AN -> NN weak interaction in effective-field theoryPHYSICAL REVIEW C
AbstractThe nonleptonic weak ∣ΔS∣=1 ΛN 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.
Citation InformationA Parreno, C Bennhold and BR Holstein. "AN -> NN weak interaction in effective-field theory" PHYSICAL REVIEW C Vol. 70 Iss. 5 (2004)
Available at: http://works.bepress.com/barry_holstein/106/