Romano, A. (2011) Test of lepton flavour universality in kaon decays at the NA62 experiment at CERN. Il nuovo cimento C, 34 (6). pp. 67-69. ISSN 1826-9885
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Abstract
A precision test of lepton flavour universality by measurement of the helicity suppressed ratio RK = Γ(K+ → e+ν)/Γ(K+ → μ+ν) was performed by the NA62 Collaboration at CERN using a dedicated data sample collected in 2007. The result of the analysis based on 59963 K+ → e+ν candidates with 8.8% background contamination is RK = (2.487 ± 0.013) × 10−5 and is consistent with the prediction of the Standard Model.
Item Type: | Article |
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Uncontrolled Keywords: | Decays of K mesons ; Electrons (including positrons) ; Muons |
Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
Depositing User: | Marina Spanti |
Date Deposited: | 10 Apr 2020 14:39 |
Last Modified: | 10 Apr 2020 14:39 |
URI: | http://eprints.bice.rm.cnr.it/id/eprint/17511 |
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