STAR QA Board

[Rongrong Ma <marr@bnl.gov>]

Hello Tong

That makes sense. Thanks for the clarification. 

Yes, if you could double check the energy values saved in the PicoDst, that will be great. 

Best

Rongrong

On Feb 26, 2021, at 5:02 PM, Tong Liu <tong.liu@yale.edu> wrote:

Hi Rongrong,

Let me chip in a bit here since I wrote most of the code here. What I did is to read the ADC, calibration gain, and the pedestal of every tower, the first two of them using the STAR DB, then I calculated the energy myself. This is actually inherited from my code written when Raghav & Dave found the pedestal bug in the p+au data, and we decided to redo the energy calculation by hand. Do you want us to also check the energy value filled in the picoDst? That should also be easy.

Tong Liu

Ph.D. Student '2023 

Physics Dept., Yale University

Tel: 203-435-2130

On Fri, Feb 26, 2021 at 1:35 PM Rongrong Ma via STAR-QAboard-l <star-qaboard-l@lists.bnl.gov> wrote:

Hello Isaac

Thanks for the nice slides. On slide 9 of your presentation today, you showed BEMC information. Are you analyzing PicoDst? Do you have a distribution of tower energy distribution? The reason I am asking is that Grigory recently fixed the issue of no BEMC information stored in PicoDst when it is produced from DAQ. Your plots confirm the fix if you are indeed using PicoDst. However, he also mentioned that "The ADC information is properly filled. The energy for each tower is zeroed.", which seems different from what you observed as you get towers above 200 MeV.

Thanks.

Best
Rongrong

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