6533b861fe1ef96bd12c4d8e

RESEARCH PRODUCT

Search for the decay KS → π0γγ

R.s. DosanjhM. WittgenJ. CoganM. De BeerT.j. GershonH. D. WahlG. GoviW. KubischtaE. RondioT. Cuhadar-dönszelmannPeter Zahariev HristovPeter Zahariev HristovAnton TaurokK. HoltzRainer WankeB. PeyaudC. CheshkovN. A. MolokanovaM. MarkytanM. LentiD. J. MundayVladimir KekelidzeG. GrazianiG. NeuhoferA. NappiLau GatignonA. TkatchevNadia PastroneJ.-c. CholletP. F. DalpiazB. Panzer-steindelP. CenciE. IacopiniP. GrafströmR. TurlayI.g. KnowlesKonrad KleinknechtV. FalaleevS. GiudiciI. MannelliD.c. CundyM. ContalbrigoM. PepeS. WronkaY. SchuéB. VallageBenedetto GoriniD. MarrasR. FantechiA. MaierM. EppardG. FischerMilene CalvettiL. KöpkeD. MadigojineU. KochManfred JeitlerC. CerriR. CarosiA. LaiAndrea FormicaA. WinhartA. PetersNicolo CartigliaA. KalterS. A. WottonMichael Andrew ParkerP.l. FrabettiLouis FayardMauro PicciniF. MarchettoA. NortonJ. DuclosH. DibonMichal SzleperNiels DobleE. OlaiyaI. PellmannG. UnalH. FoxG. AnzivinoP. DebuL. WidhalmF. CostantiniE. MazzucatoRoberta ArcidiaconoM. SozziR. SaccoB. RenkA. LacourtAugusto CeccucciG. PierazziniJ. NassalskiT. O. WhiteW. WislickiV. SchönhartingM. PernickaAlan W. WalkerP. Lopes Da SilvaL. MasettiSandro PalestiniA. GonidecA. I. ZinchenkoLydia Iconomidou-fayardM. HolderP. MarouelliM. CirilliG. CollazuolF. PetrucciA. GianoliM. SavrieC. LazzeroniR. Granier De CassagnacRoberto GuidaR. CasaliG. TatishviliG. BocquetYu. PotrebenikovG. KalmusG. KalmusR. J. BatleyH.g. BeckerCristina BiinoIvan MikulecJ.b. ChezeP. LubranoS.a. SchmidtVictoria Jane MartinE. ImbergamoMayda VelascoH. TauregAndrea BizzetiMichael ZiolkowskiG.d. BarrM. MartiniJ. OcarizI. WingerterAlexi MestvirishviliAdrian John BevanE. Menichetti

subject

Nuclear physicsPhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron Collider010308 nuclear & particles physicsBranching fraction0103 physical sciencesDetectorLimit (mathematics)010306 general physics01 natural sciencesBeam (structure)

description

Abstract A search for the decay K S → π 0 γγ has been made using the NA48 detector at the CERN SPS. Using data collected in 1999 during a 40-hour run with a high-intensity K S beam, an upper limit for the branching ratio BR ( K S → π 0 γγ , z ⩾0.2) −7 has been obtained at 90% confidence level, where z = m γγ 2 / m K 0 2 .

10.1016/s0370-2693(03)00104-7https://ora.ox.ac.uk/objects/uuid:80ee4340-d7e7-4e3f-a48c-a8cb9842217d