sPHENIX tracking discussion

["Osborn, Joe" <osbornjd AT ornl.gov>]

Hi Tony,

 

I looked at your slides quickly this morning – the decreased vertexing performance in D0 events is indeed from two factors:

 

1. The lower number of tracks per vertex
2. The pT of those tracks is lower. The jet events have a minimum partonic pT of 10 GeV, so they are very likely to have at least one high pT track. The D0 events have basically no minimum partonic pT, so they are going to be ccbar produced at mass threshold most of the time. Thus, the “partonic pT” of the D0 events will basically be the energy to create a ccbar pair, which will be substantially lower than 10 GeV.

Joe

 

---------------------------

 

Joe Osborn, Ph.D.

Associate Research Scientist

Oak Ridge National Laboratory

osbornjd AT ornl.gov

(859)-433-8738

 

 

From: sPHENIX-tracking-l <sphenix-tracking-l-bounces AT lists.bnl.gov> on behalf of Anthony Frawley via sPHENIX-tracking-l <sphenix-tracking-l AT lists.bnl.gov>
Date: Sunday, October 17, 2021 at 7:13 PM
To: sphenix-tracking-l AT lists.bnl.gov <sphenix-tracking-l AT lists.bnl.gov>
Subject: [EXTERNAL] [Sphenix-tracking-l] Tracking software meeting Monday October 18 at 10 am ET

Hi All,

 

We will have our usual tracking software meeting at 10 am ET tomorrow, Monday October 18.

 

The Zoom link is:

https://fsu.zoom.us/j/98126117840

 

There is an Indico page at:

https://indico.bnl.gov/event/13583/

 

I will show some slides on D0 pileup event performance.

 

Cheers

tony