> ... Anyone interested in my comparisons of the DOCA for gsim
> and recsis can get the latest results on my webpage at
> http://www.phys.cmu.edu/~mcnabb/physics/docagvsr.html
> Comments and or suggestions about this would be much appreciated.
Hi John,
I just looked through your page again, and noticed the May 28 addition.
For the benefit of the cc list, you write
"I have new plots (docadiff vs thetaand phi) of what happens when I
manually force recsis to use the same step size as gsim. Doing so
qualitatively solves the previous discrepencies in the docas to <50
microns most everywhere. This leads me to conclude that the track
swimming routines are for our purposes identical. The next step will be
to see if the vertex charge dependence is still a problem in the gsim
data, using this step size."
I certainly agree that this is encouraging, and that the swimming
routines are effectively the same IF the step sizes are identical. I'm
anxious to know what happens to the charge dependence with this change.
What was the change in the RECSIS step size that you used? Does it make
a big difference in the speed of the track fitting procedure? It is
probably worth testing this change on the data as well - if you'll
provide the necessary changes and/or code, I'm sure someone will pick
it up and see what effect it has.
Thanks for the nice work.
Jim
--
Jim Napolitano email: napolj@rpi.edu
Dept of Physics phone: (518)276-8019/6310
Rensselaer Polytechnic Institute FAX: (518)276-6680
Troy, NY 12180-3590 WWW: http://www.rpi.edu/~napolj