sPHENIX discussion of software

["Lajoie, John G [PHYSA]" <lajoie AT iastate.edu>]

Hi Jin,

    One suggestion if you are planning to do another round of full detector simulations -

As part of this next round I would suggest you simulate the inner HCAL with flat plates *and* four scintillators per tower as opposed to the nominal five.  This has been discussed in the HCAL engineering meetings as a way to simplify the cost of the inner HCAL and get it closer to being within its budget envelope. Engineering drawings of this configuration are currently being done so vendor quotations can be solicited. Simulations for this configuration were run in the recent past and checked for energy resolution and hadron rejection, and found to have almost no effect on the performance as reported at a previous simulation meeting.

There's no hard decision to make this change yet, although personally I think it is likely. It would be prudent to produce a larger sample of simulation data with this change and have more eyes looking at the result (especially the ToG's) to make sure the conclusions of the original study remain valid.

The number of scintillators per tower is a parameter for the inner HCAL, and changing it will automatically change the tilt angle to maintain four crossings.  There's one other parameter (outer radius scintillator gap) that will also need to be adjusted.

Regards,
John

On 7/5/2016 11:19 AM, Huang, Jin wrote:

Hello Everyone

 

Due to lack of updates on GitHub and on agenda, we will cancel today’s simulation meeting, and use email discussion instead.

 

First of all, we would like to have another full detector simulation production to refresh the reference Geant4 data set. The proposed detector configuration for this production is the new reference design before descoping:

·       3-MAPS inner tracker

·       TPC

·       2-D projective SPACAL in full eta coverage

·       Inner HCal with flat plate

·       Default outer HCal

Let’s start with single particle and hijing sets in full detector, with specialized events by requests. Suggestion welcomed.

 

Meanwhile, we would like to encourage updates in the next week for:

·       Reconstruction event display - Sook Hyun Lee

·       Geometry export and integration of Kalman Filter - Haiwang and Jin

·       Tracking and multi-vertexing updates

·       SPACAL updates - Jin

·       Photon clusterizer - Brandon McKinzie

 

Cheers,

 

Jin & Chris

 

______________________________

 

Jin HUANG

 

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

From: Huang, Jin
Sent: Friday, July 1, 2016 11:50 AM
To: 'sphenix-l AT lists.bnl.gov' <sphenix-l AT lists.bnl.gov>; 'sphenix-software-l AT lists.bnl.gov' <sphenix-software-l AT lists.bnl.gov>
Subject: [reminder] sPHENIX simulation and software meeting, Tue July 5th, 1PM EST @ 2-219.

 

Hello everyone,

 

This is a reminder that we will have a regular sPHENIX simulation and software meeting, Tue July 5th, 1PM EST @ 2-219. Your updates on the meeting will be welcomed.

 

The agenda page is at https://indico.bnl.gov/conferenceDisplay.py?confId=1917    , for which the common modification password is "1008"

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

•            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

 

Happy July 4th,

 

Jin

 

 

______________________________

 

Jin HUANG

 

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

 

 

John Lajoie

Professor of Physics

Iowa State University

 

(515) 294-6952

lajoie AT iastate.edu

Contact me: john.lajoie