--- PamCut/TrkCuts/TrkHitQualCut/TrkHitQualCut.h	2009/05/27 13:30:08	1.1.1.1
+++ PamCut/TrkCuts/TrkHitQualCut/TrkHitQualCut.h	2011/11/30 17:05:28	1.2.2.1
@@ -2,7 +2,7 @@
  * TrkHitQualCut.h
  *
  *  Created on: 13-mar-2009
- *      Author: Nicola Mori, S. Ricciarini
+ *      Author: Nicola Mori
  */
 
 /*! @file TrkHitQualCut.h The TrkHitQualCut class definition file */
@@ -14,8 +14,7 @@
 
 /*! @brief The tracker hit quality cut.
  *
- * This cut performs a check on the number of hits on X and Y view
- * and on the lever arm.
+ * This cut performs a check on the number of hits on X and Y view, on the X lever arm and on the impact angle.
  *
  * CUT DEPENDENCIES: TrkPhysSin for object trkTrack
  */
@@ -26,12 +25,14 @@
   /*! @brief Constructor.
    *
    * @param cutName The cut's name.
-   * @param xMinHit The minimum hits along the track for X view
-   * @param yMinHit The minimum hits along the track for X view
-   * @param xLeverArm The Minimum lever arm
+   * @param xMinHit The minimum number of hits along the track for X view
+   * @param yMinHit The minimum number of hits along the track for X view
+   * @param xLeverArm The minimum lever arm for X view
+   * @param xAngMin The minimum XZ angle (degrees) measured from vertical axis on the first TRK plane (can either positive or negative)
+   * @param xAngMax The maximum XZ angle (degrees) measured from vertical axis on the first TRK plane (can either positive or negative)
    */
-  TrkHitQualCut(const char *cutName, int xMinHit, int yMinHit, int xLeverArm) :
-    PamCut(cutName), _xMinHit(xMinHit), _yMinHit(yMinHit), _xLeverArm(xLeverArm) {
+  TrkHitQualCut(const char *cutName, int xMinHit, int yMinHit, int xLeverArm, Float_t xAngMin=-90., Float_t xAngMax=+90.) :
+    PamCut(cutName), _xMinHit(xMinHit), _yMinHit(yMinHit), _xLeverArm(xLeverArm), _xAngMin(xAngMin), _xAngMax(xAngMax) {
   }
   /*! @brief Destructor. */
   ~TrkHitQualCut() {
@@ -39,22 +40,20 @@
 
   /*! @brief The tracker hit quality check.
    *
-   * The event is rejected if X hits or Y hist or X lever arm is less than the
-   * parameter passed to the constructor.
+   * The event is rejected if number of X hits or Y hits or X lever arm is less than the
+   * parameter passed to the constructor or if the angle is not inside the specified range.
    *
    * @see TrkHitQualCut
    * @param event The event to analyze.
-   * @return #CUTOK if X hits, Y hits and X lever arm are greater or equal than the minimum values.
+   * @return #CUTOK if X hits, Y hits and X lever arm are greater or equal than the minimum values and if the XZ angle satisfies the condition xAngMin < angle < xAngMax.
    * @return 0 if at least one of the above conditions is not matched.
    */
-  /*TODO: implementare un tipo di ritorno diverso a seconda che fallisca il check sul numero di hit o quello
-   * sul lever arm (opzionale)
-   */
   int Check(PamLevel2 *event);
 
 private:
 
   int _xMinHit, _yMinHit, _xLeverArm;
+  Float_t _xAngMin, _xAngMax;
 
 };
 #endif /* TRKHITQUALCUT_H_ */