STAR QA Board

[Benjamin Kimelman <bkimelman@ucdavis.edu>]

Hello All,

I wanted to follow up on some of our discussion from this morning's meeting regarding the drop in the pion yield in the 3.85GeV data between days 173 and 174.

I spent some time looking through the code and realized that I was only using the fit function and not the fit result in order to obtain the pion yield. This is a quirk of ROOT where the function itself does not have the same parameter values as the fit result. With this implemented, I reran the QA code for days 172-179, the resulting strip charts can be found here: https://www.star.bnl.gov/protected/lfsupc/bkimel/2021QA/AuAu_3p85GeV_FXT_2021/AuAu_3p85GeV_FXT_2021_days172_179_QA_Monitoring.pdf

On page 6 is the pion yield, which is now completely stable and there is no drop anymore on day 174. This was an artifact of our QA code that has been resolved.

Best,

Ben Kimelman

Ph.D. Candidate, Nuclear Physics Group

UC Davis

He/him/his

On Thu, Jul 1, 2021 at 6:20 PM Frank Geurts via STAR-QAboard-l <star-qaboard-l@lists.bnl.gov> wrote:

Hi,

We will have our Run21 QA meeting tomorrow (Friday) at noon (EST).  Meeting details, including the Zoom link can be found at the following event link:

https://drupal.star.bnl.gov/STAR/event/2021/07/02/run-21-qa-board-meeting

Topic: STAR QA Board

Join Zoom Meeting
https://urldefense.com/v3/__https://riceuniversity.zoom.us/j/95314804042?pwd=ZUtBMzNZM3kwcEU3VDlyRURkN3JxUT09__;!!P4SdNyxKAPE!UQPThnPkadjrVITx2CO3dT4iM5n0JqEpdLMxcq1-S2wRzHPx2UAh_OhxDcW6Z4pTi3xE_BrGFuQ$

Meeting ID: 953 1480 4042
Passcode: 2021


Best,

-Frank





______________________________________________________
Frank Geurts   (he/him/his)
Professor of Physics   • Rice University, Houston TX
T.W. Bonner Nucl. Lab. • Dept. of Physics & Astronomy
office 713-348-5314    • web https://urldefense.com/v3/__http://heavyions.rice.edu__;!!P4SdNyxKAPE!UQPThnPkadjrVITx2CO3dT4iM5n0JqEpdLMxcq1-S2wRzHPx2UAh_OhxDcW6Z4pTi3xEBiz7Qls$


_______________________________________________
STAR-QAboard-l mailing list
STAR-QAboard-l@lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/star-qaboard-l