An EFT for the weak Lambda N interactionNUCLEAR PHYSICS A
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 (π and K), while the short-range potential is parametrized in terms of lowest-order contact terms obtained from the most general non-derivative local four-fermion interaction. Fitting to available weak hypernuclear decay rates for 5ΛHe, 11ΛB and 12ΛC yields reasonable values for the low-energy constants.
Citation InformationA Parreno, C Bennhold and BR Holstein. "An EFT for the weak Lambda N interaction" NUCLEAR PHYSICS A Vol. 754 (2005)
Available at: http://works.bepress.com/barry_holstein/21/