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A Consistent Analysis of the Delta I = 1/2 Rule for K Decays

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Bardeen, William A. [Munich, Max Planck Inst.] Buras, A.J. [Munich, Max Planck Inst.] Gérard, Jean-Marc [UCL]

We calculate the hadronic matrix elements of local operators relevant to the K→ππ decays using the 1/N expansion. This approach permits a consistent treatment of both short-and long-distance effects. The latter provide important contributions to the enhancement and suppression of the Image and ΔI = 3/2 amplitudes, respectively. A satisfactory description of the observed data can be achieved within the standard model.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 1987
Language Anglais
Journal information "Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics" - Vol. 192, no. 1-2, p. 138-144 (1987)
Peer reviewed yes
Publisher Elsevier BV * North-Holland ((Netherlands) Amsterdam)
issn 0370-2693
Publication status Publié
Affiliations Munich, Max Planck Inst.
UCL - SST/IRMP - Institut de recherche en mathématique et physique
Links
Bibliographic reference Bardeen, William A. ; Buras, A.J. ; Gérard, Jean-Marc. A Consistent Analysis of the Delta I = 1/2 Rule for K Decays. In: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 192, no. 1-2, p. 138-144 (1987)
Permanent URL http://hdl.handle.net/2078.1/73903