[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Comparison of March2007 and March2008 tracking resolution
Hi David and Elke -
If I had to guess on the degredation, some of it is shortening the CDC and
then moving the FDC forward. It essentially shifts the exact location of
when the FDC packages come into play to somewhat larger angles.
Curtis
On Sun March 16 2008, Elke-Caroline Aschenauer wrote:
> On Sun, 16 Mar 2008, David Lawrence wrote:
>
> David,
>
> thanks a lot for the plots. But I must admit it is pretty shocking result.
> Apart from p=1 and angles below 20 degrees nothing really changed a lot.
> And for this region I know you always claimed things were not under
> control with track fitting or what ever at this moment. Also do you
> understand why at certain areas 2007 is even better.
>
> At least sticking with the 2007 resolutions is not to bad. Which is good
> news.
>
> Cheers elke
>
>
> > Date: Sun, 16 Mar 2008 01:45:59 -0400
> > From: David Lawrence <davidl@jlab.org>
> > To: halld-tracking-hw@jlab.org
> > Subject: Comparison of March2007 and March2008 tracking resolution
> >
> >
> > Hi All,
> >
> > I have just posted some plots on the wiki comparing the March2007
> > and March2008 momentum resolutions as obtained from hdgeant. You can
> > have a look here:
> >
> > http://www.jlab.org/Hall-D/software/wiki/index.php/Comparison_of_March_2007_and_March_2008_Resolutions
> >
> > Only total momentum resolutions are shown since the angular resolutions
> > were not quite as readily available.
> >
> > Regards,
> > -David
> >
> > --
> >
> > ------------------------------------------------------------------------
> > David Lawrence Ph.D.
> > Staff Scientist Office: (757)269-5567 [[[ [ [ [
> > Jefferson Lab Pager: (757)584-5567 [ [ [ [ [ [
> > http://www.jlab.org/~davidl davidl@jlab.org [[[ [[ [[ [[[
> > ------------------------------------------------------------------------
> >
> >
> >
>
> ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
> ) `\ -
> / '. | +
> | `, Elke-Caroline Aschenauer =
> \,_ `-/ -
> ,&&&&&V Jefferson Lab +
> ,&&&&&&&&: HALL-D 12C / F381 121-A Atlantic Avenue =
> ,&&&&&&&&&&; Suite 8 Hampton, VA 23664 -
> | |&&&&&&&;\ 12000 Jefferson Ave +
> | | :_) _ Newport News, VA 23606 Tel.: 001-757-224-1216 =
> | | ;--' | Mail: elke@jlab.org Mobil: 001-757-256-5224 -
> '--' `-.--. | +
> \_ | |---' Tel.: 001-757-269-5352 =
> `-._\__/ Fax.: 001-757-269-6331 -
> +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
>
--
Professor Curtis A. Meyer Department of Physics
Phone: (412) 268-2745 Carnegie Mellon University
Fax: (412) 681-0648 Pittsburgh PA 15213-3890
cmeyer@ernest.phys.cmu.edu http://www.curtismeyer.com/