Merge pull request #44457 from aehart/kf_matrix_fix

[14_0_X] KalmanFilter fix for Phase 2 L1 tracking
cms-sw · Mar 27, 2024 · f90edc3 · f90edc3
2 parents 230c0c3 + 7a4d565
commit f90edc3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/L1Trigger/TrackFindingTMTT/src/KFbase.cc b/L1Trigger/TrackFindingTMTT/src/KFbase.cc
@@ -551,7 +551,7 @@ namespace tmtt {
       matRinv = TMatrixD(TMatrixD::kInverted, matR);
     } else {
       // Protection against rare maths instability.
-      const TMatrixD unitMatrix(TMatrixD::kUnit, TMatrixD(nHelixPar_, nHelixPar_));
+      const TMatrixD unitMatrix(TMatrixD::kUnit, TMatrixD(2, 2));
       const double big = 9.9e9;
       matRinv = big * unitMatrix;
     }