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MECO Beam Requirements

NuFact04 Osaka, 26 July- 1 Aug. 2004. MECO Beam Requirements. Yannis K. Semertzidis Brookhaven National Laboratory. Beam Requirements. Muon Momentum. MECO Requirements. Increase the muon flux (graded solenoid, MELC design) Use pulsed beam with <10 -9 extinction in between

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MECO Beam Requirements

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  1. NuFact04 Osaka, 26 July- 1 Aug. 2004 MECOBeam Requirements Yannis K. Semertzidis Brookhaven National Laboratory

  2. Beam Requirements

  3. Muon Momentum

  4. MECO Requirements • Increase the muon flux (graded solenoid, MELC design) • Use pulsed beam with <10-9 extinction in between • Detect only promising events • Have excellent momentum resolution

  5. The MECO Apparatus Straw Tracker Muon Stopping Target Muon Beam Stop Superconducting Transport Solenoid (2.5 T – 2.1 T) Crystal Calorimeter Superconducting Detector Solenoid (2.0 T – 1.0 T) Superconducting Production Solenoid (5.0 T – 2.5 T) Muon Production Target Collimators Proton Beam Heat & Radiation Shield

  6. Sign and Momentum Selection in the Curved Transport Solenoid Detection Time

  7. Expected Sensitivity of the MECO Experiment MECO expects ~ 5 signal events for 107 s running for Rme = 10-16

  8. Expected Background in MECO Experiment MECO expects ~0.45 background events for 107 s with ~ 5 signal events for Rme = 10-16

  9. Need Extinction to 10-9 Extinction at the AGS of BNL Use 6 buckets, only two of them filled with beam. Time between filled buckets: 1.35 s Measurement Time AGS Ring 20TP Extinction of 10-9 20TP

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