New and recent results from NA48/2

NA48/2 Collaboration

Research output: Contribution to conferencePaperpeer-review

Abstract

Recent results from the NA48/2 experiment are presented. The most precise measurement of the charged kaon semileptonic form factors has been obtained from 4.28 million Ke±3 and 2.91 million Kµ±3 events collected in 2004. A sample of 1663 events of the very rare decay K± ? µ±?e+e- has been collected in the region Mee > 140 MeV/c2 with negligible background. The measured model independent decay rate is in agreement with ChPT predictions. The branching ratio of the K± ? p±p0e+e- decay, never observed so far, has been obtained from a sample of 5000 candidates, in agreement with ChPT predictions.

Original languageEnglish (US)
Pages65-70
Number of pages6
StatePublished - 2017
Event52nd Rencontres de Moriond on QCD and High Energy Interactions 2017 - La Thuile, Italy
Duration: Mar 25 2017Apr 1 2017

Conference

Conference52nd Rencontres de Moriond on QCD and High Energy Interactions 2017
CountryItaly
CityLa Thuile
Period3/25/174/1/17

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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