Message-Id: <200101200841.RAA22688@neutrino.kek.jp> Subject: Re: Reminder of SciFi weekly meeting next week Date: Sat, 20 Jan 2001 17:41:43 +0900 From: Makoto Sakuda <sakuda@neutrino.kek.jp> > Date: Sat, 20 Jan 2001 03:22:00 -0500 (EST) > From: Chang Kee Jung <alpinist@ale.physics.sunysb.edu> > To: Makoto Sakuda <sakuda@neutrino.kek.jp> > cc: e362scifi@neutrino.kek.jp > Subject: Re: Reminder of SciFi weekly meeting next week > > Dear Sakuda-san: > > Do you periodically check the alignment of the Sci-fi detector? > I would think that we will need new alignment constants for every six > months or so. Or, do you have an evidence that the alignment constants > don't change at all? > > Just curious... > Chang Kee > Dear Chang-Kee, This is a good point. Since we check the detector performance every two weeks using cosmic-ray data, we will install a plot of the residual distributions (track - hit) as well. Bockjoo, can you check it? Ishida checks the stability of the detector occasionally using cosmic-ray data and check plots of efficiency and pulse height. It is nice to add a plot of residual distributions (mean and sigma) using Kalman filter in the near future. Regards, M.Sakuda > On Sat, 20 Jan 2001, Makoto Sakuda wrote: > > > Dear SciFi members, > > > > Meeting next week is held on Friday or Saturday at 9am. > > Tell me your schedule. > > > > This week, we summarized the efficiency of MUC3d and 1L > > events. We study MUC-2L events and low energy 2-track events > > too. > > We begin to understand a difference in the energy loss for muon. > > We did not take into account the energy > > loss of some materials in the detector, such as aluminum in > > MRD and aluminum/honeycomb in SciFi etc. > > > > Here's a tentative agenda for SciFi talks at Collaboration meeting. > > SciFi talks: > > Feb.17 (Morning session) > > 1. Data/MC and N-Sk expected for MUC-3d > > A quick look at Y2001 data > > 2. Tracking performance summary > > > > Feb.17 (Morning session) 9:00-11:00 > > > > 3. Event selection of MUC events and QE selection > > * Summary of event rate and efficiency vs neutrino energy > > * Delta-x (MUC) and delta-theta distributions > > * Comparison of distributions in data and MC (NEUT) > > > > 4. Neutrino spectrum measurement > > Procedure and systematic errors > > > > 5. Study of 2-tracks events > > > > 6. Summary > > > > // > > > > > > ------- End of Forwarded Message > > > > >
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