Tensor interactions and polarization phenomena in heavy-ion scattering

Effects ofLi6excitation inZnBowsher1, Clegg2, Karwowski3 et al. 1992Phys. Rev. C8010View full textAdd to dashboardCite

“…As with the deuteron-and a-nucleus potentials, used as input to the coupled-channels calculations, the Cook potential was derived by fitting higherenergy elastic-scattering data. [31] and Ohnishi et al [32]. In the present work we have, for the first time, extended the application of this same three-body cluster model to the treatment of (d, Li) …”

“…In terms of the complete set of states of d+a relative motion introduced above, the wave function gL+;x'(R, r) -we use outgoing-wave boundary conditions for clarity -can be expanded as As constructed, these intrinsic bin states 4&;(r) and the Li ground state form an orthonormal square-integrable set of states (14) with the result that the coupled-channels calculation can be carried out using conventional techniques. [31,32]. For generality we thus include the renormalization factors Nz and Nl for the real and imaginary parts; however, unless stated otherwise, these are set to unity.…”

R-matrix and dynamical model calculations of three-body resonance decay widths

“…[19,20]. In fact both potentials (i) and (ii) were found to be of the wrong depth, in the sense that they did not generate a 6 He (2 + ) resonance, for the 4 He + 2 n system in a relative d wave, at the resonance energy of 0.824 MeV above threshold.…”

“…Clear also is that the dineutron interaction is the limiting potential for a maximally spatially correlated n + n pair, with |φ nn | 2 = δ(r) in Eq. (20).…”

Polarization phenomena in hyperon-nucleon scattering

“…Such characteristics of the angular dependence will be understood by the plane-wave Born approximation as demonstrated in Ref. [16], where the matrix element of the coordinate-space tensor in Eq. (3) is given as…”