MICE PID SUMMARY Philosophy Redundant PID system to

MICE PID SUMMARY Philosophy: Redundant PID system to keep e, beam contaminations well below 1%, reducing systematics on the emittance measurements. • 3 TOF xy stations w 50 ps timing resolution between station pairs. • 2 Aerogel Cherenkov detectors w threshold momenta at 210 and 280 Me. V/c. • KL detector for electron id. -> e v v • EMR electron/muon ranger. 1 L. Cremaldi, MAP Meeting, Fermilab, May 30, 2014

TOF 0+CKOV (2007) TOF 1 June 2008 TOF 2/KL (2009) EMR (2013) 2

Global PID ID = TOF+CKOV+TRACKER+KL+EMR • Global PID id also involves the tracker Celeste Pidcott, U. Warwick, CM 38 3

KL ->evv pre-shower June 2008 e • Extruded Pb Foils w Sci. Fiber, 1: 2 ratio, 2. 5 Xo (KLOE) • Active area: 93 x 4 cm 3 • 21 cells w 42 readout channels in to PMT + f. ADC • t =70 ps/v. E and E/E = 7%/v. E • 80 Me. V electrons 30%stop in KL, 70% tail in EMR 4

PID Analysis paper “Particle identification in the Muon Ionisation Cooling Experiment (MICE) beam, to measure its pion contamination” Ckov_b PE response Muon beam Calibration beam 5

PID Analysis paper(cont)- very preliminary John Nugent, Glasgow, Domizia Orestano, Roma 5 Implementing Monte Carlo checks for understanding systematics: • Discrepancies are being studied. • Differences TOF values due to calibrations and TOF shapes, different population & momentum spectrum of input beam. Being tuned, results for CM 39. • Differences in KL spectra, both at low energies due to thresholds and smearing effects in digitisation and at high energy, tails cutoff in Geant 4? Being tuned, with results for CM 39. • Revised paper draft with systematics for the fall. 6

EMR muon range finder. 7 L. Cremaldi, MAP Meeting, Fermilab, May 30, 2014

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EMR - reco Discriminating variables for multivariate analysis: • Total Energy Deposited • Maximum energy in a plane • Plane id of maximum energy • Number of bars hit • Hit time • Tracking total energy deposition Ruslan Asfandiyarov, Geneva 11

Si. PMT studies for fringe fields Dear Lucien, as for the TOF as a detector there is nothing new, aside tests we are doing on Si. PMT arrays readout. Maurizio 12

Summary • PID detectors are in place and reading out at the MICE Hall. • Calibration studies are on going. • Recontruction algorithms in development. • Global MICE PID envisioned - in progress. 13 L. Cremaldi, MAP Meeting, Fermilab, May 30, 2014