6533b861fe1ef96bd12c587c

RESEARCH PRODUCT

Search for a neutral Higgs particle in the decay sequence $K^{0}_{L} \to \pi^{0}H^{0}$ and $H^{0} \to e^{+}e^{-}$

H. TauregH.n. NelsonA. M. LutzM. CalvettiM. RostG.m. PierazziniG.d. BarrH. G. SanderB. RenkH. D. WahlArthur SchafferKen PeachT. MiczaikaW. StephensonW. WeihsR.l. ChaseB. PijlgromsI. MannelliR. HeinzA. NappiDaniel FournierH. RohrerL. GatignonP. CalafiuraB. PanzerV. GibsonL. BertanzaC. YoungmanH. BlümerIan ShipseyN. DobleKonrad KleinknechtC. CerriJ. MuirD. J. CandlinLydia Iconomidou-fayardP. GrafströmR. CasaliG. QuastI. HarrusA. BigiJ. Van Der LansG. ZechM. CortiD. CowardG. KesselerM. KasemannR. HagelbergR. CarosiD.c. CundyR. BlackE. AugéP. MayerM. HolderPh. HeussePeter ClarkeH. Burkhardt

subject

PhysicsNuclear and High Energy PhysicsSequenceParticle physicsRange (particle radiation)Large Hadron ColliderBranching fractionElementary particleSuper Proton SynchrotronStandard ModelNuclear physicsHiggs bosonHigh Energy Physics::ExperimentParticle Physics - Experiment

description

Abstract We have searched for the sequence of decays K L 0 → π 0 H 0 and H 0 →e + e − at the CERN Super Proton Synchrotron (SPS), and have allowed for a non-zero H 0 lifetime. Three candidates have been seen, consistent with an expected background of 3.3. Limits on the branching ratio product in the range 10 −8 –10 −7 are presented as a function of the mass and lifetime of the H 0 . These can be used to restrict the neutral Higgs of the minimal standard model.

10.1016/0370-2693(90)91979-lhttp://cds.cern.ch/record/203195