J-PARC一般化ー分布研究(可能性)....pptx

HighMomentumBeamlineatJ-PARC

Shin’yaSawadaKEK(HighEnergyAcceleratorResearchOrganization,Japan)Nov.12,20071ShinyaSawada@RCNP

IntroductionExamplesofExperimentsHighMassDimuon(unpol)HighMassDimuon(pol):Goto-sanPhi:Yokkaichisan…BeamlineOverviewandRDNov.12,20072ShinyaSawada@RCNP

SlowExtractionBeamline(Phase1)NP-HALL56m(L)×60m(W)50-GeVPST1Target30%LossBeamDump750kWSwitchYardA-LineT0Target0.5%LossSplitPoint2%LossPlantoextendthehalldownstream(~50m)inthePhase2.Nov.12,20073ShinyaSawada@RCNP

BeamlinesattheHadronHallNov.12,20074ShinyaSawada@RCNP

WhatistheHighMomentumBeamline?Primarybeams:proton(Phase1),polarizedprotonandheavyions(future)upto51GeV/c.Secondarybeams:proton,pion,kaon,etc.TheradiationshieldingoftheSYtunnelisdesignedsothat2%(15kW)lossallowedatSM1.Exp.setupcouldbestaged.~120mNov.12,20075ShinyaSawada@RCNP

HadronPhysicsBeamsofnotonlylowmomentumK/piareindispensabletostudyQCDissuesatJ-PARC!Drell-Yan,J/Psiproduction?structureatlargexp,KscatteringHypernucleiformationviap,KbeamsVectormesonmodificationinmatterChiralperturbationtheoryviaKdecaysSpectroscopywithpandKbeamsNov.12,20076ShinyaSawada@RCNP

PhysicsPossibilitiesoftheHighMomentumBeamlineHadronPhysics~PhysicsofQCDTwoMajorQuestsofQCDquarkconfinementandchiralsymmetrybreakingSubjectsofHadronPhysics:attackingthesequestsfromvariousaspectsofview,atJ-PARC.Hadronspectroscopy:spectroscopywithpi/KMeson-baryondynamics:chiralperturbationviaKdecays,…QuarknuclearmatterNuclearforce:pi/Kscattering,hypernuclearformationviapi/KNucleonstructureExperimentstoexploremajorhadronphysicsquestsarepossibleatthehighmomentumbeamline!vectormesonmodificationinmatter?chiralsymmetryrestorationDrell-YanandJ/Psiproduction?nucleonstructureatlargexNov.12,20077ShinyaSawada@RCNP

ExamplesofExperimen