ハイパートリトン
ハイパートリトンは陽子と中性子とΛ粒子から成る３体系です。
科研費 「少数系の厳密計算に基づくストレンジネス核物理」令和４年〜令和６年
ハイパートリトンのエネルギー準位
２π交換３体力によって束縛エネルギーが減少する。
Faddeev calculation of hypertriton incorporating the 2π-exchange ΛNNinteraction
Λｄ散乱
Calculated Λ-deuteron s-wave phase shifts as a function of Ecm. The left (right) vertical scale is for the real (imaginary) part. The upper (lower) panel shows the phase shifts in the J = 1/2 (J = 3/2) channel. The solid (dashed) curves are for the chiral NLO19 (NLO13) Y N interaction of the Juelich-Bonn group with the chiral N4LO+ NN interaction. The solid and dashed curves are almost indistinguishable in the case of J = 1/2. The cutoff scale is 550 MeV for both NN and Y N interactions.
Faddeev calculations of low-energy Λ-deuteron scatteringand momentum correlation function
