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[Sphenix-physics-l] [minutes][Apr 19 Monday 8PM EDT] bi-weekly heavy flavor topical group meeting

From: "Huang, Jin" <jhuang AT bnl.gov>
To: "sphenix-hf-jets-l AT lists.bnl.gov" <sphenix-hf-jets-l AT lists.bnl.gov>
Cc: "sphenix-physics-l AT lists.bnl.gov" <sphenix-physics-l AT lists.bnl.gov>, "sphenix-maps-l AT lists.bnl.gov" <sphenix-maps-l AT lists.bnl.gov>
Subject: [Sphenix-physics-l] [minutes][Apr 19 Monday 8PM EDT] bi-weekly heavy flavor topical group meeting
Date: Tue, 20 Apr 2021 02:20:13 +0000

Intro - Hideki

MDC1 analysis is ongoing. Thanks to many analyzers and let's keep the momentum going!

Short notes on MDC1's first batch of results, so they can be shown publicly (first in APS GHP talk):

https://mmm.cern.ch/owa/redir.aspx?C=C6LNwfA1_6_zEY4qN0rGK6bYbfv8bSAyQRMWje4VTO3o8QWhCQPZCA..&URL="https%3a%2f%2fwww.dropbox.com%2fs%2fjnysp682ivnauma%2fsPH-HF-2021-001.pdf%3fdl%3d0

TG plans to make final MDC1 notes in the near future.

Ming/Xin: the importance of covering the low pT particle, in particular given the D* pT threshold will be limited by the slow pion's momentum cut off.

Jin: require low pT tracking software to do track reco around and below 0.2GeV. But glad we have the first set of plots first.

Zhaozhong: also looking at the non-prompt D final states from B decay.

Jin: will discuss the new beam use proposal in the next meeting

HF reco tools - Cameron

New tool 1- DecayFinder: select any decay chain in the HepMC records

Jin: adding an Embedding ID option can be used to enable searching over only one HepMC event in a pileup or embedding scenario. For example, https://sphenix-collaboration.github.io/doxygen/db/de8/HFJetTruthTrigger_8cc_source.html#l00090

Jin: Bring to DecayFinder coresoftware

Cameron: wait for another debug

Zhaozhong volunteered to help test

Sebastian/Cameron: the printout shows the acceptance just counting the simple kinematics cuts on the HepMC daughters, not yet including reco efficiency to make a full acceptance.

New tool 2 - Anti-trigger module, screen particular intermediate states.

Zhaozhong/Zhaozhong/Cameron: useful to select the pure background from M.B events by rejecting the rare events that contains a signal.

KFParticle update

Now also work with ANA.241 (the build currently used to analyze MDC1 data, before completing of the DST file fixes)

A new feature of record the whole decay chain history of a track

Decay parser interface to KFParticle, which describe final state selection via a formatted string.

Quick updates:

Han-sheng Li: missing sharp D0 DCA peak in the prompt D0

Cameron: plan to update truth information on vertex which helps to debug.

Suggest run in test mode with ACTS vertex finder off, which would pick up a truth vertex during production:

https://github.com/sPHENIX-Collaboration/analysis/blob/master/HF-Particle/KFParticle_sPHENIX/Fun4All_KFParticle_condorJob.C#L72

Will check with Joe on how to make ACTS vertex finder work in condor macro.

Sebastian: past test confirm that turning vertex finder off in the analysis macro recovers the sharp D0 DCA resolution: https://chat.sdcc.bnl.gov/sphenix/pl/w5rkkwu8r3b1bnaoqidk7y518c

Antonio Da Silva: currently work with ALICE HF jet, getting started with sPHENIX software

______________________________

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: Monday, April 19, 2021 9:00 AM
To: sphenix-hf-jets-l AT lists.bnl.gov
Cc: sphenix-physics-l AT lists.bnl.gov; sphenix-maps-l AT lists.bnl.gov
Subject: Re: [Sphenix-hf-jets-l] [Apr 19 Monday 8PM EDT] bi-weekly heavy flavor topical group meeting

Hi Everyone

Just a friendly reminder of the HF TG meeting tonight. Hope to talk to many of you soon.

Cheers

Jin & Hideki

______________________________

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: Huang, Jin
Sent: Friday, April 16, 2021 3:47 PM
To: sphenix-hf-jets-l AT lists.bnl.gov
Cc: sphenix-physics-l AT lists.bnl.gov; sphenix-maps-l AT lists.bnl.gov
Subject: [Apr 19 Monday 8PM EDT] bi-weekly heavy flavor topical group meeting

Hi Everyone,

This is a reminder that we will have our next HF topical group meeting on Apr 19 Monday 8PM EDT.

The agenda is https://indico.bnl.gov/event/11187/ which includes

Introduction – co-conveners
HF tool development - Cameron Dean
Analysis updates welcomed

Please join us via

Indico: https://indico.bnl.gov/event/11187/
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

______________________________

[Sphenix-physics-l] [minutes][Apr 19 Monday 8PM EDT] bi-weekly heavy flavor topical group meeting, Huang, Jin, 04/19/2021