6533b823fe1ef96bd127ea77

RESEARCH PRODUCT

Search for the charge-conjugation-forbidden decayω→ηπ0

Volker MetagB. M. K. NefkensI. SupekE. HeidM. H. SikoraR. GregorA. StarostinA. KoulbardisD. I. GlazierMichaela ThielG. RosnerV. L. KashevarovM. OstrickD. M. ManleyM. KorolijaP. A. BartolomeE. F. McnicollD. P. WattsS. CherepnyaC. M. TarbertI. M. SuarezR. KondratievS. SchumannS. SchumannK. BantawaJ. AhrensV. S. BekrenevYasser MaghrbiD. I. SoberF. PheronM. MartinezM. KotullaD. HornidgeE. J. DownieM. RostJ. C. McgeorgeS. P. KruglovA. PolonskiB. KruscheS. N. PrakhovL. V. Fil'kovJ. RobinsonI. J. D. MacgregorD. MekterovicW. J. BriscoeR. BeckR. BeckJason BrudvikK. LivingstonT. C. JudeAndy ThomasM. UnverzagtH. J. ArendsP. PedroniV. LisinSasa MicanovicO. JahnD. BranfordJrm AnnandA. Braghieri

subject

PhysicsNuclear and High Energy PhysicsParticle physicsParticle decayPionMesonBranching fractionHadronAtomic physicsNuclear ExperimentOmega baryonOmegaCrystal Ball

description

A new upper limit of 2.3x10{sup -4} on the branching ratio of the decay {omega}{yields}{eta}{pi}{sup 0} has been obtained using the Crystal Ball multiphoton spectrometer at the Mainz Microtron MAMI. This decay is forbidden by charge-conjugation invariance of the strong and electromagnetic interactions. We have also obtained the upper limit of 2.3x10{sup -4} for the forbidden decay {omega}{yields}3{pi}{sup 0} and the upper limit of 2.4x10{sup -4} for {omega}{yields}2{pi}{sup 0}.

https://doi.org/10.1103/physrevc.79.065201