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[PWGDQ] improve track extrapolation in ML training data producer - #18626

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lucamicheletti93 merged 1 commit into
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aferrero2707:PWGDQ-matching-training-producer-allow-matching-downstream-of-absorber
Nov 9, 2026
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lucamicheletti93 merged 1 commit into
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aferrero2707:PWGDQ-matching-training-producer-allow-matching-downstream-of-absorber

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The standard DQ track extrapolation functions are replaced with a custom one that allows to extrapolate both the MFT and the MCH tracks to a matching plane downstream of the absorber, with proper accounting of the multiple scattering effects that are always encoded in the MCH track extrapolation errors.

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github-actions Bot commented Nov 6, 2026

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O2 linter results: ❌ 0 errors, ⚠️ 3 warnings, 🔕 5 disabled

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aferrero2707 marked this pull request as ready for review November 6, 2026 16:18
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Error while checking build/O2Physics/o2 for 77f4778 at 2026-11-06 18:14:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/mftMchMatcher.cxx:429:62: error: 'TGeoGlobalMagField' has not been declared
ninja: build stopped: subcommand failed.

Full log here.

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alibuild commented Nov 6, 2026

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Error while checking build/O2Physics/staging for 77f4778 at 2026-11-06 18:15:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/mftMchMatcher.cxx:429:62: error: 'TGeoGlobalMagField' has not been declared
ninja: build stopped: subcommand failed.

Full log here.

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alibuild commented Nov 6, 2026

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Error while checking build/O2Physics/code-check for 77f4778 at 2026-11-06 18:17:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/mftMchMatcher.cxx:429:62: error: 'TGeoGlobalMagField' has not been declared
ninja: build stopped: subcommand failed.

Full log here.

@aferrero2707
aferrero2707 force-pushed the PWGDQ-matching-training-producer-allow-matching-downstream-of-absorber branch from 77f4778 to 79aa5e2 Compare November 6, 2026 21:16
The standard DQ track extrapolation functions are replaced with a
custom one that allows to extrapolate both the MFT and the MCH tracks
to a matching plane downstream of the absorber, with proper accounting
of the multiple scattering effects that are always encoded in the MCH
track extrapolation errors.
@aferrero2707
aferrero2707 force-pushed the PWGDQ-matching-training-producer-allow-matching-downstream-of-absorber branch from 79aa5e2 to f172e5f Compare November 6, 2026 21:26
@lucamicheletti93
lucamicheletti93 merged commit 5a0ad2d into AliceO2Group:master Nov 9, 2026
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3 participants