7–13 May 2017
Sintra, Portugal
Europe/Lisbon timezone

Recent QCD-related results from Kaon physics at CERN (NA48 and NA62)

12 May 2017, 09:00
30m
Sintra, Portugal

Sintra, Portugal

Hotel Sintra Jardim 30º47'40'' N - 9º 22' 55'' W Quinta Visconde de Tojal Largo Sousa Brandão, nº 1, São Pedro de Sintra 2710-506 Sintra Portugal

Speaker

Mr Sergey Shkarovskiy (Joint Institute for Nuclear Research (RU))

Description

The NA48/2 experiment presents a final result of the charged kaon semileptonic decays form factors measurement based on 4.28 million Ke3± and 2.91 million Kμ3± selected decays collected in 2004. The result is competetive with other measurements in Kμ3± mode and has a smallest uncertainty for Ke3±, that leads to the most precise combined Kl3± result and allows to reduce the form factor uncertainty of |VUS|. The NA62 experiment at the CERN SPS collected a large sample of charged kaon decays with a highly efficient trigger for decays into electrons in 2007. The kaon beam represents a source of tagged neutral pion decays in vacuum. A preliminary result of a new measurement of the electromagnetic transition form factor slope of the neutral pion in the time-like momentum region from 1.05 million fully reconstructed π 0 Dalitz decays is presented in the second part of this report.

Author

Mr Sergey Shkarovskiy (Joint Institute for Nuclear Research (RU))

Presentation materials