:
H. Kamada;K. Miyagawa;M. Yamaguchi

文献摘要

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我们求解了Λnn系统中的Faddeev方程Jπ=1/2+,T=1)。没有束缚态,但发现了共振态。复能量方法有助于确定共振能量在复黎曼片中的位置。利用NN和Yn Nijmegen势,我们得到了共振能E=0.25MeV−0.40I MeV。初步结果表明,最近的奈梅根YN势(NSC97f)为0.60±0.05-(0.25±0.05)I MeV。我们讨论了一个不可约的三体力使其受到约束的重要性。
We solved the Faddeev equations in the Λ nn system J π = ½ + , T = 1). There is no bound state but found a resonance state. Complex Energy Method helps to find the location of the resonance energy in the complex Riemann sheet. We obtained a resonance energy E = 0.25 − 0.40 i MeV using the realistic NN and YN Nijmegen potential. As a preliminary result the recent Nijmegen YN potential (NSC97f) gives 0.60± 0.05 - (0.25 ± 0.05) i MeV. We discuss importance of an irreducible three-body force to make it bound.