sPHENIX MAPS tracker discussion

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

Doodle poll for new meeting time for 2021 by the end of Friday (ET): 

https://doodle.com/poll/q4n3duy3bqy2ybfz?utm_source=poll&utm_medium=link

 

Participants: Jin, Hideki, Cameron, Guanan, Long, Sanghoon, Sourav, Xin, Yuanjing, Zhaozhong

 

 

Introduction - Hideki Okawa

 

MDC1 samples related to us: pp samples with filters of HF signals, AuAu embedded sample, and use the large 0-10% AuAu sample for fake HF jet studies

 

Call for a volunteer production manager for the HF topical group. The computing team and TG will prepare the setup. And the manager submits jobs, make sure the job completes and the result data files are OK. Let us know if there is any question or volunteering for the work. 

 

 

 

PYTHIA8 tune in pp 200 GeV - Sanghoon Lim, Woohyeong Park

 

Sanghoon: Checked the charged particle yield and HF yield against data for three candidate setups. Full Pythia HepMC sample would require 75k CUP-hours to generate. 

 

Xin: any K factor and normalization of x-section? 

Sanghoon: did not use K-factor and found 42mb inelastic x-sec and reasonably good HF x-sec. 

 

 

Update on Pythia8 tune for DD correlation - Long Ma

 

Long: redid the charm and charged particle yield check under Pythia8.1 and three proposed configurations. 

 

Xin: There is v8.3 now?

Sanghoon: Pythia v8.1 comes with default to cteq5L

Long: will set up a test in RCF under the sPHENIX env. 

 

Kaon spectrum: 

Xin: star data quoted are from non-single diffractive events on the Kaon spectrum. Be cautious on additional normalization when converting to x-sections. 

Long/Jin: will double-check offline with Sanghoon on this plot. 

 

 

Update on KFParticle - Cameron Dean 

Cameron: updated KFParticle with improved modulization and IO object, ready for a pull request to coresoftware. Checked with MDC1 sample and runs OK. 

 

Slide 6: 

Jin: At exception, suggest return Fun4AllReturnCodes::ABORTRUN , so making sure the user gets notified.

 

Slide 8:

Lost half events, improve DIRA

Xin: what was the unit of decay time?

Cameron: directly from KFParticle in the unit of cm/c. Also available is decay length and user calculation of boosted decay time

 

Slide 13: 

Jin: econdary_vertex_mass_pionPID cut leads to high pT kaon preferences. Cautious in use. It maybe good for non-resonance jet/event categorization analysis as a demo by Sanghoon in b-jet tagging

 

Slide 17: 

Jin: event are filtered for D0->KPi, so not supprizing D0 has peak and others are not significant

 

Follow up: give a talk in simulation meeting tomorrow to request join coresoftware: https://indico.bnl.gov/event/7445/   

 

 

 

 

______________________________

 

Jin HUANG

 

Physicist, Ph.D.

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

From: sPHENIX-HF-jets-l <sphenix-hf-jets-l-bounces AT lists.bnl.gov> On Behalf Of Huang, Jin
Sent: Sunday, December 13, 2020 11:50 AM
To: sphenix-hf-jets-l <sphenix-hf-jets-l AT lists.bnl.gov>
Cc: sphenix-maps-l AT lists.bnl.gov
Subject: [Sphenix-hf-jets-l] [Dec 14 Monday 7PM ET] bi-weekly heavy flavor topical group meeting

 

Hi Everyone,

 

This is a reminder that we will have our next HF topical group meeting on Dec 14 Monday 7PM ET.  

 

This will be the last meeting of the calendar year and we will focus on the coming MDC1 preparation:

 

• Event generator tuning – Sanghoon and Long
• KFParticle update – Cameron

 

Please join us via

Indico: https://indico.bnl.gov/event/10309/

ZOOM connection: https://bnl.zoomgov.com/j/1613938007?pwd=QjYzUnpYQ2xNZWZLSy9qd3Z4dFpzZz09

 

We look forward to talking to you all at the meeting.

 

Best regards,

 

Hideki & Jin

 

 

 

______________________________

 

Jin HUANG

 

Physicist, Ph.D.

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________