학술논문

A study of the K+→ π0e+νγ decay.
Document Type
Article
Source
Journal of High Energy Physics. Sep2023, Vol. 2023 Issue 9, p1-18. 18p.
Subject
Language
ISSN
1126-6708
Abstract
A sample of 1.3 × 105K+ → π0e+νγ candidates with less than 1% background was collected by the NA62 experiment at the CERN SPS in 2017–2018. Branching fraction measurements are obtained at percent relative precision in three restricted kinematic regions, improving on existing results by a factor larger than two. An asymmetry, possibly related to T-violation, is investigated with no evidence observed within the achieved precision. [ABSTRACT FROM AUTHOR]