Message-Id: <200101161405.XAA05259@neutrino.kek.jp> Subject: Minutes of SciFi weekly meeting (01/Jan/16) Date: Tue, 16 Jan 2001 23:05:36 +0900 From: Makoto Sakuda <sakuda@neutrino.kek.jp> Minutes of SciFi weekly meeting (01/Jan/16) 1. Analysis *Aluminum/Water cross section ratio Park selected >2000 2-track events and studied the event rate from aluminum wall and that from water. Vertex resolution is estimated to be 1mm for x,y direction and 3mm for z direction. Cross section ratio is estimated to be consistent with 1.0 within +-0.2(stat). *He also studies the energy resulution for 2-track events. Angular resolution is +-2 deg. *Efficiency study for MUC-3d, MUC-1L, MUC-2d and LG -- Boyd He summarized the efficiency for those events as functions of energy. In (0.5,1.0) GeV bin, MUC-1L events add 7% to 5% from MUC-3d. MUC-2d is negligible. Park points out that short MUC tracks are mostly 4 hits. We must relax the cut. Iwashita will study MUC events to save short MUC tracks, starting from a SciFi track. *Walter studied range of protons to see if there is a difference from that of pions. 2. Traking Performance (B.J.Kim) We discussed over each figure and table. After considering the comments, the draft (1st version) will be distributed to SciFi members. 3. Agenda of Collaboration meeting We will decide it within a week. //
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