Rare event filter for SBND Production (Production PR)

[tbwester]

Description

Adds a signal filter module that is configurable for specifying common requirements for cross section signal definitions, and a workflow fcl to separate signal events into different output streams.

The intended use of the workflow fcl is to select multiple types of rare events needed for different analyses from a single large generator stage production. Currently, it saves primary pi0s (CC and NC separately), eta mesons, CC electron neutrinos, kaons, and delta-radiative decays (CC and NC separately).

Filter Module Features:

• Filter based on final state primary particles with optional KE thresholds
• Filter based on neutrino interaction properties: Nu flavor, In TPC, CC/NC, target PDG codes, modes
• Module checks a list of filters to accept events that pass one or more conditions (e.g., accept events containing particle A or particle B)

Some example signal definition configurations are added to fcls/signal_filters_sbnd.fcl.

Checklist

• Added at least 1 label from available labels.
• Assigned at least 1 reviewer under Reviewers,
• Linked any relevant issues under Developement
• Is this PR a patch for the ongoing production?

Relevant PR links

Requires sbncode PR#648 for the CC Delta radiative filter and NC Delta radiative exit fix.

Link(s) to docdb describing changes (optional)

DocDB 46087

[linyan-w]

Looks good to me! Thank you Thomas!

[lynnt20]

Thank you @tbwester!