--- PamCut/CommonDefs.h	2010/03/10 09:10:44	1.8
+++ PamCut/CommonDefs.h	2010/03/11 19:17:44	1.9
@@ -14,6 +14,9 @@
 /*! @brief The implementations of PamCut::Check() must return this value if the event satisfy the cut*/
 const int CUTOK = -1;
 
+const float POSITIVE = 1.0; ///< Positive sign alias
+const float NEGATIVE = -1.0; ///< Negative sign alias
+
 /*! @enum DETECTORCODE
  * The values for each detector correspond to a binary code associated to that detector.
  * These can be arithmetically added to create a binary code for a set of detectors.