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Constraints on effective field theory parameters for the Lambda N -> NN transition
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The relation between the low-energy constants appearing in the effective field theory description of the Lambda N -> NN transition potential and the parameters of the one-meson-exchange model previously developed is obtained. We extract the relative importance of the different exchange mechanisms included in the meson picture by means of a comparison to the corresponding operational structures appearing in the effective approach. The ability of this procedure to obtain the weak baryon-baryon-meson couplings for a possible scalar exchange is also discussed.
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PÉREZ-OBIOL CASTAÑEDA, Axel, PARREÑO GARCÍA, Assumpta and JULIÁ-DÍAZ, Bruno. Constraints on effective field theory parameters for the Lambda N -> NN transition. Physical Review C. 2011. Vol. 84, num. 2, pags. 024606. ISSN 0556-2813. [consulted: 16 of October of 2026]. Available at: https://hdl.handle.net/2445/19682