Message-Id: <200109200621.PAA16462@neutrino.kek.jp> To: e362scifi cc: lbkek Subject: Minutes of SciFi weekly meeting (18/Sep/'01) Date: Thu, 20 Sep 2001 15:21:18 +0900 From: Makoto Sakuda <sakuda@neutrino.kek.jp> Subject: Minutes of SciFi weekly meeting (18/Sep/'01) 1. Schedule 2. Tracking (BJ.Kim) He reported on the study of tracking. 1) Probability of reconstructing 2nd tracks from noise He estimated them to be 3.3% for 3 hits and 8% for 2 hits. He will check further whether they are associated with real particles. 2) He also estimates the probability of reconstructing random noise tracks using muon events. 3) They propose to include in the NIM paper a figure for the efficiency of 2nd track reconstruction. -- Agreed. BJK checks where the inefficiency occurs. 2. Pixel Simulation -- Boyd He tests the pixel distributions using new calibration data. He will test the efficiency using cosmic-rays. 3. Filter Ishida tested FC3 to MC MRD events. The reduction is 8-10% consistent with that in data. Jeon showed that the reduction happenes for straight tracks (theta<11 degrees). We will stay with FC8. 4. Study on Veto pulse height -- Matuo He estimated the pulse height for muons and the 2nd tracks, using the cluster information that Yoshida made. 5. Muon spectrum with LG structure -- Boyd He updated the spectrum using Yoshida's new MC events with LG structure. We observed a shift by 50 MeV in the muon energy spectrum. 6. Jobs *) 2 hit tracks in nice.event sample (data and MC) -- Ishida *) Make MC sample with Noise +-30%. --- Iwashita *) Rescattering code -- Walter+ 7. JPS rehearsal (19/Sep/'01) -- Iwashita/Yokoyama Thank you for giving them many comments. Next SciFi Video meeting -- Oct.2 (Tues), 8:00am. //
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