Pionic weak decay of the lightest double-Λ hypernucleus ΛΛ4H
Pionic weak decay of the lightest double-Λ hypernucleus ΛΛ4H
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最轻双Λ超核ΛΛ4H的π离子弱衰变
DOI：
10.1103/physrevc.66.014003
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发表时间：
2002
影响因子：
3.1
通讯作者：
S. Okabe
中科院分区：
文献类型：
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作者：
I. Kumagai;S. Okabe
对LL 4 H的弱p2衰变进行了理论分析，并与最近的BNL-E906实验进行了比较.计算了LL 4 H的两体p2衰变宽度为0.6 9 GL，其衰变分支比约为2 5%。伴随着一个L粒子的衰变通道的分支比约为43%的总p2衰变。计算得到的LL 4 H的p2谱在连续区100 MeV/c附近有一个宽峰，与实验结果不一致。重新分析了104 MeV/ c峰内的其它可能衰变，即L3 H和L 6 He的L -超核对衰变，它们衰变到6Li的激发态.
The weak p 2 decay of LL 4 H is theoretically analyzed and compared with a recent BNL-E906 experiment. The two-body p 2 decay width of LL 4 H is calculated to be 0.69 G L , and its branching ratio to the total p 2 decay is determined to be about 25%. The branching ratio of decay channels accompanied by a L particle to the total p 2 decay is about 43%. The calculated p 2 spectrum of LL 4 H has a broad peak around 100 MeV/ c in the nuclear continuum region, whose value is inconsistent with the experimental result of a peak structure around 104 MeV/ c . The other possible decays within the 104 MeV/ c peak are reanalyzed, that is L -hypernuclear pair decays of L 3 H and L 6 He, which decay into excited states of 6 Li.
影响因子：
8.6
作者：
H. Takahashi;C. Kim;K. Oyama;A. Ichikawa;B. Bassalleck;M. Ieiri;J. H. Chung;T. Kouketsu;
通讯作者：
H. Takahashi;C. Kim;K. Oyama;A. Ichikawa;B. Bassalleck;M. Ieiri;J. H. Chung;T. Kouketsu;
M. Kamimura：《物理评论 A》
DOI：
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