AP for Run 3 prompt double neutral charm [D to N-body Dbar to N'-body] studies (N(')={2,3,4})

AP for prompt double neutral charm [D to N-body Dbar to N'-body] studies (N(')={2,3,4}) in 2024 sprucing data.

To-do List

• Mark as "Draft:" until you're happy with the CI results
• Add a label for a WG
• If the merge request supersedes a previous one, add a comment at the end of the header: (supersedes !<MR number>). Please state explicitly in the description if the superseded ntuples can be deleted immediately, or after the new merge request is finalised

When ready:

• Remove the "Draft:" from the title:
• Assign the merge request to a working group's DPA/RTA liaison

To find a working group's DPA/RTA liaison, see this page: https://twiki.cern.ch/twiki/bin/viewauth/LHCbPhysics/LHCbWGLiaisons