Import Geant4 11.4.1 source tree
This commit is contained in:
Gabriele Cosmo
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Geant4 11.4 - patch-01 Release Notes
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------------------------------------
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13 March 2026
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List of fixes included in this public patch since release 11.4.0:
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o CMake
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-----
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+ Use CMake 3.16-3.19 compatible construction of interface libraries.
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Addresses problem report #2700.
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Fixed logic error in construction of link interface to such interface
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libraries that resulted in empty target creation/export.
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o Geometry
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--------
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+ magneticfield:
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o Fixed reported Coverity defect for restoring original stream
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precision in G4FieldManager::ReportBadEpsilonValue().
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o Global
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------
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+ Always initialize G4CacheReference for a G4Cache instance on construction
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of latter; prevents fatal G4Exception when only low ID G4Cache elements
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are accessed.
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Protect debug warning printout from G4Cache destructor within 'g4cdebug'
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flag as it was originally intended. Addressing long-standing false-positive
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issue happening in MT mode (G4MTRunManager only) on macOS/clang.
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Also addressing problem report #2696.
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+ G4VSIntegration: fixed reported Coverity defect.
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+ Updated date and version for 11.4.1.
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o Interfaces
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----------
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+ G4UIQt: reimplemented the command search feature for the Help tree,
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addressing problem report #2683.
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Fix in ComputeStringMatchScore(..) in setting number of elements for a
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QVector; use G4 types where appropriate. Fixed compilation warning for
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implicit type conversion on macOS/XCode.
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o Particles
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---------
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+ Fixed energy conservation in G4MuonDecayChannel.
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Addressing problem report #2678.
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+ Extented excited isomer name from 3 to 5 digits after dot; also
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addressing problem report #2680.
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o Physics Lists
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-------------
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+ constructors/electromagnetic:
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o G4EmStandardPhysics_option4: added possibility to use external dEdx
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tables for ions, through substitution of the G4LindhardSorencenIonModel
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model class by G4IonParameterisedModel. Addressing problem report #2703.
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+ constructors/hadron_elastic:
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o G4ChargeExchangePhysics, G4ChargeExchangemessenger: added two different
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biasing factors for pions and kaons (request by NA64).
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+ constructors/hadron_inelastic:
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o In G4HadronInelasticQBBC, return back cross-section
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G4ParticleInelasticXS for protons as it was in release 11.3.
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o Fixed segmentation fault occurring on Linux/gcc15/Debug/CXX23, caused
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by in-scope destruction of G4NeutronPHPBuilder instance used by
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G4NeutronBuilder in G4HadronPhysicsShielding.
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+ lists:
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o G4PhysListFactory: trivial fix for reported Coverity defect.
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o Processes - Electromagnetic
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---------------------------
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+ lowenergy:
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o G4LivermorePolarizedComptonModel: improved/corrected references to
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quantum entanglement papers.
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o Processes - Hadronic
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--------------------
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+ cross_sections:
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o G4ChargeExchangeXS: added two different biasing factors for pions and
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kaons (requested by NA64). Removed debug printout and fixed reported
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Coverity defect.
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+ models/binary_cascade:
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o Fixed reported Coverity defects to avoid parameter string copy in
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G4BinaryCascade.
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o G4GeneratorPrecompoundInterface: added G4HadronicException header.
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+ models/cascade:
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o Directly use std::cbrt(double) in G4InuclSpecialFunctions, as now
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standard and available in <cmath>, replacing old ad-hoc implementation.
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Minor code formatting.
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+ models/coherent_elastic:
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o G4ChargeExchange: fixed bug in sampling of scattering angle for kaons.
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o G4ChargeExchange, G4HadronElastic, G4LMsdGenerator: minor optimisation.
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+ models/fission:
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o Fixed reported Coverity defects in G4fissioner for avoiding unnecessary
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copy of strings.
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o Fixed layout of G4fissionEvent class.
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+ models/inclxx:
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o In G4INCLCrossSectionsAntiparticles, corrected wrong formulae with
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isospins concerning the cross-sections N Nbar -> N Nbar + 2 pions.
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o In G4INCLNNToNSK2piChannel, fixed 'iso' condition.
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o Fixed reported Coverity defects for use of std::move() in G4INCLCascade
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and G4INCLNbarAtrestEntryChannel. Use G4 types consistently.
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+ models/nudex:
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o Fixed reported Coverity defects in G4NuDEXPSF for avoiding unnecessary
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copy of strings.
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+ models/particle_hp:
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o G4ParticleHPContAngularPar: reduced allocator fragmentation and memory
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churn in BuildByInterpolation() by removing unconditional deep copies
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of input angular distributions. Copies are now created only in case of
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self-aliasing, preserving correctness while avoiding excessive per-call
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heap allocations. Addressing problem report #2630.
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o G4ParticleHPNBodyPhaseSpace, G4ParticleHPInelasticCompFS: added
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G4HadronicException header.
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+ models/parton_string:
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o Added G4HadronicException header where missing for self-consistency.
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+ models/theo_high_energy:
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o G4TheoFSGenerator: added G4HadronicException header.
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+ stopping:
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o G4HadronStoppingProcess, G4MuonicAtomDecay: added G4HadronicException
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header.
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o Processes - Solid state
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-----------------------
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+ channeling:
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o In G4ChannelingMaterialData, fixed reported Coverity defects for string
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parameters copying. Use consistently G4 types and minor code formatting.
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o Run
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---
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+ Introduced UI command "/run/undertakeOptimisation" to force geometry
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optimisation and added to G4RunMessenger.
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+ Re-enabled automatic instantiation of G4MaterialScanner in G4RunManager;
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material scanner is instantiated only for the master thread.
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Fix in G4MaterialScanner to delete G4Event object at the end of each
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event and make sure geometry is optimized before starting the scan.
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In G4MSSteppingAction, fixed average A and average Z taking number of
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atoms into account. In G4MatScanMessenger, prevent material scanner
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UI commands from broadcasting to worker threads; material scanner is
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centrally managed by the master thread.
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o Visualization
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-------------
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+ modeling:
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o In G4PhysicalVolumeModel, fix to replace the helper class
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G4PhysicalVolumeModelTouchable with a temporary G4TouchableHistory
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object when calling a nested parameterisation, building and maintaining
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a private G4NavigationHistory.
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+ gMocren:
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o Fixed reported Coverity defect for unnecessary string copy in G4GMocrenIO.
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+ OpenGL:
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o In G4OpenGLQtViewer, fix in G4wheelEvent() for Qt version < 5.14.
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Addressing problem report #2688.
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o G4OpenGLViewer: removed unnecessary #include statements.
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+ ToolsSG:
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o G4ToolsSGSceneHandler: obtain applicable auxiliary edge flag.
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In AddPrimitive(..), fixed position of daughter of cloud-represented
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volumes. Addressing problem report #2691.
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+ Tree:
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o Moved 'fVerbosityGuidance' to G4ASCIITree factory to fix sanitizer
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warnings. Addressing problem report #2699.
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o Examples
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--------
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+ advanced/dna/moleculardna:
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o Fixed display of error for 'SSBm_yield' in analysis macros.
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+ extended/exoticphysics/channeling/ch2:
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o Correction in main() for fixing error at the end of execution when
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G4ChannelingFastSimModel is switched off.
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o Corrections in plot labels and some comments in the python scripts.
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o Fixed CMake script to copy also Jupyter notebook in the build folder.
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o Small corrections in comments in macro.
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+ extended/medical/dna/chem6:
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o Fixed energy unit for LET(100).
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o Cleanup implementation in main(): use default random engine MixMax and
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use auto whenever appropriate.
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o Set 1 as number of threads in beam.in to clear run-time warnings and
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fix Windows crash on exit.
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+ extended/medical/dna/dnadamage2:
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o Cleanup implementation in main(): use default random engine MixMax and
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use auto whenever appropriate.
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----------------------------------------------------------------------------
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Technical Notes
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---------------
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o This patch should be applied on top of release 11.4 series.
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o Technical notes distributed for release 11.4 are also applicable and
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valid for this patch.
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The code and rebuilt binary libraries for release 11.4.1 are available
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through the Geant4 "Download" Web page.
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Please refer to the Geant4 User Documentation for further information about
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using Geant4.
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