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Ecker, Gerhard; Pich Zardoya, Antonio; Rafael, Eduardo de | |||
Aquest document és un/a article, creat/da en: 1987 | |||
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The decays K L,S --> pi 0gammagamma are calculated within the framework of chiral perturbation theory. The amplitude for K L --> pi 0gammagamma is found to be finite at the one-loop level yielding a branching ratio of 6.8 × 10 -7. The decay spectra of both decays are very characteristic and provide good tests of the effective chiral symmetry realization of the standard model. | |||
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