Measurement of the Ks into 2 photons ratio using a pure Ks beam
Matteo Martini
Broschiertes Buch

Measurement of the Ks into 2 photons ratio using a pure Ks beam

Measurement with the KLOE detector at Dafne

Versandkostenfrei!
Versandfertig in 6-10 Tagen
44,99 €
inkl. MwSt.
PAYBACK Punkte
22 °P sammeln!
A precise measurement of the Ks into two photonsdecay rate is animportant test of Chiral Perturbation Theory predictions.This amplitude has been evaluated at the leading order of ChPT, O(p4), providing the estimate of the corresponding branchingratio, 2.1x 10^(-6), with a few percent precision. The last precise determination of this ratio of 2.71x10^(-6), with a total uncertainty below3%, comes fromNA48. The last mentioned result differs from ChPT prediction of about 30%, indicating possible contributions from higher order corrections.From 2 billion phi mesonscollected with KLOE at DAFNE, we h...