# Minutes for the Taskforce Meeting on CERN Testbeam Data (Dec. 8, 2022, 14:00~15:40)
* Indico page: https://indico.ihep.ac.cn/event/18496/
* Minutes: created by Yong; modified by ...
* Participants (12): Baohua, Dejing(?), Francois, Hengyu, Jiaxuan, Manqi, Siyuan, Tatsuki, Xin, Yong, Yukun, Yuzhi
* General news
* Consensus on the strategies of TB data preparations
* Two ways working in parallel
* Short term: Binary -> ROOT for quick data checks and calibrations
* Same treatment procedures for MC samples
* Mid/long term: Binary (-> ROOT) -> LCIO for more decent data treatments in the CEPC software framework
* Data after calibrations will be converted into LCIO (calibrations of pedestals, temperatures, MIP, HG/LG, etc.)
* Status/progress
* Yuzhi&Hengyu: event display using Druid with a few positron (20GeV) events in ECAL
* Color coding (rainbow scale) implemented for different hit energy depositions (MIP scale)
* Noticeable contaminations of hadronic showers in ECAL
* Yukun: prepared a draft list of the ROOT data format (TTree) after calibrations
* Siyuan
* Event display of selected events to check the event synchronisation of in ECAL and HCAL
* Observed that triggerID is not the same for ECAL and HCAL events after synchronisation: with a triggerID offset of 1
* Not conclusive on the issue whether this triggerID offset is constant for all events -> needs further investigations (2 aspects: electronics and TB data)
* Further discussions on the triggerID offset issue
* Muon data sets can be used to check whether the triggerID offset distributions
* (1) Predefine a (relatively large) triggerID window
* (2) Events are synchronised if the triggerIDs for ECAL and HCAL are in the window.
* (3) Plot the difference of trigger ID for ECAL and HCAL at event level -> Check the distributions at the run level
* Francois: made some progress on the direct raw->LCIO conversion (parsing the binary data and store them accordingly in classes in LCIO)
* Action items
* Yuzhi, Hengyu and Siyuan
* Use the same data sets (small) to check the consistency of Druid and TB event display
* Jiaxuan and Yukun
* Prepare small data sets (mu,e+,pi+) for the above consistency check
* Yukun
* Will send around a list of the ROOT data format
* TriggerID issue on ECAL/HCAL event synchronisation
* Francois and Tatsuki will have offline discussions and check the muon data
* Electronics experts will investigate and try to find possible reasons
* Francois
* Will continue to work on the direct binary->LCIO conversion