Piandani, R. (2009) Lepton flavour violation in K → lν in NA62 at CERN. Il nuovo cimento C, 32 (3\4). pp. 287-290. ISSN 1826-9885
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Abstract
The ratio RK = Γ(K± → e±ν)/Γ(K± → μ±ν) between the two leptonic decay rates of charged kaons is precisely predicted within the Standard Model (SM). A recent theoretical work noticed that SUSY extensions of the SM can induce mu-electron universality violation in such a way to introduce a shift of the RK value up to few percent respect to SM one. Presently the experimental relative error of RK, that includes also the last two recent measurements from NA48 and KLOE, is around 1.5%. During summer 2007 and summer 2008 the NA62 Collaboration performed a dedicated period of measurements at the CERN SPS in order to achieve both the statistical and systematic accuracy for a 0.5% relative error. A sample of about 140000 K+ → e+ν decays has been collected. The experimental set-up and the analysis strategy will be described.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Decays of K mesons |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 26 Mar 2020 20:07 |
| Last Modified: | 26 Mar 2020 20:07 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/16675 |
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