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arXiv · hep-ph/0605253

Energy and decay width of the pi-K atom

H. Jallouli·H. Sazdjian
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Abstract

The energy and decay width of the pi-K atom are evaluated in the framework of the quasipotential-constraint theory approach. The main electromagnetic and isospin symmetry breaking corrections to the lowest-order formulas for the energy shift from the Coulomb binding energy and for the decay width are calculated. They are estimated to be of the order of a few per cent. We display formulas to extract the strong interaction S-wave pi-K scattering lengths from future experimental data concerning the pi-K atom.

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H. Jallouli, H. Sazdjian. 2006-05-24. Energy and decay width of the pi-K atom. https://doi.org/10.1140/epjc%2Fs10052-006-0076-7

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