K. Miyagawa

Addendum to triton and hypertriton binding energies calculated from SU{sub 6} quark-model baryon-baryon interactions

Previously we calculated the binding energies of the triton and hypertriton, using an SU{sub 6} quark-model interaction obtained by a resonating-group method of two baryon clusters. In contrast to the previous calculations employing the energy-dependent interaction kernel, we present new results using a renormalized interaction that is energy-independent and still preserves all the two-baryon data. The new binding energies are slightly smaller than the previous values. In particular the triton binding energy turns out to be 8.14 MeV with a charge-dependence correction of the two-nucleon force, 190 keV, being included. This indicates that the energy to be accounted for by three-body forces is about 350 keV.

Polarization observables in exclusive kaon photoproduction on the deuteron

Single and double polarization observables for kaon photoproduction on the deuteron are studied theoretically with modern hyperon-nucleon forces. The kinematical region of the kaon scattered forward with large momentum is thoroughly investigated where either the quasifree scattering leading to the kaon and hyperon or the final-state interaction between hyperon and nucleon are expected. The quasifree scatterings show characteristic peaks in the inclusive cross sections. The final-state interaction effects are significant, especially around the

Triton binding energy calculated from the SU6 quark-model nucleon-nucleon interaction

\ensuremath{\Lambda}N

Faddeev calculation of the hypertriton using the SU6 quark-model nucleon-nucleon and hyperon-nucleon interactions

and

Faddeev calculation of 3 alpha and alpha alpha Lambda systems using alpha alpha resonating-group method kernels

\ensuremath{\Sigma}N

Spin-orbit splitting of Be-9(Lambda) excited states studied with the SU6 quark-model baryon-baryon interactions

thresholds. The double polarization

ΛN scattering length from the reaction γd→K+Λn

{C}_{z}

Faddeev calculation of He-6(Lambda Lambda) using SU6 quark-model baryon-baryon interactions

is found to be sensitive to the final-state interaction effects. Precise data would help to clarify the property of the

Nonmesonic weak decay of the hypertriton

\ensuremath{\Lambda}N\text{\ensuremath{-}}\ensuremath{\Sigma}N

Lambda N scattering length from the reaction gamma d -> K+Lambda n

interaction and also help to extract the information on the elementary amplitude from the quasifree scattering region.