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2004

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/11010

Lamda N -> NN weak interaction in effective-field theory

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http://dx.doi.org/10.1103/PhysRevC.70.051601

Abstract

The nonleptonic weak ∣ Δ S ∣ = 1 Λ N interaction, responsible for the dominant nonmesonic decay of all but the lightest hypernuclei, is studied in the framework of an effective-field theory. The long-range physics is described through tree-level exchange of the SU(3) Goldstone bosons, while the short-range potential is parametrized in terms of the lowest-order contact terms. We obtain reasonable fits to available weak hypernuclear decay rates and quote the values for the parity-violating asymmetry as predicted by the present effective-field theory.

Subject

Reaccions nuclears, Estructura nuclear, Interaccions febles (Física nuclear)

Subject (English)

Nuclear reactions, Nuclear structure, Weak interactions (Nuclear physics)

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

PARREÑO GARCÍA, Assumpta, BENNHOLD, Cornelius and HOLSTEIN, B. R. Lamda N -> NN weak interaction in effective-field theory. Physical Review C. 2004. Vol. 70, num. núm 5, pags. 051601-1(R)-051601-5(R). ISSN 0556-2813. [consulted: 7 of August of 2026]. Available at: https://hdl.handle.net/2445/11010

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