[ALICE3] alice3 dilepton: machinery for study with LUTS based on ACTS

[rbailhac]

alice3 dilepton: machinery for study with LUTS based on ACTS, making further smearing and PID efficiency based on histograms in ccdb

[github-actions]

O2 linter results: ❌ 16 errors, ⚠️ 99 warnings, 🔕 0 disabled

[alibuild]

Error while checking build/O2Physics/code-check for f441c18 at 2026-07-13 13:06:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 42 errors and 8 warnings.'
Found 42 errors and 8 warnings.
++ [[ 42 -gt 0 ]]
++ cat /sw/BUILD/900f334156aa8bf2fedc64320afd8a0dbf095f67/O2Physics-code-check/errors.txt
ALICE3/TableProducer/alice3-dileptonsmearing.cxx:20:1: error: included header TrackSelectionTables.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/TableProducer/alice3-dileptonsmearing.cxx:40:1: error: included header array is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/TableProducer/alice3-dileptonsmearing.cxx:54:8: error: constructor does not initialize these fields: rnd, ccdb [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
ALICE3/TableProducer/alice3-dileptonsmearing.cxx:149:24: error: redundant boolean literal in conditional assignment [readability-simplify-boolean-expr,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:33:1: error: included header Vector4D.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:44:8: error: constructor does not initialize these fields: inspdg [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:46:3: error: no header providing "o2::framework::Service" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:48:3: error: no header providing "o2::framework::Configurable" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:66:44: error: no header providing "o2::framework::OutputObjHandlingPolicy" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:68:13: error: no header providing "o2::framework::InitContext" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:70:11: error: no header providing "o2::framework::AxisSpec" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:80:43: error: no header providing "TMath::TwoPi" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:86:56: error: no header providing "o2::framework::kTH1F" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:93:63: error: no header providing "o2::framework::kTH2F" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:368:3: error: no header providing "PROCESS_SWITCH" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:459:7: error: no header providing "o2::framework::HistogramConfigSpec" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:459:34: error: no header providing "o2::framework::HistType" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:463:20: error: no header providing "THnSparse" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:568:11: error: do not use 'else' after 'return' [readability-else-after-return,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:625:15: error: no header providing "ROOT::Math::PtEtaPhiMVector" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:892:3: error: no header providing "o2::framework::Partition" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:17:1: error: included header OTFCollision.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:23:1: error: included header TrackSelectionTables.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:32:1: error: included header Utils.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:35:1: error: included header Vector4D.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:46:8: error: constructor does not initialize these fields: inspdg [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:48:3: error: no header providing "o2::framework::Service" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:50:3: error: no header providing "o2::framework::Produces" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:51:3: error: no header providing "o2::framework::Configurable" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:54:44: error: no header providing "o2::framework::OutputObjHandlingPolicy" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:56:13: error: no header providing "o2::framework::InitContext" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:58:100: error: no header providing "o2::framework::kTH1F" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:80:22: error: no header providing "std::abs" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:115:3: error: no header providing "PROCESS_SWITCH" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:119:8: error: constructor does not initialize these fields: inspdg [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:141:27: error: no header providing "uint16_t" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:153:3: error: no header providing "o2::framework::Partition" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:160:11: error: no header providing "o2::framework::AxisSpec" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:165:43: error: no header providing "TMath::TwoPi" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:170:72: error: no header providing "o2::framework::kTH2F" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:315:21: error: no header providing "ROOT::Math::PtEtaPhiMVector" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:318:89: error: no header providing "M_PI" is directly included [misc-include-cleaner,-warnings-as-errors]
[0 more errors; see full log]

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for 01fe487 at 2026-07-13 14:26:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 38 errors and 8 warnings.'
Found 38 errors and 8 warnings.
++ [[ 38 -gt 0 ]]
++ cat /sw/BUILD/58393def9297f15fcded71afe8bef1dd7c0b6f9e/O2Physics-code-check/errors.txt
ALICE3/TableProducer/alice3-dileptonsmearing.cxx:52:8: error: constructor does not initialize these fields: ccdb [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
ALICE3/TableProducer/alice3-dileptonsmearing.cxx:145:24: error: redundant boolean literal in conditional assignment [readability-simplify-boolean-expr,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:34:1: error: included header Vector4D.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:35:1: error: included header TH1F.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:36:1: error: included header TH2F.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:49:8: error: constructor does not initialize these fields: inspdg [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:51:3: error: no header providing "o2::framework::Service" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:71:44: error: no header providing "o2::framework::OutputObjHandlingPolicy" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:73:13: error: no header providing "o2::framework::InitContext" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:75:11: error: no header providing "o2::framework::AxisSpec" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:91:56: error: no header providing "o2::framework::kTH1F" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:98:63: error: no header providing "o2::framework::kTH2F" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:461:7: error: no header providing "o2::framework::HistogramConfigSpec" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:461:34: error: no header providing "o2::framework::HistType" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:570:11: error: do not use 'else' after 'return' [readability-else-after-return,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:627:15: error: no header providing "ROOT::Math::PtEtaPhiMVector" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-dilepton.cxx:893:3: error: no header providing "o2::framework::Partition" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:17:1: error: included header OTFCollision.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:23:1: error: included header TrackSelectionTables.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:32:1: error: included header Utils.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:35:1: error: included header Vector4D.h is not used directly [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:46:8: error: constructor does not initialize these fields: inspdg [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:48:3: error: no header providing "o2::framework::Service" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:50:3: error: no header providing "o2::framework::Produces" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:51:3: error: no header providing "o2::framework::Configurable" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:54:44: error: no header providing "o2::framework::OutputObjHandlingPolicy" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:56:13: error: no header providing "o2::framework::InitContext" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:58:100: error: no header providing "o2::framework::kTH1F" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:80:22: error: no header providing "std::abs" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:115:3: error: no header providing "PROCESS_SWITCH" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:119:8: error: constructor does not initialize these fields: inspdg [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:141:27: error: no header providing "uint16_t" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:153:3: error: no header providing "o2::framework::Partition" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:160:11: error: no header providing "o2::framework::AxisSpec" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:165:43: error: no header providing "TMath::TwoPi" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:170:72: error: no header providing "o2::framework::kTH2F" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:315:21: error: no header providing "ROOT::Math::PtEtaPhiMVector" is directly included [misc-include-cleaner,-warnings-as-errors]
ALICE3/Tasks/alice3-prefilterdilepton.cxx:318:89: error: no header providing "M_PI" is directly included [misc-include-cleaner,-warnings-as-errors]
++ [[ 8 -gt 0 ]]
++ cat /sw/BUILD/58393def9297f15fcded71afe8bef1dd7c0b6f9e/O2Physics-code-check/warnings.txt
ALICE3/Tasks/alice3-dilepton.cxx:496:27: warning: statement should be inside braces [readability-braces-around-statements]
ALICE3/Tasks/alice3-dilepton.cxx:498:27: warning: statement should be inside braces [readability-braces-around-statements]
[0 more errors; see full log]

Full log here.

[rbailhac]

Hi @njacazio ,
here is a pull request to add the possibility for the ALICE 3 dielectron studies to run with LUTs based on ACTS with in addition a after-burner to better smear the momentum according to ACTS (based on 2D maps in the ccdb) and the possibility to add from outside PID efficiencies (2D histos in the ccdb) based on full simulation.

Could you have a look maybe ? Am I supposed to fix all the output of the checked etc... ? I tried to reduce them a bit but there are still some.

Thanks,
Raphaelle