Main Injector Particle Production

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• Main Injector Particle Production
• Experiment
• DOE Annual Program Review
• Holger Meyer

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MIPP Experiment Overview

• Approved in November 2001, installed in Meson
  Center MC7,14 months physics run ended in
  Februrary 2006
• Use 120 GeV/c Main Injector protons to produce
  secondary beams of p?, K?, and p? from 5 GeV/c to
  90 GeV/c 120 GeV/c proton beam
• Measure particle production cross sections on
  fixed targets various nuclei including hydrogen
  and the NuMI target
• Momenta of all charged particles measured with
  TPC and tracking chambers.Particle
  identification with dE/dx, ToF, differential
  Cherenkov, and RICH technologies.
• Open Geometry Lower systematics Higher
  statistics than existing data.
• A proposal P960 to upgrade MIPP is under
  consideration

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MIPP Collaboration
J. Klay - California Polytechnic State
University, R. J. Peterson - University of
Colorado, Boulder W. Baker, D. Carey, J. Hylen,
C. Johnstone, M. Kostin, H. Meyer, N. Mokhov, A.
Para, R. Raja, N. Solomey, S. Striganov - Fermi
National Accelerator Laboratory G. Feldman, A.
Lebedev, S. Seun - Harvard University P. Hanlet,
O. Kamaev, D. Kaplan, H. Rubin, Y. Torun -
Illinois Institute of Technology U. Akgun, G.
Aydin, F. Duru, E. Gülmez, Y. Gunaydin, Y. Onel,
A. Penzo - University of Iowa N. Graf, M.
Messier, J. Paley - Indiana University P. D.
Barnes Jr., E. Hartouni, M. Heffner, D. Lange, R.
Soltz, D. Wright - Lawrence Livermore
Laboratory R. L. Abrams, H. R. Gustafson, M.
Longo, T. Nigmanov, H-K. Park, D. Rajaram -
University of Michigan A. Bujak, L. Gutay, D. E.
Miller - Purdue University T. Bergfeld, A.
Godley, S. R. Mishra, C. Rosenfeld, K. Wu -
University of South Carolina C. Dukes, L. C. Lu,
C. Materniack, K. Nelson, A. Norman - University
of Virginia N. Solomey Wichita State University
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MIPP Secondary Beam

• Installed in 2003. Delivered slow spill
  commissioning beam since February 2004. Finished
  Engineering run in Aug 2004.

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MIPP Detector - Tracking
JGG
TPC
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MIPP Detector Particle ID
ToF b cm/ns vs p GeV/c
RICH ring radiiand vessel
Segmented threshold Ckov
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MIPP Time Projection Chamber
TPC originates at BEVALAC group at LBL, then
BNL-E910 - currently limiting DAQ to 60Hz
(1990's electronics)- drift time is 16 ms
All tracks are reconstructed- even in bad events
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MIPP TPC Distortion Corrections

• Correct for non-parallel E and B fields
• use Magboltz to model electron drift in P10 gas
• Parametrize in drift velocity v(vx,vy,vz),
  E(0,Ey,0), B(Bx,By,0)
• Swim electrons up from the pad-plane
• Distortions ofseveral cm inJGG
• Residuals offew mm

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MIPP Monte Carlo simulates Data well
Data (left) and MC (below) agree well.MC models
regions of low gain in the TPC.
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MIPP Expected Particle ID
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MIPP Physics

• Particle Physics To acquire unbiased high
  statistics data with complete particle id
  coverage for hadron interactions.
• Study non-perturbative QCD hadron dynamics,
  scaling laws of particle production
• Investigate light meson spectroscopy, missing
  resonances
• Charged Kaon mass measurement
• Nuclear Physics
• Investigate strangeness production in nuclei
• Nuclear scaling
• Propagation of flavor through nuclei
• Service Measurements
• Improve shower models in MARS, Geant4 and
  Calorimetry -- ILC
• Proton Radiography Stockpile Stewardship-
  National Security
• MINOS target pion production measurements to
  control the near/far systematics
• Will make DSTs available for the public on DVDs
  after we are done.
• HARP at CERN went from 2-15GeV incoming pion and
  proton beams. MIPP has data at 5-85 GeV/c for 6
  beam species ???K ? p ?

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MIPP Data Set
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MIPP Data Reconstruction

• Tracking and Vertex reconstruction ?
• PID
• TPC ?
• Ckov ?
• ToF ? (close to final)
• RICH ?
• Monte Carlo ?

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MIPP Results

• Two PhD theses finished
• Ratio of Pion Kaon Production in Proton Carbon
  Interactions (Andre Lebedev)
• Measurement of Pi-K Ratios from the NuMI Target
  (S. Seun)
• 120 GeV/cproton beam
• Several otherpreliminaryresults
• Multiplicities
• Cross Sections

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MIPP 120 GeV/c p-C ratios

• MIPP data for ratios of p and K produced by p on
  thin-Carbon A. Lebedev
• MIPP data is needed to constrain models/fits

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Preliminary Cross Sections

• Reasonable first results G. Aydin H. Meyer
• needs work on normalization, some other
  improvements

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MIPP Upgrade (P960) Collaboration

• D. Isenhower, M. Sadler, R. Towell, S. Watson
  Abilene Christian University
• R. J. Peterson University of Colorado, Boulder
• W. Baker, B. Baldin,D. Carey, D. Christian, M.
  Demarteau, D. Jensen, C. Johnstone, H. Meyer, R.
  Raja, A. Ronzhin, N. Solomey, W. Wester, J.-Y.
  Wu Fermi National Accelerator Laboratory
• W. Briscoe, I. Strakovsky, R. Workman George
  Washington University, Washington D.C
• H. Gutbrod, B. Kolb, K. Peters GSI, Darmstadt,
  Germany
• G. Feldman Harvard University
• Y. Torun Illinois Institute of Technology
• M.D. Messier, J. Paley Indiana University
• U. Akgun, G. Aydin, F. Duru, E. Gülmez, Y.
  Gunaydin, Y. Onel, A. Penzo University of Iowa
• V. Avdeichikov, P. Filip, R. Leitner, J.
  Manjavidze, V. Nikitin, I. Rufanov, A. Sissakian,
  T. Topuria, A. Zinchenko Joint Institute of
  Nuclear Research, 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
• D. Bergman, G. Thomson Rutgers University, New
  Jersey
• 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

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MIPP Upgrade Status

• New JGG magnet coils manufactured (200k)
• Refurbish Ziptrack to map the new magnetic field
• TPC electronics in hand
• Altro Pasa chips (80k)
• Same as LHC, STAR,
• Will read out at 3kHz
• Other electronics upgrades
• Prototypes in fabrication
• Plastic Ball from KVI/GSI asrecoil detector in
  MIPP

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MIPP Upgrade Physics

• Measurement of Neutrino production targets
• MINOS, NOvA, MINERvA
• Atmospheric Neutrino production, Cosmic Ray
  showers
• Cross sections on Nitrogen
• Hadronic Shower Simulation
• Tagged neutral beams
• ILC Detector RD
• Non-perturbative QCD
• Baryon Spectroscopy
• See "Proposal to upgrade the MIPP Experiment for
  details and further topics

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MIPP Summary

• MIPP finished taking data in February 2006.Data
  analysis is in progress and first results are
  coming out now.
• A future run (if approved) will improve
  statistics and physics reach further.
• MIPP is a very versatile experiment.
• Interesting physics on its own
• MIPP data is an important input for many other
  experiments
• Atmospheric Neutrinos Cosmic Rays PIERRE
  AUGER, ICE CUBE
• MINOS/MINER?A/NO?A, Super K/Hyper K (neutrino
  spectra)
• CMS/Atlas (hadronic energy scale)
• ILC calorimetry (hadronic energy
  scale/resolutions)

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The End

• Backup slides

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MIPP Detector Alignment

• TPC ExB corrections could not be done well with
  bad alignment
• Need to fit TPC residuals against know track
  positions from chambers

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Beam Cherenkov Pressure Curves
40 GeV/c
-40 GeV/c
p
p
K-
p-
p-
K
p-
p
p
K
K-
p-
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50 GeV/c p-C Event Display
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NuMI target in MIPP
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Charged Kaon Mass in MIPP
RICH ring radius of tagged p, K, p beam particles
measures K mass relative to well know masses of
p, p. With higher statistics this couldresolve
the disagreement betweenexisting measurements,
see PDG.Important for VUS.
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Why study non-perturbative QCD?

• We do not know how to calculate a single cross
  section in non-perturbative QCD! This is gt99 of
  the total QCD cross section. Perturbative QCD has
  made impressive progress. But it relies on
  structure functions for its calculations, which
  are non-perturbative and derived from data.
• Feynman scaling, KNO scaling, rapidity plateaus
  are all violated. We cannot predict elastic cross
  sections, diffractive cross sections, let alone
  inclusive or semi-inclusive processes. Regge
  ''theory'' is in fact a phenomenology whose
  predictions are flexible and can be easily
  altered by adding more trajectories.
• All existing data are old, low statistics with
  poor particle id.MIPP data on LH2 will provide
  precise data to test new ideas.

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General scaling law of particle fragmentation

• States that the ratio of a semi-inclusive cross
  section to an inclusive cross section
• where M2, s and t are the Mandelstam variables
  for the missing mass squared, CMS energy squared
  and the momentum transfer squared between the
  particles a and c. PRD18(1978)204.
• Using EHS data, we have tested and verified the
  law in 12 reactions (DPF92) but only at fixed s.
• MIPP will test the law as a function of s and t
  for various particle types a, b, and c for beam
  energies between 5 GeV/c and 120 GeV/c to
  unprecedented statistical and systematic accuracy
  in 36 reactions.

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Particle fragmentation scaling law EHS results
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Simulation of cosmic ray showers

• Existing data is sparse