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 language | English (US) |
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Pages | 65-70 |
Number of pages | 6 |
State | Published - 2017 |
Event | 52nd Rencontres de Moriond on QCD and High Energy Interactions 2017 - La Thuile, Italy Duration: Mar 25 2017 → Apr 1 2017 |
Conference
Conference | 52nd Rencontres de Moriond on QCD and High Energy Interactions 2017 |
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Country/Territory | Italy |
City | La Thuile |
Period | 3/25/17 → 4/1/17 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics