sPHENIX is a new detector at RHIC.

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

Also available on agenda page: https://indico.bnl.gov/conferenceDisplay.py?confId=1342

 

Tips: to receive discussion on coming/merging new features (few email/day), clock "watch" in the GitHub repository: https://github.com/sPHENIX-Collaboration/coresoftware/

 

 

Production - Chris Pinkenburg

 

5k high-memory condor slots available for production.

 

Now running:

70k jobs in the queue ~ One week, for running HCal title angle with higher statistics (x20 times)

 

New request on EMCal production from Jin to get the full stat electron PID plots:

·       100k event per setting for electron ID focused study

·       full sPHENIX + full magnetic field

·       Momentum = 2/4/8 GeV/c

·       PID = e+/-, pi +/-, K +/-, proton +/-

·       Eta = 1, 0.3, 0.6, 0.9 (+0 - +0.1 in range)

·       In single particle and in embedded

 

New request on EMCal production from Megan to get the photon performance plots:

·       1k event per setting for photon performance study

·       full sPHENIX + full magnetic field

·       Momentum = full momentum range as in last production

·       PID = photon

·       Eta = 1, 0.3, 0.6, 0.9 (+0 - +0.1 in range)

·       In single particle (already have) and embedded into Hijing

 

 

Software news - Mike McCumber, Chris Pinkenburg, Jin Huang

 

Went through list of new features, added to software via merged pull request since the last meeting:

https://github.com/sPHENIX-Collaboration/coresoftware/pulls?q=is%3Apr+is%3Aclosed

 

Pull request 65: https://github.com/sPHENIX-Collaboration/coresoftware/pull/65

Chris: why evaluator intercepted a null pointer?

Mike: only NTuple maker goes through all particle. Evaluator only work on particle/hit chosen by user. For large scale analysis, user are encouraged choose make the transition at larger scale of analysis.

Mike: would like to have a flag in evaluator to impose strict check of truth association.

 

Pull request 66: https://github.com/sPHENIX-Collaboration/coresoftware/pull/66

Mike: Do we have capability to Hijing DST truth info to the embedding result without conflicting index?

Jin: If the need present, we need to add a simple module to merge the Hijing truth stream into embedded production output. It can be done because Hijing truth was removed at the very end of embedding production, which allow them to be inserted back without confliction. Nevertheless, need to check the sync between DST streams in the module.

 

 

 

EMCal pre-CDR studies - Jin Huang

 

Page 4:

Craig and John: good to change label to "using sPHENIX Geant4", instead of "in sPHENIX Geant4".

Action Item [Jin]: update the label in pre-CDR

 

Martin: what does it means "no fiber/fiber response"?

Jin: means not simulating the fiber-to-fiber variation of light collection efficiency.

 

Page 7:

Chris: what will be the configuration for calorimeter that are possible/would be build?

Jin: if we verify the design, we can produce the fiber matrix based on the simulation by design consistent screen.

 

Page 10-12:

Jin: page 10 show comparison of eta~0.3 (one of three data set) since that is the data provided to us from Oleg. If need to compare more, we need to further request.

John H.: do we concern about the constant term?

Jin: they appear to be intrinsic to the choice of sampling structure as shown in the left bottom panel in page 11. They would show up in the performance in photon unfolding performance.

 

Page 14:

John H.: what about hijing trigger?

Craig: different algorithm than pp trigger described here. Need another discussion.

 

Page 16:

Carig/John H.: how do we use these data? RMS on hijing background would be too high due to the long tail. The mean probably not useful directly to quantify the background effect.

Need photon embedding and unfolding to quantify the exact effect.

Megan: will analyze data from the embedding production.

 

Page 17:

Action Item [Jin]: Working with tracking expert to update tracking projection: https://github.com/sPHENIX-Collaboration/coresoftware/pull/69

Action Item [Chris]: Hcal azimuthal bin seems shifted by 0.5 tower. Probably related to choice of the phi angle start setting to be bin center or bin edge. Need to fix.

 

______________________________

 

Jin HUANG

 

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

> -----Original Message-----

> From: Huang, Jin

> Sent: Monday, October 5, 2015 3:36 PM

> 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 meetings, Tue Oct 6th, 1-3PM @ 3-

> 192

>

> Dear All,

>

> We will resume the weekly simulation meeting Tue Oct 6th, 1-3PM @ 3-192.

>

> Let's start the meeting with production and software updates, which will be

> followed by the pre-CDR study updates (the H-Cal talk will be delayed to 3PM

> HCal meeting due to schedule confliction). More contributions welcomed.

>

> The agenda page is at

> https://indico.bnl.gov/conferenceDisplay.py?confId=1342  , for which the

> modification password is "1008"

> •         For residents at BNL, we will meet in the 3-192 conference room.

> •         To join the Meeting via bluejeans: https://bluejeans.com/468481110

> •         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: 468481110

>

> Cheers,

>

> Jin

>

>

> ______________________________

>

> Jin HUANG

>

> Brookhaven National Laboratory

> Physics Department, Bldg 510 C

> Upton, NY 11973-5000

>

> Office: 631-344-5898

> Cell:   757-604-9946

> ______________________________