ΛΛ6He as a ΛΛ interaction constraint

ΛΛbond energy from the Nijmegen potentials

“…Actually, in Refs. [17,30] the potential is adjusted for each coupled-channel case to reproduce a common value of the scattering length. Therefore, part of the coupling effect is embedded in the readjusted parameters.…”

“…This is apparently different from the results shown in Refs. [17,30] but, as mentioned before, in these later works the interaction is readjusted in each coupled-channel calculation to reproduce a common value of the scattering length.…”

“…As discussed in detail in Ref. [17], Pauli blocking reduces substantially the additional attraction to the ⌳⌳ binding energy induced by the ⌳⌳ → ⌶N conversion. Recently, an attempt to incorporate the Pauli suppression effect has been made in Ref.…”

“…From the resulting ⌳⌳ binding energies, a quite large ⌳⌳ bond energy of around 4 to 5 MeV emerged, contrary to expectations from SU(3) [5]. A series of theoretical works, based either on phenomenological S =−2 baryon-baryon interactions or realistic ones, have studied the properties of double-⌳ hypernuclei for more than 30 years [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23].…”

Hyperonic mixing in five-baryon double-strangeness hypernuclei in a two-channel treatment

“…With meson-exchange coupling potentials, probabilities of Ξ admixtures less than 1% were obtained. Contributions of the coupling to the binding energies are as small as several tenths of MeV except the case of extremely strong ΛΛ attraction providing ΛΛ bound state [16,18], when the contribution can reach several MeV. Much larger coupling has been obtained [17] within a quark model predicting free bound H dibaryon.…”