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Energy and decay width of the pi-K atom

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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http://hal.in2p3.fr/in2p3-00077319
Contributor : Suzanne Robert <>
Submitted on : Tuesday, May 30, 2006 - 12:49:52 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:31 PM

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

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