sPHENIX MAPS tracker discussion

["Huang, Jin" <jhuang AT bnl.gov>]

Hi, Everyone

 

Following the discussion in task force meeting this morning, this is to introduce a special tracking macro that allow us to play with material distribution and detector resolution with a fast Kalman filter module using G4-hits as inputs.

 

The tracking macro is located in this git macro branch:

https://github.com/sPHENIX-Collaboration/macrosIDTF/blob/MultipleScatteringPlayGround/macros/g4simulations/G4_Tracking.C  

 

Here MVTX and INTT are approximated with thin cylinders filled with air. Nevertheless, we can change line 176 and 234 to introduce more mass for comparison of various multiple scattering strenth. The tracking module is based on PHG4TrackFastSim  as developed by Haiwang and Carlos for fast EIC tracking evaluations. It grab the G4Hits and smear them by resolution in cylindrical coordinates given in line 414. The interpretation of the fast sim track require an analysis module  https://github.com/sPHENIX-Collaboration/analysis/tree/master/Tracking/FastTrackingEval, which can be updated to include the projection of track to given radius.

 

Welcome to give a try in your study of separting resolution and multiple scattering effects and let me know if there is any question.

 

Cheers

 

Jin

 

______________________________

 

Jin HUANG

 

Associate Physicist

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

From: Christof Roland <christof.roland AT cern.ch>
Sent: Tuesday, November 13, 2018 1:21 PM
To: Huang, Jin <jhuang AT bnl.gov>
Cc: Ross Corliss <rcorliss AT mit.edu>; Todoroki, Takahito <todoroki AT rcf.rhic.bnl.gov>; Carlos Perez <carlos.perezlara AT stonybrook.edu>; Anthony Frawley <afrawley AT fsu.edu>; Chiu, Mickey <chiu AT rcf.rhic.bnl.gov>; Sanghoon Lim <sanghoon.lim AT colorado.edu>; Molly Taylor <mitay AT mit.edu>; sphenix-intt-l AT lists.bnl.gov; sphenix-maps-l <sphenix-maps-l AT lists.bnl.gov>; sookhyun lee <dr.sookhyun.lee AT gmail.com>
Subject: Meeting of the Inner Tracker Task Force Tomorrow

 

Hi Everybody, 

 

tomorrow we will have the next meeting of the Inner Tracker Task Force. 

 

The main topics we still need to discuss are:

- Status of finalizing the figures for the final report

- Consistent (g)track cuts in the various analysis

- Simultions with dead channels

 

The indico page, bluejeans link and google doc can be found here:

 

https://indico.bnl.gov/event/5249/

 

https://bluejeans.com/553808487/

 

https://docs.google.com/document/d/17PJdu94Ydg25V-cTHIYfSbkfojH4ZUEfsfoZPm0RDb0/edit

 

See you tomorrow!

 

   Christof