A method for research on behaviour of a dimesoatomic wave function at small distances
نویسنده
چکیده
The Schrödinger equation discribing the local potential model of a strong ππ-interaction was studied. The influence of the strong ππ-interaction of the behaviour of pionium nS-state wave functions at small distances is studied both analytically (perturbatively) and numerically. It is shown that in the whole the accounting of strong interaction results in multiplying pure Coulomb pionium wave functions by some function is practically independent of the value of the principal quantum number n. Due to this reason, the n-independence of probability of ππ-atom production in nS-state remains the same as in the case of a pure Coulomb ππ-interaction. PACS: 36.10.Gv; 13.75.Lb; 03.65.Ge; 02.60.Cb; 02.60.Lj 1991 MSC: 65J15; 65H20
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