Resolve "ZDC sampling detector"

Closes #53 (closed)

compact/definitions.xml

@@ -284,7 +284,9 @@
     <constant name="ForwardRomanPotC_ID" value="157"/>
     <constant name="ForwardOffMTracker_ID"  value="159"/>
 
+
     <constant name="ffi_ZDC_ID"          value="160"/>
+    <constant name="ffi_ZDC_HCAL_ID"  value="161"/>
 
     <comment> 
       =====================================
@@ -654,7 +656,7 @@
 
     <comment> Global parameters </comment>
     <constant name="ffi_ZDC_width"             value="60.0 * cm"/>
-    <constant name="ffi_ZDC_thickness"         value="200.0 * cm"/>
+    <constant name="ffi_ZDC_thickness"         value="61.0 * cm"/><comment> Changed from 200.0 cm </comment>
     <comment> Original Global parameters </comment>     
     <!--
     <constant name="ffi_ZDC_thickness"         value="250.0 * cm"/>
@@ -670,6 +672,21 @@
     <constant name="ffi_ZDC_ECAL_ntower"       value="20"/>
     -->
 
+    <comment> ZDC HCAL parameters </comment>
+    <constant name="ffi_ZDC_HCAL_CrossingAngle" value="0.020*rad"/>
+    <constant name="ffi_ZDC_HCAL_tracker_region_zmax" value="5*m"/>
+    <constant name="ffi_ZDC_HCAL_tracker_region_rmax" value="5*m"/>
+
+    <constant name="ffi_ZDC_HCAL_offset"    value="5.0*mm"/>
+    <constant name="ffi_ZDC_HCAL_st_length" value="20.0*mm"/>
+    <constant name="ffi_ZDC_HCAL_lt_length" value="ffi_ZDC_width"/><comment> Changed from 40.0mm </comment>
+    <constant name="ffi_ZDC_HCAL_st_x_pos"  value="0.60*m"/>
+    <constant name="ffi_ZDC_HCAL_st_y_pos"  value="0.0*m"/>
+    <constant name="ffi_ZDC_HCAL_st_z_pos"  value="ffi_ZDC_z_pos + ffi_ZDC_ECAL_thickness + 1*cm"/> <comment> Was 34 m, changed to be placed right after ZDC(The ecal) </comment>
+    <constant name="ffi_ZDC_HCAL_lt_x_pos"  value="ffi_ZDC_x_pos"/>
+    <constant name="ffi_ZDC_HCAL_lt_y_pos"  value="ffi_ZDC_y_pos"/>
+    <constant name="ffi_ZDC_HCAL_lt_z_pos"  value="ffi_ZDC_z_pos + ffi_ZDC_ECAL_thickness + 1*cm"/> <comment> Was 34 m, changed to be placed right after ZDC(The ecal) </comment>
+
     <comment>
       -----------------------
       Gaseous RICH Parameters