Complete analytical solution to the quantum Yukawa potential

Abstract

We present a complete analytical solution to the quantum problem of a particle in the Yukawa potential, using supersymmetry and a systematic expansion of the corresponding super-potentials. Results for the critical screening of the ground state improve in several figures existing results based on both numerical solutions and approximation methods. Our calculation to order $(a_0/D{)}^2$ for the squared ground state wavefunction at the origin, which enter in darkonium transitions, yields a correction of ${\pi }^4/216$ to results based on variational techniques.

Updated published version, 5 pages, one figure added, 1 figure updated, notation changed

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• WIMPonium and Boost Factors for Indirect Dark Matter Detection
• Effects of Bound States on Dark Matter Annihilation
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