throw

acts-project · Oct 3, 2024 · dd38434 · dd38434
1 parent e7dceab
commit dd38434
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Examples/Algorithms/TruthTracking/ActsExamples/TruthTracking/ParticleSmearing.cpp b/Examples/Algorithms/TruthTracking/ActsExamples/TruthTracking/ParticleSmearing.cpp
@@ -106,6 +106,9 @@ ActsExamples::ProcessCode ActsExamples::ParticleSmearing::execute(
           phi + sigmaPhi * stdNormal(rng), theta + sigmaTheta * stdNormal(rng));
       params[Acts::eBoundPhi] = newPhi;
       params[Acts::eBoundTheta] = newTheta;
+      if (std::abs(newTheta) < 1e-6) {
+        throw std::runtime_error("Theta is too close to zero.");
+      }
       // compute smeared q/p
       params[Acts::eBoundQOverP] = qOverP + sigmaQOverP * stdNormal(rng);