5-12 July 2017
Venice, Italy
Europe/Zurich timezone
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Precision measurement of the form factors of the charged kaon semileptonic decays $K^\pm_{l3}$

8 Jul 2017, 12:45
Room Mosaici-2 (Palazzo del Casinò)

Room Mosaici-2

Palazzo del Casinò

Parallel Talk Flavour Physics and Fundamental Symmetries Flavour and symmetries


Mauro Piccini (INFN - Sezione di Perugia (IT))


The NA48/2 experiment presents a final result of the charged kaon semileptonic decays form
factors measurement based on 4.28 million $K^\pm_{e3}$ and 2.91 million $K^\pm_{\mu 3}$ selected
decays collected in 2004. The result is competetive with other measurements in $K^\pm_{\mu 3}$
mode and has a smallest uncertainty for $K^\pm_{e3}$, that leads to the most precise
combined $K^\pm_{l3}$ result and allows to reduce the form factor uncertainty of $|V_{US}|$.

Experimental Collaboration na48

Presentation Materials