Coupled channel method for the ?-4He elastic and inelastic scattering

Abstract

Equations of the coupled channel method written in the momentum space are solved in the K-matrix approach. In this way we are able to consider simultaneously the elastic and inelastic pion-nuclear reactions. Calculated total elastic and total inelastic cross sections are given for several outgoing channels of the reaction 4He(Tr ,~z )4He*. The single-charge-exchange reaction on 4He is discussed.

Intermittent-Type Chaos in Nonsinusoidal Driven Oscillators

“…In our model we assume that all excited states are degenerate with the energy of the ground state. Nevertheless, the importance of T = 1 virtual excitations in low-energy x --~H~ scattering was confirmed by the explicit coupled-channels calculations of Gmitro and Mach (1979). They conclude that the excitations of isovector states are the most important multi-step processes that contribute to elastic T -~H~ scattering for energies E, 6 80 MeV.…”

Optical absorption of gamma-irradiated KTP crystals in the 0.9 — 2.5 μm range

“…It was shown by Mach (1979) that the form (4) leads to a Galilean-invariant OM and represents a (A + 1)-body alternative to the 'three-body' model postulated by Landau and Thomas (1978).…”