fix typo in Digitizer

AllaMaevskaya · shahor02 · commit b1c1818be964 · 2021-10-02T16:27:55.000+02:00
diff --git a/Detectors/FIT/FT0/simulation/src/Digitizer.cxx b/Detectors/FIT/FT0/simulation/src/Digitizer.cxx
@@ -276,7 +276,7 @@ void Digitizer::storeBC(BCCache& bc,
 
     // fill triggers
 
-    Bool_t is_A_side = (ipmt <= 4 * mGeometry.NCellsA);
+    Bool_t is_A_side = (ipmt < 4 * mGeometry.NCellsA);
     if (!is_time_in_signal_gate) {
       continue;
     }
@@ -296,12 +296,12 @@ void Digitizer::storeBC(BCCache& bc,
   is_C = n_hit_C > 0;
   is_Central = summ_ampl_A + summ_ampl_C >= params.mtrg_central_trh;
   is_SemiCentral = summ_ampl_A + summ_ampl_C >= params.mtrg_semicentral_trh;
-  vertex_time = (mean_time_A - mean_time_C) * 0.5;
-  isVertex = is_A && is_C && (vertex_time > -params.mTime_trg_gate && vertex_time < params.mTime_trg_gate);
   uint32_t amplA = is_A ? summ_ampl_A * 0.125 : 0;   // sum amplitude A side / 8 (hardware)
   uint32_t amplC = is_C ? summ_ampl_C * 0.125 : 0;   // sum amplitude C side / 8 (hardware)
   uint16_t timeA = is_A ? mean_time_A / n_hit_A : 0; // average time A side
   uint16_t timeC = is_C ? mean_time_C / n_hit_C : 0; // average time C side
+  vertex_time = (timeC - timeA) * 0.5;
+  isVertex = is_A && is_C && (vertex_time > -params.mTime_trg_gate && vertex_time < params.mTime_trg_gate);
 
   Triggers triggers;
   if (nStored > 0) {
