[Clas12_rgb] RGB meeting tomorrow - and "pass3" discussion

[silvia]

Dear all,
tomorrow we'll have our weekly RGB meeting, at 8:30AM Jlab time, zoom 
link: https://jlab-org.zoomgov.com/j/1610535722
Please let me know if you plan to present something.
We'll also have to discuss on the pass3 perspectives, following the 
email (which I copy here below for your convenience) that Bryan sent out 
a few days ago. Please start thinking about the questions below as we'll 
have to get back with answers to the CCC and CalCom.
Thanks a lot and see you tomorrow.
Best regards,
Silvia
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Dear Run Group Coordinators (all other members for information)

With many run groups having thoughts, and making progress towards, 
further rounds of calibrations and reconstruction, we are writing to 
provide context and outline the initial steps that the CCC will be 
taking in order to bring a more formalised structure and approach 
towards this process. Primarily the aim is to avoid premature 
recalibration requests that could result in repeated passes, and to 
ensure that CALCOM is fully supported in its decisions requiring 
prioritisation of recalibration and recooking.

We need to be mindful that ongoing improvements in calibration and 
reconstruction are consolidated before initiating new recalibration 
requests whilst also recognising that this is an optimal time to focus 
on preparations and recalibrations given that CALCOM now has 
availability, with RG-L (FD) efforts concluding and no new CLAS12 
running in 2026.

During the November collaboration meeting, there will be a dedicated 
session in which run group coordinators will present the status and 
supporting case for future recalibration and recooking. These reports 
will then lead to subsequent discussions of physics-driven priorities 
and realistic timelines. The intended outcome is for the CCC to 
establish a broadly agreed priority ordering of recalibration/recooking.

In order to make some initial progress, we are asking you to give 
thought towards the following questions, the answers to which should be 
presented during the meeting session:

- What is your available person-power, for example: a chef and 
coordinator who will follow the process in its entirety; students or 
postdocs to analyse and assess the data quality and perform validation 
studies, are any new analyses expected to be triggered by the process?

- On what preferred timescale do you envisage recalibration/recooking of 
your data to be of most use, for example to maintain a current standard 
between data sets or to wait for future additional improvements?

On the part of the CCC/CALCOM, we will circulate a status document 
containing current and near-future improvements to calibrations and 
reconstruction including any remaining open questions or caveats. This 
document will be circulated on a timescale coinciding with the 
collaboration meetings  and run group coordinators will be asked to 
address an additional question, during the discussion session, based on 
this:

- Which of these improvements would your run group most benefit from to 
produce higher quality physics output based on the new data set?

Efforts in producing well calibrated and processed data sets is in all 
of our best interests and must be coordinated within the collaboration 
as a whole. Your input will be critical to ensure the efficient use of 
resources and maintaining consistent standards across run groups.

Many thanks and regards

Bryan (on behalf of the CCC and CALCOM)