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Chiral anomaly route to the KL → π +π −γ decay

Krešimir Kumerički ; Department of Physics, Faculty of Science, University of Zagreb, POB 162, 10000 Zagreb, Croatia
Ivica Picek ; Department of Physics, Faculty of Science, University of Zagreb, POB 162, 10000 Zagreb, Croatia


Puni tekst: engleski pdf 259 Kb

str. 247-258

preuzimanja: 35

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Sažetak

The increasing body of experimental data motivates us to investigate a new contribution to the radiative KL → π +π −γ decay, which is O(p 4 ) within the framework of the chiral perturbation theory. The new contribution refers to the ∆S = 1 WZW action term, established recently for the direct, O(p 4 ), KL → γγ(−) decay amplitude. We present additional evidence in support of such flavour-changing generalization of the WZW action term as a viable parametrisation of the anomalous radiative non-leptonic kaon decays.

Ključne riječi

Hrčak ID:

303474

URI

https://hrcak.srce.hr/303474

Datum izdavanja:

3.9.1995.

Podaci na drugim jezicima: hrvatski

Posjeta: 151 *