Measurement of the Decay KL -> Pi0 Gamma Gamma
| dc.creator | al, A. Alavi-Harati et. | |
| dc.creator | Collaboration, the KTeV | |
| dc.date | 1999-02-22 | |
| dc.date.accessioned | 2026-07-07T10:32:22Z | |
| dc.date.available | 2026-07-07T10:32:22Z | |
| dc.description | We report on a new measurement of the decay KL -> pi0 gamma gamma by the KTeV experiment at Fermilab. We determine the KL -> pi0 gamma gamma branching ratio to be (1.68 +/- 0.07 +/- 0.08)x10**-6. Our data shows the first evidence for a low-mass gamma gamma signal as predicted by recent O(p**6) chiral perturbation calculations that include vector meson exchange contributions. From our data, we extract a value for the effective vector coupling aV = -0.72 +/- 0.05 +/- 0.06. | |
| dc.description | 5 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9902029 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9902029 | |
| dc.identifier | Phys.Rev.Lett.83:917-921,1999 | |
| dc.identifier | doi:10.1103/PhysRevLett.83.917 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178731 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the Decay KL -> Pi0 Gamma Gamma | |
| dc.type | text |