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The K^- alpha scattering length and the reaction dd o alpha K^+ K^- | V. Yu. Grishina
; L.A. Kondratyuk
; A. Sibirtsev
; M. Büscher
; S. Krewald
; U.-G. Mei{ss}ner
; F.P. Sassen
; | Date: |
30 Mar 2005 | Journal: | Eur.Phys.J. A25 (2005) 159-164 DOI: 10.1140/epja/i2005-10089-y | Subject: | nucl-th hep-ph nucl-ex | Abstract: | We present predictions for the the K^- alpha scattering length obtained within the framework of the multiple scattering approach. Evaluating the pole position of the K^- alpha scattering amplitude within the zero range approximation, we find a loosely bound K^- alpha state with a binding energy of E_R = -2 ... -7 MeV and a width Gamma_R = 11 ... 18 MeV. We propose to measure the K^- alpha scattering length through the final state interaction between the alpha and K^- meson produced in the reaction dd o alpha K^+ K^-. It is found that the K^-alpha invariant mass distribution from this reaction at energies near the threshold provides a new tool to determine the s-wave K^- alpha scattering length. | Source: | arXiv, nucl-th/0503076 | Services: | Forum | Review | PDF | Favorites |
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