The NA48/2 Collaboration at CERN has accumulated and analysed unprecedented statistics of rare kaon decays in the Ke4 modes: Ke4(+-) (K± p+p-e±) and Ke4(00) (K± p0p0e±) with nearly one percent background contamination. It leads to the improved measurement of branching fractions and detailed form factor studies. New final results from the analysis of 381 K± p± rare decay candidates collected by the NA48/2 and NA62 experiments at CERN are presented. The results include a decay rate measurement and fits to Chiral Perturbation Theory (ChPT) description.
Recent NA48/2 and NA62 results / Ambrosino, F.; Corvino, M.; Massarotti, P.; Mirra, M.; Napolitano, M.; Saracino, G.. - (2014), pp. 369-372. (Intervento presentato al convegno 49th Rencontres de Moriond on QCD and High Energy Interactions 2017 tenutosi a Aosta Valley, ita nel 2014).
Recent NA48/2 and NA62 results
Ambrosino F.;Corvino M.;Massarotti P.;Napolitano M.;Saracino G.
2014
Abstract
The NA48/2 Collaboration at CERN has accumulated and analysed unprecedented statistics of rare kaon decays in the Ke4 modes: Ke4(+-) (K± p+p-e±) and Ke4(00) (K± p0p0e±) with nearly one percent background contamination. It leads to the improved measurement of branching fractions and detailed form factor studies. New final results from the analysis of 381 K± p± rare decay candidates collected by the NA48/2 and NA62 experiments at CERN are presented. The results include a decay rate measurement and fits to Chiral Perturbation Theory (ChPT) description.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
