Merge pull request #17984 from mariadalfonso/fixM3delay90

HBHE M3 = fix M3 (90)

CalibCalorimetry/HcalAlgos/src/HcalTimeSlew.cc

@@ -8,22 +8,25 @@ static const double cap = 6.0;
 static const double tspar0[2] = {15.5, 12.2999};
 static const double tspar1[2] = {-3.2,-2.19142};
 static const double tspar2[2] = {32, 0};
-static const double tspar0_siPM[2] = {3., 3.}; // 3ns delay for MC and DATA, recheck later for data
+static const double tspar0_siPM[2] = {0., 0.}; // 0ns delay for MC and DATA, recheck later for data
 static const double tspar1_siPM[2] = {0, 0};
 static const double tspar2_siPM[2] = {0, 0};
 
+// used by M2
 double HcalTimeSlew::delay(double fC, BiasSetting bias) {
   double rawDelay=tzero[bias]+slope[bias]*log(fC);
   return (rawDelay<0)?(0):((rawDelay>tmax[bias])?(tmax[bias]):(rawDelay));			   
 }
 
+// used by M3
 double HcalTimeSlew::delay(double fC, ParaSource source, BiasSetting bias, double par0, double par1, double par2, bool isHPD) {
 
   if (source==TestStand) {
     return HcalTimeSlew::delay(fC, bias);
   }
   else if (source==InputPars) {
-    return std::fmin(cap, par0 + par1*log(fC+par2));
+    if(isHPD) return std::fmin(cap, par0 + par1*log(fC+par2));
+    return cap+tspar0_siPM[0];
   }
   else if (source==Data || source==MC){
     if(isHPD) return std::fmin(cap,tspar0[source-1]+tspar1[source-1]*log(fC+tspar2[source-1]));