Symmetric elastic and spin-flip low-energy collisions of the hydrogen-isotope mesic atoms in the adiabatic hyperspherical approach

Abstract

The reduced adiabatic hyperspherical (RAHS) basis suggested previously is used to calculate elastic and spin-flip cross sections in the processes (aμ)F+a → (aμ)F′+a, a=(p, d, t), for collision energies 10−3≤ɛ≤102 eV. The rapid convergence of the method is demonstrated: to achieve an accuracy of ⋍1% in the calculated cross sections, it is sufficient to use N≤10 of the basis RAHS functions. The comparison of the obtained results with the previous ones is presented.