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Main Injector Particle Production (MIPP) Experiment (FNAL-E907): Application to Cosmic Rays. Wayne Springer University of Utah. Colliders to Cosmic Rays (…and back) Lake Tahoe USA Feb 28 2007. Main Injector Particle Production (MIPP) Experiment (FNAL-E907): Application to Cosmic Rays.
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Main Injector Particle Production (MIPP)Experiment (FNAL-E907):Application to Cosmic Rays Wayne Springer University of Utah Colliders to Cosmic Rays (…and back) Lake Tahoe USA Feb 28 2007
Main Injector Particle Production (MIPP)Experiment (FNAL-E907):Application to Cosmic Rays • Extensive Air Showers • Determination of UHECR parameters • Energy, Xmax and flux • Measurement Techniques • Modeling of EAS • Hadronic Interaction Models and Corsika • Dependence on particle physics • MIPP Experiment • Description • Measurements applicable to better understanding of EAS
Longitudinal Profile Air Fluorescence Lateral Profile Ground Arrays Extensive Air ShowersProfiles: Longitudinal and Lateral Only Measure effects related to Charged particle content of Extensive Air Showers !!!!
Determination of UHECR Parameters from EASCharged Particle Longitudinal Profile • Energy and Xmax Determination • Integrate Shower profile • Correct for portion of shower not observed • Correct observed EM energy into total energy • Particle multiplicity and cross-section are influences on longitudinal profile shape and fraction correction • Need EAS models to calculate detector aperture as well as for energy determination
Ground ArrayAGASA Lateral Distribution • Energy Determination • From Local density at 600m • Particle multiplicity, Cross sections and differential cross section influence the relation between S(600) and the Energy of the UHECR E=2.13x1020eV M. Teshima Muon/Neutrino Ele. Mag
Externsive Air Shower ModelingCorsika Simulated 1015 eV proton EAS • Well developed EAS models exist • High Energy • DPMJET • neXus • QGSJET • SIBYLL • Low/Intermediate Energy • GHEISHA • Hillas’ Splitting Algorithm • FLUKA • UrQMD • TARGET • HADRIN/NUCRIN • SOPHIA • Questions • Neutral particles • EAS Muon Content • How close to reality? J. Oehlsclaeger and R. Engel
Hadronic Interaction Models Inputs Particle Data Group R. Engel • Hadronic production • Cross-sections • Multiplicities • Compare to measurements • Extrapolation at high energies
Example of Model VariabilityModel Predictions: proton-proton at the LHC –Totem Expt- S.Lami Multiplicity Total Energy Predictions in the forward region within the CMS/TOTEM acceptance (T1 + T2 + CASTOR)
Main Injector Particle Production ExperimentMIPP (FNAL E907) D.Isenhower,M.Sadler,R.Towell,S.Watson Abilene Christian University R.J.Peterson University of Colorado, Boulder W.Baker,D.Carey, D.Christian,M.Demarteau,D.Jensen,C.Johnstone,H.Meyer, R.Raja,A.Ronzhin,N.Solomey,W.Wester Fermi National Accelerator Laboratory H.Gutbrod,K.Peters, GSI, Darmstadt, Germany G. Feldman, Harvard University Y.Torun, Illinois Institute of Technology M. Messier,J.Paley Indiana University U.Akgun,G.Aydin,F.Duru,E.Gülmez,Y.Gunaydin,Y.Onel, A.Penzo University of Iowa V.Avdeichicov,R.Leitner,J.Manjavidze,V.Nikitin,I.Rufanov,A.Sissakian,T.Topuria Joint Institute for Nuclear Researah, Dubna, Russia D.M.Manley, Kent State University H.Löhner, J.Messchendorp, KVI, Groningen, Netherlands H.R.Gustafson,M.Longo,T.Nigmanov, D.Rajaram University of Michigan S.P.Kruglov,I.V.Lopatin,N.G.Kozlenko,A.A.Kulbardis,D.V.Nowinsky, A.K.Radkov,V.V.Sumachev Petersburg Nuclear Physics Institute, Gatchina, Russia A.Bujak, L.Gutay, Purdue University A.Godley,S.R.Mishra,C.Rosenfeld University of South Carolina C.Dukes,C.Materniak,K.Nelson,A.Norman University of Virginia P.Desiati, F.Halzen, T.Montaruli, University of Wisconsin, Madison Livermore dropped out. Rest still on proposal. 7 new institutions have joined. More inegotiaitions. Previous collaboration built MIPP up from ground level. Less to do this time round. More data.
Main Injector Particle Production ExperimentMIPP (FNAL E907) • Beamline • Targets • Detector • Data • Physics Topics
MIPP Secondary Beam Line • 120GeV Main Injector Primary protons • secondary beams of p K p from 5 GeV/c to 85 GeV/c • Measure particle production cross sections on various nuclei including nitrogen.
MIPP Targets • Target inserted into TPC • Surrounded by Crystal Ball Recoil detector (in upgrade) • Cryogenic Target • Will allow Liquid N2 Target • Nuclear Targets • The A-List • H2,D2,Li,Be,B,C,N2,O2,Mg,Al,Si,P,S,Ar,K,Ca,,Fe,Ni,Cu,Zn,Nb,Ag,Sn,W,Pt,Au,Hg,Pb,Bi,U • The B-List • Na, Ti,V, Cr,Mn,Mo,I, Cd, Cs, Ba
MIPP Detector • Open Geometry Spectrometer • “Jolly Green Giant” Magnet • Time Projection Chamber(TPC) Momentum and dE/dx meaasurement • Time-of-Flight (TOF) • Cerenkov Detector • Beam Cerenkov • Ring Imaging CHerenkov • Tracking Chambers • Calorimeters • Electromagnetic • Hadronic • “Crystal Ball” (in proposed upgrade) • Excellent • Particle ID • momentum resolution • Measure differential production cross-sections for inclusive hadrons
Time Projection Chamber (TPC) • Located inside the JGG magnet • 3D tracking • dE/dx particle identification for particles with low momentum. • Current DAQ rate limited to 30Hz upgrade to 3000 Hz
Time Projection ChamberParticle ID Number of tracks vs dEdx in arbitrary units for a momentum slice ranging from 150 MeV.c to 250 MeV/c. Data is from a 20 GeV p-C run. Number of tracks vs. dEdx in arbitrary units vs. momentum in GeV/c for 20 GeV p-C data
Beam Cherenkov Detectors • Two differential Beam Cerenkov detectors • Long radiator (>30 meters total) • Separate p/K/p for beam momenta above 10 GeV/c • Beam TOF for beam momenta below 10 GeV/c • Provides beam particle id at the trigger level.
Ring Imaging Cherenkov Detector • Rings are imaged onto an array of 32x96 1/2 inch diameter pmts. • Many hits per ring -> good particle id. Provides Particle ID for particles produced in collision
Overall MIPP Particle ID Performance Good Particle ID over most of p v pt parameter space
The recoil detector Detect recoil protons, neutrons, neutral and charged pions, kaons
Comparison of model predictions for observable distributions Preliminary NUMI target to FLUKA predictions Multiplicty Momentum
Transverse Momentum vs MomentumDistributions • Differential Cross-Sections for particle production will be measured • Need input from model builders as to how to best present the data
Other MIPP Physics Topics • Non-perturbative QCD physics • Scaling law of particle fragmentation • provide new, precise data to theorists so they can test new models • Nuclear physics • y scaling • propagation of flavor through nuclei • strangeness production in nuclei • Searches • Missing baryon resonances predicted by SU(3) • Search for glue balls • Charged Kaon mass measurement • Service measurements • neutrino experiments • Pion and kaon production on NuMI target for MINOS to understand the neutrino flux (energy spectrum) • Cross sections on N2 (air) for atmospheric neutrino experiment flux • Proton Radiography (homeland security, etc.)
Summary • UHECR measurements are dependent upon particle physics models • Measurements from MIPP can provide input to those models • Current MIPP data set useful. Work ongoing. Physics DSTs available soon.. • MIPP upgrade should be designed with needs of EAS models in mind