6533b825fe1ef96bd12831c1

RESEARCH PRODUCT

Search for the decay KL → 3γ

R. HeinzLaurent SerinI. MannelliM. RostJ. StaeckA. KreutzR. HagelbergJ. ScheidtH. G. SanderF. LeberB. RenkH. BlümerKen PeachN. DobleD.c. CundyG.d. BarrKonrad KleinknechtV.m. MarzulliPaolo CalafiuraM. HolderE. AugéR. CarosiR. CasaliF. ScheererDaniel FournierH. RohrerG.m. PierazziniPeter BuchholzM. CalvettiT. BeierP. GrafströmO. PerdereauArthur SchafferD. CowardR. WerthenbachC. CerriL. GatignonH. D. WahlA. NappiA. WagnerLydia Iconomidou-fayardL. Bertanza

subject

Nuclear physicsPhysicsNuclear and High Energy PhysicsParticle physicsDistribution (mathematics)Branching fraction

description

Abstract Data from the NA31 experiment at the CERN SPS have been used for the first search for the decay mode KL → 3γ. Seven events have been found with an estimated background of 6.7 ± 1.5 events. The corresponding upper limit for the branching ratio is Γ(K L → 3γ) Γ(K L → all ) = 2.4 × 10 −7 at the 90% confidence level, assuming a phase-space decay distribution.

yearjournalcountryeditionlanguage
1995-09-01Physics Letters B
https://doi.org/10.1016/0370-2693(95)01044-q