1. IOWA MULTI WIRE PROPORTIONAL CHAMBER (MWPC) and PHYSICS POTENTIAL OF THE FERMILAB EXPERIMENT E907 (MIPP) Yusuf Oguzhan GUNAYDIN The University of Iowa Department of Physics & Astronomy 15 July 2004

2. FNAL Main Injector Particle Production Experiment Hall

3. Multi Wire Proportional Chamber (MWPC)

4. Operating Principles - Two Cathode planes sandwich anode wire plane - l = (3 or 4) x s x y s l Cathode Plane Anode Wires

5. - Magic Gas & Ionization - Negative applied voltage - Electric Field - Field lines

6. Iowa Multi Wire Proportional Chambers in Fermilab Experiment E907 - Two Iowa MWPCs each side of the RICH - 2x2 m 2 BC1BC2BC3 Beam Ckov1 Beam Ckov2 TPC J oly G reen G iant DC1 DC2DC3DC4 DIFF CKOV ROSIEROSIE RICH DC6 (MWPC) DC5 (MWPC) EMCALEMCAL HCALBeam TOFTOF

7. Anode Wire Planes - X vertically - Y horizontally - U and V slanted ±28.07 0 X Plane U Plane V Plane Y Plane

8. 11 Stesalit Frames Preamplifiers Iron Frame Mylar Cover

9. Gas Mixture of MWPCs - Noble gases – Low electric field - The suitable gas- Argon- Polyatomic gases - 80 % Argon and 20 % CO 2

10. RMH System RMH ModuleCrate EncoderControl Unit

11. -CAMAC Package Branch Receivers System Encoder Interface

12. - A sample of preamplifier 32 wire channels

13. RMH System Layout-1

14. Branch Receivers System Encoder Interface RMH System Layout-2 RMH Modules Crate encoder Control Unit

15. Efficiency of MWPC - The number of electron-ion pairs. The width of the gap. The pressure of the gas. The amount of electronegative gas. The dE/dx of the fill gas. The threshold set on the electronics. The applied high voltage. Gate width on the read out

16. Applied voltage is 2600V Some preamp slots are loosen Incorrect wire mapping Correct wire mapping is in the Appendix

17. Physics Potential of the FNAL MIPP experiment E907

18. -120 Gev Main Injector Primary protons -Secondary beams of л ±, K ±, p ± particles -TPC can measure momenta of all particles -With ToF, DIFF CHOV, and RICH, MIPP can analyze the charged particle -Some limited neutrons and photons can be measured -MIPP supplies high statistics

19. Physics Interest - Particle physics - Nuclear physics - Service measurements BC1BC2BC3 Beam Ckov1 Beam Ckov2 TPC J oly G reen G iant DC1 DC2DC3DC4 DIFF CKOV ROSIEROSIE RICH DC6 (MWPC) DC5 (MWPC) EMCALEMCAL HCALBeam TOFTOF

20. Particle Physics - Unbiased high statistics data - Non-perturbative QCD hadron dynamics - Scaling laws of particles production - Investigating light meson spectroscopy. Pentaquarks. Glueballs

21. Nuclear Physics - Investigation strangeness production - Nuclear scaling - propagation of flavor through nuclei

22. Service Measurement - Atmospheric neutrinos - Improving shower model In MARS, Geant4 - Making measurements to control the near/far systematic

23. Exclusive Reactions (Final state’s ides are known) - Angular distributions - Correlation - Exchanged system

24. Some Exclusive Reactions

25. Yusuf Oguzhan Gunaydin Thank you for your patience