sPHENIX tracking discussion

[Haiwang Yu <yuhw.pku AT gmail.com>]

Dear all,

I investigated the tracking and DCA resolution after meeting.

It turns out there are large biases at low momentum caused by grass and likelihood fitting(page 1). I tripled the bin size and changed to chi2 fitting, now this looks much better. (from original page 2 shown in the simulation meeting to plots on page 3).

Momentum resolution at low end looks better now, still not very good at high end.

Will do more investigation.

Sorry for the confusion in the simulation meeting,

Haiwang

On Mon, May 22, 2017 at 1:33 PM Huang, Jin <jhuang AT bnl.gov> wrote:

Hello everyone,

 

We will have a regular sPHENIX simulation and software meeting, Tue May 23th, 1PM EST @ 2-219.

 

Again the topic of the meeting will be software version tag for the first set of production. We would expect update on both EMCal and tracking groups.

 

The agenda page is at https://indico.bnl.gov/conferenceDisplay.py?confId=2694  , for which the common modification password is "1008"

•         For residents at BNL, we will meet at the 2-219 conference room if not closed for snow

•         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

 

Looking forward to talking to you.

 

Cheers,

 

Jin

 

 

______________________________

 

Jin HUANG

 

Associate Physicist

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

_______________________________________________
sPHENIX-software-l mailing list
sPHENIX-software-l AT lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/sphenix-software-l

Attachment: KalmanPatRec_2017-05-23_simulation_meeting_after.pdf
Description: Adobe PDF document