https://doi.org/10.1051/epjconf/201611305017
Recoil corrections in antikaon-deuteron scattering
1 Helmholtz–Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany
2 Institut für Theoretische Physik II, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
3 Institute for Theoretical and Experimental Physics, 117218, B. Cheremushkinskaya 25, Moscow, Russia
a e-mail: mai@hiskp.uni-bonn.de
b e-mail: vadimb@tp2.rub.de
c e-mail: evgeny.epelbaum@ruhr-uni-bochum.de
d e-mail: rusetsky@hiskp.uni-bonn.de
Published online: 25 March 2016
Using the non-relativistic effective field theory approach for K−d scattering, it is demonstrated that a systematic perturbative expansion of the recoil corrections in the parameter ξ = MK/mN is possible in spite of the fact that K−d scattering at low energies is inherently non-perturbative due to the large values of the K̄N scattering lengths. The first order correction to the K−d scattering length due to single insertion of the retardation term in the multiple-scattering series is calculated. The recoil effect turns out to be reasonably small even at the physical value of MK/mN ≃ 0:5.
© Owned by the authors, published by EDP Sciences, 2016
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