sPHENIX tracking discussion

[Christof Roland <christof.roland AT cern.ch>]

Ok,

here are the first results for the update of the cluster cleaner. 

The cut in adc seems to do as well, if not better than a cut in rphi cluster error. 

See plots attached below. 

We may hve to retune the errors for high adc or use a different selection 

of clusters for pattern recognition and track fitting. 

cheers

   Christof 

Attachment: ClusterCleanr.pptx
Description: application/vnd.openxmlformats-officedocument.presentationml.presentation

On 29. Mar 2022, at 17:11, Osborn, Joe <osbornjd AT ornl.gov> wrote:

Hi Christof,

 

I just do

 

ntp_gtrack->Draw(“pt/gpt:gpt>>gr(40,0,40,400,0.5,1.5)”,”quality<10”,”colz”);

gr->FitSlicesY();

TH1 *width = (TH1*)gDirectory->Get(“gr_2”);

 

To get the resolution. If there are a lot of files I just chain them together with hadd, if you want me to do it I can but it’s not anything fancy.

 

Joe

 

---------------------------

 

Joe Osborn, Ph.D.

Associate Research Scientist

Oak Ridge National Laboratory

osbornjd AT ornl.gov

(859)-433-8738

 

 

From: Christof Roland <christof.roland AT cern.ch>
Date: Tuesday, March 29, 2022 at 10:42 AM
To: Christof Roland <christof.roland AT cern.ch>
Cc: Osborn, Joe <osbornjd AT ornl.gov>, Hugo Pereira Da Costa via sPHENIX-tracking-l <sphenix-tracking-l AT lists.bnl.gov>
Subject: [EXTERNAL] Tuning of cluster cleaning parameters

Hi Joe,

to tune the cut on cluster ADC for the tuning of the cluster cleaner I have a fewe more evaluator files
for whih I would like to know the momentum resolution. Is your momentum resolution plotting macro
is easy enough to use would you mind sharing it? If not could you plot the resolutions for the following files:

/phenix/u/bogui/data/MacrosFileSize/macros/detectors/sPHENIX/TracksPu50/
TrackingPara4_1_1*.root
TrackingPara5_1_1*.root
TrackingPara6_1_1*.root
TrackingPara7_1_1*.root

Thanks a lot

   Christof