Publication Date
2005
Journal or Book Title
NUCLEAR PHYSICS A
Abstract
The 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.
Pages
127C-136C
Volume
754
Recommended Citation
Parreno, A; Bennhold, C; and Holstein, BR, "An EFT for the weak Lambda N interaction" (2005). NUCLEAR PHYSICS A. 280.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/280
Comments
This is the pre-published version which is collected from arXiv. The published version is at http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVB-4FBHW8X-2&_user=1516330&_coverDate=05%2F30%2F2005&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1534224251&_rerunOrigin=google&_acct=C000053443&_version=1&_urlVersion=0&_userid=1516330&md5=d4a2b8ba730851934dc2368f3902ebe6&searchtype=a