Lattice calculation of weak matrix elements

C. Bernard, T. Draper, G. Hockney, A. M. Rushton, A. Soni

Research output: Contribution to journalArticlepeer-review

67 Scopus citations


We present the first results from a small-lattice (63 × 10) calculation of nonleptonic weak matrix elements. The 12 rule is studied as a test case. For a lattice meson of approximately the kaon mass we find a significantly enhanced I=12 amplitude and a I=32 amplitude compatible with zero within our statistics. The dominance of the I=12 amplitude appears to be due to a class of graphs called the eye graphs. Qualitatively similar results are found whether or not the charm quark is integrated out ab initio. We also report preliminary results on other weak matrix elements.

Original languageEnglish
Pages (from-to)2770-2773
Number of pages4
JournalPhysical Review Letters
Issue number25
StatePublished - 1985

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Lattice calculation of weak matrix elements'. Together they form a unique fingerprint.

Cite this