Adiabatic hyperspherical approach to describing low-energy mesic-atom scattering |
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| Authors: | D I Abramov V V Gusev L I Ponomarev |
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| Institution: | (1) Russian Research Centre Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182, Russia;(2) St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034, Russia;(3) Institute for High Energy Physics, Protvino, Moscow oblast, 142284, Russia |
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| Abstract: | The adiabatic hyperspherical approach developed previously is used to describe the asymmetric mesic-atom scattering aμ+b → aμ+b, a+bμ (a, b=p, d, t) in the collision-energy range 10?3≤?≤102 eV. Boundary conditions for J≠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 more than ten adiabatic hyperspherical functions. The results that we obtained are compared with the previous ones. |
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