1. Software parallel session summary MICE collaboration meeting INFN, Frascati 27/6-05

2. MICE Meeting in Frascati Software & Simulation Working Group draft agenda Monday 27, June - 14:30 - 17:30 - LNF, Room B34 14:30 -G4 MICE Steps/Stage/Phases Y. Torun Optics Progress ReportC. Rogers TOF and Ckov UpdateS. Kahn EMCal StatusR. Sandstrom Physics List and GEANT 4R. Sandstrom (somebody for) Status of G4 MICE fro KEK Beam Test M. Ellis Detectors for KEK Beam Test A. Klier Package Managers: Review of Package Status - 17:30Action Items and ScheduleAll back to the mice05 web site

8. Status of TOF and Ckov Sub- packages in G4Mice Steve Kahn 27 June 2005

9. TOF Digitization Response Algorithm Signal amplitude at PMTs: These responses are converted to digits (adc counts) Signal time at PMTs: t track is the time of the track through the scintillator t decay is an exponentially distributed scintillator decay time t PMT jitter is a gaussian distributed PMT resolution time. These responses are converted to digits (tdc counts) transit time No attempt yet to track scintillator photons

10. Cherenkov Systems Geometry Should be up-to-date Upstream Ckov –C 6 F 14 radiator with n=1.25 –4 PMTs 2 on top, 2 on bottom. –Threshold cherenkov: 0.7 MeV for electrons 140 MeV for muons 190 MeV for pions Downstream Ckov –Aerogel with n=1.03 (Should use 1.04) –12 PMTs on 12-sided polygon. –Typically on electrons visible since pion threshold is > 500 MeV. –Requires TOF coincidence.

11. Photon Generation in the Cherenkov Detectors For each track that crosses the radiator with a velocity above threshold a number of photons are generated proportional to the deposited energy. We currently do not use the Cherenkov photon facility in Geant4. –There is some question as to how well it works with reflective surfaces. Imaginary photons are generated in a cone (at the č angle) around the particle direction. Since all mirrors are at 45º w.r.t. the beam direction, we can position the PMTs on an imaginary plane. –The č photons that intercept the PMT circles are “seen”. –Note that Ckov1 has an angle of 53°. The circles should be ellipses. This has not yet been taken into account Note that Ckov2 has 12 PMTs whereas Ckov 1 has only 4 PMTS.

12. G4MICE downstream distributions G4MICE plans Rikard Sandström Universite de Geneve MICE collaboration meeting 27/6-05

13. CKOV2 x-y distribution

14. Planning ahead, spill structure Add option to run MICESpill, not only MICEEvent. Need decision on trigger! How to set RF phases? Converge with Malcolm et al. –Need a dedicated meeting. Detector code will need to change. –Only TPG OK already to my knowledge.

15. Planning ahead, run all BG When we can do spill, run with: A –EMCal, how well can it handle multiple events, pile up etc. B –Beam starting at TOF1. –Diffuser, iron shield etc. –Pion contamination (decay on) –Muon decay on –RF bg from background bank –Taking p_t, p_z and TOF from real reconstruction. –Result: realistic emittance resolution! One year from now?

16. Spill structure Simulation –Changes needed5 days EngModel –Change & check RF5 days DetModel –Minimal changes0 days? DetResp –Change all detectors5x10 days Recon –Change/add recon for all detectors5x50 days ~300 mousedays!