Change default trigger thresholds

[EBerzin]

I am updating ldmx-sw, here are the details.

What are the issues that this addresses?

This resolves #1468. I've updated the 8 GeV default thresholds to reflect the optimized values calculated for a mu=1 Poisson beam profile, and 20 ECal layers. The 1e threshold was kept at 3 GeV, which also happens to be consistent with the optimized value (3.01 GeV).

Thresholds for 4 GeV were also updated to reflect thresholds calculated by Megan, as reported here: https://indico.fnal.gov/event/51366/contributions/225984/attachments/148282/190432/MeganLoh_multielectronTriggering.pdf

The 1e- threshold at 4 GeV was kept at 1.5 GeV.

Check List

• I successfully compiled ldmx-sw with my developments
• I ran my developments and the following shows that they are successful.

[tvami]

Thanks, I have one small comment:

[tvami]

Thanks @EBerzin !

[tvami]

Thanks @EBerzin !

Actually one more thing: can you please edit the PR description too to reflect you also changed the 4 GeV settings (with a link to the talk from Megan)

[tvami]

I'd like to trigger the full test, for that I'll move this to "draft" and back to "ready"

[tvami]

OK the only plot failing is this. I think it's expected since that's the only PU workflow we have, and the change on the plot is exactly what we change. It's actually even a bit surprising that it didnt have more visible effects downstream.

[bryngemark]

there are a few places where the trigger decision differs but I guess either a) there are no trigger pass/fail plots in the DQM b) the KS test still judges the distributions to be "from the same underlying distribution"

examples from the log diff:

  < [ trigger ] 68 debug: Got trigger energy cut 10000 for 2 electrons counted in the event.
  < [ trigger ] 68 debug: Got trigger energy sum 10147.9; and decision is pass = false
  ---
  > [ trigger ] 68 debug: Got trigger energy cut 10790 for 2 electrons counted in the event.
  > [ trigger ] 68 debug: Got trigger energy sum 10147.9; and decision is pass = true
[...]
  < [ trigger ] 334 debug: Got trigger energy cut 10000 for 2 electrons counted in the event.
  < [ trigger ] 334 debug: Got trigger energy sum 10210.8; and decision is pass = false
  ---
  > [ trigger ] 334 debug: Got trigger energy cut 10790 for 2 electrons counted in the event.
  > [ trigger ] 334 debug: Got trigger energy sum 10210.8; and decision is pass = true