Wouter Deconinck

A current selection of live-update gdml files is at https://eic.github.io/epic/artifacts, with in particular (deep links may become invalid on months timescales): - https://eic.github.io/epic//artifacts/gdml/epic_calorimeters.gdml: all calorimeters, including tessellated barrel hadronic calorimeter,...

It's faster for the navigator to determine volume boundary intersections when everything is in simple envelopes. For the insert, due to the slanted and expanding proton beam pipe, that's not...

@ShujieL Can you post some more diagnostics here since you already started looking into it?

Can you rerun one specific event with the track reconstruction in debug log level and analyze whether the hit even gets turned into a measurement? We know that for slanted...

Interesting. Please post more as you find out more.

Because the [SiliconTrackerDigi](https://github.com/eic/EICrecon/blob/main/src/algorithms/digi/SiliconTrackerDigi.cc) is used for the MPGDs, the only reasons why sim hits may not turn into sim hits are: - they are below energy threshold (https://github.com/eic/EICrecon/blob/0e1566c91b04605618c4571e72c3cfba18b2cb11/src/algorithms/digi/SiliconTrackerDigi.cc#L62-L64), - they...

With a threshold of 0.25 keV, that is the main reason for cutting MPGD hits here. Below is a plot of the energy deposition for simulated hits, in x-axis units...

Yeah, I didn't know you were going to present on this exact issue today :-)

Since the patch context indicates that something similar is already done for Linux with `$ORIGIN` [1], do you think it makes sense to submit a pull request to ROOT so...

I think it's the `gnuinstall` option, https://root.cern/install/build_from_source/#all-build-options. That forces gnu file hierarchy standard, which places libraries in lib/root.