fix(poly): working to resolve overshoot mode

src/poly/utils/public/integrators.h

@@ -74,6 +74,8 @@ namespace polyMFEMUtils {
     quill::Logger* m_logger = m_logManager.getLogger("log");
     double m_polytropicIndex;
     double m_epsilon;
+    static constexpr double m_regularizationRadius = 0.15; ///< Regularization radius for the epsilon function, used to avoid singularities in the power law.
+    static constexpr double m_regularizationCoeff = 1.0/6.0; ///< Coefficient for the regularization term, used to ensure smoothness in the power law.
   };
 
   inline double dfmod(const double epsilon, const double n) {