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Journal Articles European Physical Journal C: Particles and Fields Year : 2006

Energy and decay width of the pi-K atom

H. Jallouli
  • Function : Author
H. Sazdjian

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.

Dates and versions

in2p3-00077319 , version 1 (30-05-2006)

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H. Jallouli, H. Sazdjian. Energy and decay width of the pi-K atom. European Physical Journal C: Particles and Fields, 2006, 48, pp.561-578. ⟨10.1140/epjc/s10052-006-0076-7⟩. ⟨in2p3-00077319⟩
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