AtlasTuning();
break;
+ case kPyMbAtlasTuneMC09:
+// Minimum Bias pp-Collisions
+//
+//
+// select Pythia min. bias model
+ SetMSEL(0);
+ SetMSUB(92,1); // single diffraction AB-->XB
+ SetMSUB(93,1); // single diffraction AB-->AX
+ SetMSUB(94,1); // double diffraction
+ SetMSUB(95,1); // low pt production
+
+ AtlasTuning_MC09();
+ break;
case kPyMbWithDirectPhoton:
// Minimum Bias pp-Collisions with direct photon processes added
SetPARP(67,1); // Regulates Initial State Radiation
}
+void AliPythia6::AtlasTuning_MC09()
+{
+ //
+ // Configuration for the ATLAS tuning
+ printf("ATLAS New TUNE MC09\n");
+ SetMSTP(81,21); // treatment for MI, ISR, FSR and beam remnants: MI on, new model
+ SetMSTP(82, 4); // Double Gaussian Model
+ SetMSTP(52, 2); // External PDF
+ SetMSTP(51, 20650); // MRST LO*
+
+
+ SetMSTP(70, 0); // (was 2: def manual 1, def code 0) virtuality scale for ISR
+ SetMSTP(72, 1); // (was 0: def 1) maximum scale for FSR
+ SetMSTP(88, 1); // (was 0: def 1) strategy for qq junction to di-quark or baryon in beam remnant
+ SetMSTP(90, 0); // (was 1: def 0) strategy of compensate the primordial kT
+
+ SetPARP(78, 0.3); // the amount of color reconnection in the final state
+ SetPARP(80, 0.1); // probability of color partons kicked out from beam remnant
+ SetPARP(82, 2.3); // [GeV] PT_min at Ref. energy
+ SetPARP(83, 0.8); // Core density in proton matter distribution (def.value)
+ SetPARP(84, 0.7); // Core radius
+ SetPARP(90, 0.25); // 2*epsilon (exponent in power law)
+ SetPARJ(81, 0.29); // (was 0.14: def 0.29) Labmda value in running alpha_s for parton showers
+
+ SetMSTP(95, 6);
+ SetPARJ(41, 0.3); // a and b parameters of the symmm. Lund FF
+ SetPARJ(42, 0.58);
+ SetPARJ(46, 0.75); // mod. of the Lund FF for heavy end-point quarks
+ SetPARP(89,1800.); // [GeV] Ref. energy
+}
+
void AliPythia6::SetPtHardRange(Float_t ptmin, Float_t ptmax)
{
// Set the pt hard range