Letter to the Editor

K → πππγ decay in a chiral Lagrangian approach

Svjetlana Fajfer ; Institut za fiziku Prirodno-matematičkog fakulteta, Sarajevo, Yugoslavia
Kenan Suruliz ; Institut za fiziku Prirodno-matematičkog fakulteta, Sarajevo, Yugoslavia

Abstract

We analyse K → nnnγ decay in tne framework of a chiral Lagrangian supplemented by the 1/N expansion. This process is dominated by the inner bremsstrahlung emission. The basic process K → nnnγ is well described within the chiral Lagrangian approach. It is necessary to introduce the higher-order interactions in order to obtain result close to the experimental one. In addition to the dominant part of the amplitude we determine direct emission part. For the calculation of decay width we make the cut in photon energy and obtain result in agreement with the experiment.

Keywords

Hrčak ID:

332267

URI

https://hrcak.srce.hr/332267

Publication date:

6.8.1990.

Article data in other languages: croatian

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