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Truth Graph: Introducing Levels #51716

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cmsbuild merged 3 commits into from
Sep 3, 2026
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Truth Graph: Introducing Levels #51716

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4b6e76d
PhysicsTools, SimDataFormats/TruthInfo: open the packages for contrib…
felicepantaleo Aug 24, 2026
82c3012
SimDataFormats/TruthInfo: level flags, particle roles and recorded seeds
felicepantaleo Aug 24, 2026
c7bcd9c
PhysicsTools/TruthInfo: truth levels stamped on the logical graph
felicepantaleo Aug 24, 2026
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10 changes: 4 additions & 6 deletions PhysicsTools/TruthInfo/README.md
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@@ -1,10 +1,8 @@
# TruthInfo prototype
# TruthInfo

> **Status: under heavy development — not open to external contributions.**
> This is an experimental prototype: its data model, APIs, and configuration
> change frequently and without notice, and it targets **Phase-2 (Run 4) only**
> (no Phase-1/Run-2 support). Please do not submit external changes or depend on
> it in production at this stage.
> **Status: open for contributions.** The data model and the levels are covered by
> unit tests; a change to either should come with one. The package targets
> **Phase-2 (Run 4) only** (no Phase-1/Run-2 support).
>
> **Original author and maintainer:** Felice Pantaleo (CERN),
> <felice.pantaleo@cern.ch>.
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323 changes: 0 additions & 323 deletions PhysicsTools/TruthInfo/doc/resource_cost.md
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7 changes: 4 additions & 3 deletions PhysicsTools/TruthInfo/interface/Branch.h
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// Original author: Felice Pantaleo (CERN) <felice.pantaleo@cern.ch>
// Part of the MC-truth-graph prototype - under heavy development, not yet open
// to external contributions (see PhysicsTools/TruthInfo/README.md).

#ifndef PhysicsTools_TruthInfo_interface_Branch_h
#define PhysicsTools_TruthInfo_interface_Branch_h
Expand Down Expand Up @@ -73,7 +71,10 @@ namespace truth {
[[nodiscard]] int bunchCrossing() const;
[[nodiscard]] int event() const;
[[nodiscard]] bool isInTime() const { return bunchCrossing() == 0; }
[[nodiscard]] bool isFromPileup() const { return bunchCrossing() != 0; }
// Anything that is not the signal interaction. NOT bunchCrossing() != 0: in-time
// pileup carries bunch crossing 0 and a nonzero event number, and the default
// production keeps in-time pileup only.
[[nodiscard]] bool isFromPileup() const { return !isSignal(); }
[[nodiscard]] bool isSignal() const { return bunchCrossing() == 0 && event() == 0; }

// Relations between branches.
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2 changes: 0 additions & 2 deletions PhysicsTools/TruthInfo/interface/BranchHitAssociator.h
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// Original author: Felice Pantaleo (CERN) <felice.pantaleo@cern.ch>
// Part of the MC-truth-graph prototype - under heavy development, not yet open
// to external contributions (see PhysicsTools/TruthInfo/README.md).

#ifndef PhysicsTools_TruthInfo_interface_BranchHitAssociator_h
#define PhysicsTools_TruthInfo_interface_BranchHitAssociator_h
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2 changes: 0 additions & 2 deletions PhysicsTools/TruthInfo/interface/BranchSelector.h
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// Original author: Felice Pantaleo (CERN) <felice.pantaleo@cern.ch>
// Part of the MC-truth-graph prototype - under heavy development, not yet open
// to external contributions (see PhysicsTools/TruthInfo/README.md).

#ifndef PhysicsTools_TruthInfo_interface_BranchSelector_h
#define PhysicsTools_TruthInfo_interface_BranchSelector_h
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2 changes: 0 additions & 2 deletions PhysicsTools/TruthInfo/interface/LogicalGraphHitIndexBuilder.h
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// Original author: Felice Pantaleo (CERN) <felice.pantaleo@cern.ch>
// Part of the MC-truth-graph prototype - under heavy development, not yet open
// to external contributions (see PhysicsTools/TruthInfo/README.md).

#ifndef PhysicsTools_TruthInfo_LogicalGraphHitIndexBuilder_h
#define PhysicsTools_TruthInfo_LogicalGraphHitIndexBuilder_h
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2 changes: 0 additions & 2 deletions PhysicsTools/TruthInfo/interface/RecoHitAdapters.h
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// Original author: Felice Pantaleo (CERN) <felice.pantaleo@cern.ch>
// Part of the MC-truth-graph prototype - under heavy development, not yet open
// to external contributions (see PhysicsTools/TruthInfo/README.md).

#ifndef PhysicsTools_TruthInfo_interface_RecoHitAdapters_h
#define PhysicsTools_TruthInfo_interface_RecoHitAdapters_h
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2 changes: 0 additions & 2 deletions PhysicsTools/TruthInfo/interface/SubgraphHitView.h
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// Original author: Felice Pantaleo (CERN) <felice.pantaleo@cern.ch>
// Part of the MC-truth-graph prototype - under heavy development, not yet open
// to external contributions (see PhysicsTools/TruthInfo/README.md).

#ifndef PhysicsTools_TruthInfo_SubgraphHitView_h
#define PhysicsTools_TruthInfo_SubgraphHitView_h
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