6533b828fe1ef96bd12878e4

RESEARCH PRODUCT

Measurement of the branching ratio of the decay Ξ0→Σ+μ−ν¯μ

Milene CalvettiH. DibonG.m. PierazziniL. GatignonG. RuggieroA. GonidecCristina LazzeroniP. F. DalpiazM. De BeerS. GiudiciG. CollazuolT. Fonseca MartinMauro PicciniE. MonnierG. BocquetYu. PotrebenikovD.j. MundayNicolo CartigliaManfred JeitlerM. ScarpaG. NeuhoferD.c. CundyA. WinhartRainer WankeH. WahlNadia PastroneR. SaccoA. HirstiusG. AnzivinoG. GougeSimone BifaniM. BehlerMarco ClemencicM. PepeP. MarouelliB. Panzer-steindelM. VeltriP. DebuE. IacopiniR. WinstonS. WottonA. MaierN. DobleVladimir KekelidzeP. CenciE. C. SwallowN. A. MolokanovaP. GrafströmW. BaldiniK. EppardCristina BiinoM. ZiolkowskiP. RubinP. LubranoM. HolderA. NappiD. T. MadigozhinA. PetersEvgueni GoudzovskiF. CostantiniI. MannelliM. SozziS. StoynevL. WidhalmS. Goy LopezRoberta ArcidiaconoU. KochW. WislickiU. MoosbruggerM. MartiniA. NortonM. PatelW. KubischtaKonrad KleinknechtG. MarelM.w. SlaterA. ZinchenkoL. MasettiIvan MikulecE. MenichettiE. MazzucatoP. HristovJ. R. BatleyE. ImbergamoB. PeyaudC. CheshkovV. KozhuharovM. EppardV. FalaleevM. SavrieF. MarchettoA. MichettiG.e. KalmusC. CerriB. VallageFabrizio PetrucciA. CeccucciAndrea BizzetiLeander LitovP.l. FrabettiA. GianoliAlan W. WalkerC. Morales MoralesM. ValdataA. DabrowskiM. C. PetrucciMayda VelascoM. MarkytanM. LentiJ.b. ChezeG. LamannaLuca FioriniR. Fantechi

subject

PhysicsNuclear and High Energy PhysicsMeson010308 nuclear & particles physicsBranching fractionHadronAnalytical chemistryElementary particle01 natural sciencesNuclear physics0103 physical sciences010306 general physicsBosonDimensionless quantity

description

Abstract From the 2002 data taking with a neutral kaon beam extracted from the CERN-SPS, the NA48/1 experiment observed 97 Ξ 0 → Σ + μ − ν ¯ μ candidates with a background contamination of 30.8 ± 4.2 events. From this sample, the BR ( Ξ 0 → Σ + μ − ν ¯ μ ) is measured to be ( 2.17 ± 0.32 stat ± 0.17 syst ) × 10 − 6 .

https://doi.org/10.1016/j.physletb.2013.01.023