Adiabatic hyperspherical approach to describing low-energy mesic-atom scattering

The adiabatic hyperspherical approach developed previously is used to describe the asymmetric mesic-atom scattering a mu + b --> a mu + b, a + b mu (a, b = p, d, t) in the collision-energy range 10(-3) less than or equal to epsilon less than or equal to 10(2) eV. Boundary conditions for J not equal 0 scattering states are formulated, and partial cross sections for J = 0-3 are calculated. Effective numerical codes are developed, and a fast convergence of the adiabatic hyperspherical approach is demonstrated: to achieve a precision of about 1% in the calculated cross sections, it is sufficient to use a basis of not snore than ten adiabatic hyperspherical functions. The results that we obtained are compared with the previous ones. (C) 2001 MAIK "Nauka/Interperiodica".