ALICE3 Forward Detector update

[pkurash]

Updated code for ALICE3 Forward Detector (FD).

1. Scintillator modules placed closer to the interaction point
2. Modified eta coverage
3. Two extra Cherenkov radiator arrays

For more details, see my presentation at 7th Upgrade Week:

[alibuild]

Error while checking build/O2/fullCI_slc9 for 3101309 at 2026-09-25 08:05:

No log files found

Full log here.

[alibuild]

Error while checking build/O2/fullCI_slc9 for 95d2d94 at 2026-09-25 08:46:

No log files found

Full log here.

[alibuild]

Error while checking build/O2/fullCI_slc9 for 58dab5d at 2026-10-07 05:18:

## sw/BUILD/o2checkcode-latest/log
--
========== List of errors found ==========
++ GRERR=0
++ grep -a -v clang-diagnostic-error error-log.txt
++ grep -a ' error:'
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Detectors/Upgrades/ALICE3/FD3/simulation/src/Detector.cxx:383:12: error: statement should be inside braces [readability-braces-around-statements]
++ [[ 0 == 0 ]]
++ exit 1
--

Full log here.

[alibuild]

Error while checking build/O2/fullCI_slc9 for 6c80154 at 2026-10-12 03:51:

## sw/BUILD/o2checkcode-latest/log
--
========== List of errors found ==========
++ GRERR=0
++ grep -a -v clang-diagnostic-error error-log.txt
++ grep -a ' error:'
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Detectors/Upgrades/ALICE3/FD3/simulation/src/Detector.cxx:383:12: error: statement should be inside braces [readability-braces-around-statements]
++ [[ 0 == 0 ]]
++ exit 1
--

Full log here.

[alibuild]

Error while checking build/O2/fullCI_slc9 for 7bb02fa at 2026-10-13 14:27:

## sw/BUILD/o2checkcode-latest/log
--
========== List of errors found ==========
++ GRERR=0
++ grep -a -v clang-diagnostic-error error-log.txt
++ grep -a ' error:'
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Detectors/Upgrades/ALICE3/FD3/simulation/src/Detector.cxx:383:12: error: statement should be inside braces [readability-braces-around-statements]
++ [[ 0 == 0 ]]
++ exit 1
--

Full log here.

[njacazio]

Hi @pkurash many thanks! Would it be possible to rebase to the dev branch? I have the feeling that we changed things already. You can try this with git pull --rebase upstream dev or similar? You can let me know if you need any help! Many thanks!!

[pkurash]

Hi @pkurash many thanks! Would it be possible to rebase to the dev branch? I have the feeling that we changed things already. You can try this with git pull --rebase upstream dev or similar? You can let me know if you need any help! Many thanks!!

Hello, I have tried this command, the pull created conflicts which I resolved manually with mergetool and removed *orig files, now I have "HEAD detached from refs/heads/new_geometry"