STT default geometry added

[nibir98]

The default STT geometry for SAND is added. The build_hall.sh script is also updated to build the geometries.

[ast0815]

If this is the new default SAND geometry, I assume we should be using it from here on out? Then it should be added to the "prod" geometries (the first two in the build script). These are the ones that get built by default and released.

Also, you need to add your changes to the "Unreleased" section of the CHANGELOG file.

[nibir98]

If this is the new default SAND geometry, I assume we should be using it from here on out? Then it should be added to the "prod" geometries (the first two in the build script). These are the ones that get built by default and released.

Also, you need to add your changes to the "Unreleased" section of the CHANGELOG file.

If you want to build SAND using STT, yes this is the default geometry. I assume all the miniprods till now has built SAND using STT? If so pls, let me know I can make the required changes

[GianfrancoIngratta]

why this option, supposed to be the default one, forsees a diffent clearances among ECAL GRAIN and the Tracker?

[nibir98]

The grain size has been updated to 902mm. The clearances are listed in the file are just guessing parameters. Here are the final parameters.
GRAIN-ECAL | 1.15 centimeter
GRAIN-STT | 11.568251845746317 millimeter
STT-ECAL | 0.0764459008996361 meter
The total STT length is 2998.4 mm. Details are included in page 11 here

[nibir98]

If this is the new default SAND geometry, I assume we should be using it from here on out? Then it should be added to the "prod" geometries (the first two in the build script). These are the ones that get built by default and released.

Also, you need to add your changes to the "Unreleased" section of the CHANGELOG file.

The changes has been implemented as requested.

[ast0815]

Looks like you actually forgot to commit the changes to the changelog.

[ast0815]

Hey, what's the status here?

[nibir98]

Hi Lukas, sorry for the delay. I talked to the SAND software group yesterday because the reco/ana codes for SAND might break with the new geometry as it contains some new volume names. We think that the we should release the new SAND geometry as a standalone instead of integrating it with the prod geometries for the moment. I will work in parallel towards the integration, and once that's done we can add it with prod.
P.S There are 2 new STT geometries (default & backup) which exist. I will release a PR by the end of this week having the 2 geometries as standalone. What do you think?
In the future we will integrate the default version with prod.

[ast0815]

I am perfectly happy if you want to keep the new geometry as an option rather than as the default. As long as it gets merged into the master branch, I am content. The rest is up for other people to decide. Will you edit this PR or will you create a new one? In the latter case we could close this one.

P.S. Don't forget the changelog.

[nibir98]

Hi Lukas, I will create a fresh PR. Thanks.