6533b836fe1ef96bd12a1249
RESEARCH PRODUCT
Search for the decay ϕ→K0K¯0γ with the KLOE experiment
Juliet Lee-franziniFilippo CeradiniF. BossiCesare BiniPaolo SantangeloL. TortoraPaolo CiambroneVincenzo PateraP. FranziniG. LanfranchiM. NapolitanoG. BencivenniG. FeliciF. MurtasAchim DenigS. GiovannellaMassimo AntonelliStefan E. MüllerB. Di MiccoF. NguyenM. PalutanG. VenanzoniM. TestaS. FioreP. ValenteG. De ZorziP. De SimoneE. GrazianiR. VersaciF. AmbrosinoT. CapusselaSimona Serena BocchettaC. Di DonatoG. F. XuP. BranchiniM. DreucciA. PasseriM. MoulsonA. De SantisP. MassarottiBarbara SciasciaM. MartiniP. GauzziA. Di DomenicoS. MeolaA. AntonelliClaudio GattiC. BloiseEnrico PasqualucciE. De LuciaFlavio ArchilliP. BeltrameG. CaponS. MiscettiS. BertolucciT. Spadarosubject
PhysicsNuclear physicsNuclear and High Energy PhysicsTheoretical physicsPhotonMesonLimit (mathematics)Bar (unit)description
Abstract We have searched for the decay ϕ → K 0 K ¯ 0 γ , by detecting K S pairs plus a photon and with the K S -mesons decaying to π + π − , in a sample of about 1.5 × 10 9 ϕ-decays collected by the KLOE experiment at DAΦNE. The reaction proceeds through the intermediate states f 0 ( 980 ) γ , a 0 ( 980 ) γ . We find five events with 3.2 events expected from background processes. We obtain the upper limit: BR ( ϕ → K 0 K ¯ 0 γ ) 1.9 × 10 − 8 at 90% CL.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-08-01 | Physics Letters B |