Original scientific paper

Nonleptonic effective weak Hamiltonian and QCD corrections

H. Galić ; ”Ruđer Bošković” Institute, Zagreb, Croatia, Yugoslavia
B. Guberina ; Max-Planck-Institut fur Physik und Astrophysik, Munich, F. R. Germany
I. Picek ; ”Ruđer Bošković” Institute, Zagreb, Croatia, Yugoslavia
D. Tadić ; Zavod za teorijsku fiziku, Prirodoslovno-matematički fakultet, University of Zagreb, Croatia, Yugoslavia
J. Trampetić ; ”Ruđer Bošković” Institute, Zagreb, Croatia, Yugoslavia

Abstract

We present a systematic calculation of the nonleptonic effective weak Hamiltonian based on the Weinberg-Salam model containing four or six quarks. We write out explicitly and discuss the following sectors of the effective weak Hamiltonian: the ∆ S = 1, ∆ C = 0 sector (including C P violation), the parity-violating ∆ S = 0, ∆ C = 0 sector and the ∆ S = 1, ∆ C = 1 sector. Our presentation includes a simple rule for the calculation of quantum-chromodynamics renormalisation effects when flavour-symmetry breaking is considered. We also discuss the theoretical foundation of quantum-chromodynamics corrections and experimental consequences.

Keywords

Hrčak ID:

327676

URI

https://hrcak.srce.hr/327676

Publication date:

4.8.1980.

Article data in other languages: croatian

Visits: 421 *