sPHENIX is a new detector at RHIC.

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

Brief meeting as advertised. Minutes as following:

 

Recent repository updates - All

 

Merged pull requests:

·       Trace truth into HEPMC records : https://github.com/sPHENIX-Collaboration/coresoftware/pull/216

·       Support a large set of EIC event generator via EIC smear package: https://github.com/sPHENIX-Collaboration/coresoftware/pull/217

Coming pull requests:

·       MAPS 3-D model by Tony

·       New tower geometry by Chris

 

Action Item [Volunteer needed]: build EIC event generator records on node tree and support trace G4 history into EIC event generators, as what we support for HEPMC event generator records.

Action Item [Jin]: response cell ID need from SPACAL. The answer is 32 bit in order to PHG4CylinderGeom_Spacalv3::scint_id_coder

 

Martin:

·       RC DAQ plugins are now uploaded to GitHub as new repositories

·       Dropbox enterprise is available for our evaluation. Potential user please contact Martin for instruction of setting up accounts.

 

Chris:

·       For newer realistic detector, we should encourage use of new geometry class other than derivatives of the cylindrical geometry ().

 

 

3-D DCA - Haiwang Yu

 

Slide 3: illustration of DCA 3D

 

Slide 4: verification of rotation

Jin: please double check discrepancy in the off diagonal terms

 

Slide 5/6/7: observed discretized DCA_z, which trace to silicon detector segmentation.   

Jin: please introduce X,Y,Z vertex smearing in the simulation to average out these discretization effect

 

Slide 7: Still observed a down-going trend of pull width at low pT

Haiwang: had difficult to run the suggested Geantino test with aim to separate geometry origin or multiple scattering origin

Chris: plan to fix it in particle generator.

 

Plan:

·       Pull request on a few recent developments

·       Fix remaining memory leak in the new GenFit module

·       Run HIJING with b-tagging

 

Chris: for the memory leak, if need to run right now, we can try high memory job: https://wiki.bnl.gov/sPHENIX/index.php/Condor  

 

 

 

 

______________________________

 

Jin HUANG, Ph. D.

 

Associate Physicist

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

From: Huang, Jin
Sent: Monday, November 28, 2016 4:32 PM
To: 'sphenix-software-l AT lists.bnl.gov' <sphenix-software-l AT lists.bnl.gov>; 'sphenix-l AT lists.bnl.gov' <sphenix-l AT lists.bnl.gov>
Subject: [reminder] sPHENIX simulation and software meeting, Tue Nov 29nd, 1PM EST @ 2-219

 

Hello everyone,

 

This is a reminder for a brief sPHENIX simulation and software meeting, Tue Nov 29nd, 1PM EST @ 2-219

 

Currently on agenda is continue the study of last week:

•            3-D DCA fitting and b-jet tagging  - Haiwang Yu

Please let us know if you have further topics to be presented at this meeting.  

 

The agenda page is at https://indico.bnl.gov/conferenceDisplay.py?confId=1938  , for which the common modification password is "1008"

•            For residents at BNL, we will meet at the 2-219 conference room

•            To join the Meeting via phone bridge:  https://bluejeans.com/619960505 

•            To join via Phone:

1) Dial:

        +1.408.740.7256

        +1.888.240.2560(US Toll Free)

        +1.408.317.9253(Alternate number)

        (see all numbers - http://bluejeans.com/numbers)

2) Enter Conference ID: 619960505

 

Cheers,

 

Jin

 

 

______________________________

 

Jin HUANG, Ph. D.

 

Associate Physicist

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________