6533b827fe1ef96bd1287620
RESEARCH PRODUCT
K 0 --> pi 0 gammagamma decays in chiral perturbation theory
Gerhard EckerAntonio Pich ZardoyaEduardo De Rafaelsubject
FísicaHigh Energy Physics::Experimentdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1987-01-01 |