Date: Thu, 14 Jun 2007 16:43:46 +0200
Hi, yes it must be a bad calibration... But I struggle to see what is bad. Attached is the TimeOffset calibration for the same slat (23), and also the beta vs p dist. Which is the effective speed of light in TFW2, I think I was told to set it to 13.4... Is that correct? I can see in AuAu_at_200 it is set to 25??? It this eff speed is commited before one does the time offset calib, and I think it is used in this step... though it is strange that it works for some slats and not others... Cheers, Truls On Thu, 2007-06-14 at 09:14 -0500, Kris Hagel wrote: > Truls, > I don't think it can be anything other than a bad calibration for > those slats. Since the lines are sharp, it would not be the slewing > calibration. Rather, I think it looks like the time offset > calibration. You can look at p vs beta. The high p pions should be > near 1. My guess is that you will find that the high p pions are not > at beta=1 > > Kris > > Truls Martin Larsen wrote: > > Hi, > > > > does anybody know which part of tof calibration that can make a m2 vs p > > distribution look like the one in attached file. In this setting I have > > some slats with normal distribution, and some slats that give results as > > the attached gif. This rules out any mistake in the slewing I think, as > > that is only done once. I cannot see big/significant difference in > > numbers commited to the calib DB between good and bad slats... > > > > All help and ideas appreciated! > > > > Cheers, > > Truls > > > > > > > > ____________________________________________________________________ > > > > > > > > ____________________________________________________________________ > > > > _______________________________________________ > > Brahms-dev-l mailing list > > Brahms-dev-l_at_lists.bnl.gov > > https://lists.bnl.gov/mailman/listinfo/brahms-dev-l > > _______________________________________________ Brahms-dev-l mailing list Brahms-dev-l_at_lists.bnl.gov https://lists.bnl.gov/mailman/listinfo/brahms-dev-l
