Recent NA48/2 results on rare kaon decays
File(s)epjconf_ismd18_05001.pdf (818 KB)
Published version
Author(s)
Madigozhin, Dmitry
Type
Conference Paper
Abstract
NA48/2 results contributing to ChPT testing are presented. A sample of 1663 events of the rare decay has been selected with a minimum e +e −effective mass of 140 MeV. The measured model independent decay rate is in agreement with ChPT predictions. The branching ratio of the decay, never observed so far, has been obtained from a sample of about 5000 candidates with less than 6% background, also in agreement with ChPT predictions. In addition, a most precise measurement of the charged kaon semileptonic formfactors has been obtained from 4.4 million Ke3 and 2.3 million Kµ3 events collected in 2004.
Date Issued
2019-04-19
Date Acceptance
2018-09-03
Citation
EPJ Web of Conferences, 2019, 206, pp.1-10
Publisher
EDP Sciences
Start Page
1
End Page
10
Journal / Book Title
EPJ Web of Conferences
Volume
206
Copyright Statement
© The Authors, published by EDP Sciences, 2019. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Identifier
https://www.epj-conferences.org/articles/epjconf/abs/2019/11/epjconf_ismd18_05001/epjconf_ismd18_05001.html
Source
XLVIII International Symposium on Multiparticle Dynamics (ISMD 2018)
Publication Status
Published
Start Date
2018-09-03
Finish Date
2018-09-07
Coverage Spatial
Singapore
Date Publish Online
2019-04-19