Import Geant4 11.3.1 source tree

source/processes/hadronic/util/History

@@ -7,6 +7,14 @@ It must **not** be used as a substitute for writing good git commit messages!
 
 -------------------------------------------------------------------------------
 
+## 2025-03-05 Vladimir Ivanchenko (hadr-util-V11-02-06)
+- G4HadronicDeveloperParameters - added limitation of warning printout on
+    change of parameters (NA64 request).
+
+## 2025-01-09 Vladimir Ivanchenko
+- G4Fragment - added protection against precision loss in computation of a boost
+    vector at rest
+
 ## 2024-10-29 Vladimir Ivanchenko (hadr-util-V11-02-05)
 - G4LegendrePolynomial - optimized implementation by Isaac Kunen GitHub PR #70
 

source/processes/hadronic/util/include/G4HadronicDeveloperParameters.hh

@@ -89,6 +89,9 @@ class G4HadronicDeveloperParameters
       void issue_non_eligible_value( const G4String& name );
       void issue_is_already_defined( const G4String& name );
       void issue_is_modified( const G4String& name );
+
+      G4int nWarn{0};
+      G4int nWarnMax{5};
 };
 
 #endif

source/processes/hadronic/util/src/G4Fragment.cc

@@ -205,7 +205,9 @@ void G4Fragment::SetExcEnergyAndMomentum(G4double eexc,
 {
   theExcitationEnergy = eexc;
   theMomentum.set(0.0, 0.0, 0.0, theGroundStateMass + eexc);
-  theMomentum.boost(v.boostVector());
+  const G4double elim2 = 100.*CLHEP::eV*CLHEP::eV;
+  if (v.vect().mag2() > elim2)
+    theMomentum.boost(v.boostVector());
 }
 
 G4double G4Fragment::GetBindingEnergy() const

source/processes/hadronic/util/src/G4HadronicDeveloperParameters.cc

@@ -332,6 +332,8 @@ void G4HadronicDeveloperParameters::issue_is_already_defined( const G4String& na
    G4Exception( "G4HadronicDeveloperParameters" , "HadDevPara_004", FatalException , text );
 }
 void G4HadronicDeveloperParameters::issue_is_modified( const G4String& name ) {
+   if (nWarn > nWarnMax) { return; }
+   ++nWarn;
    G4String text("Parameter ");
    text += name;  
    text += " has changed from default value.";