- //
- AliMaterial(1,"Vacuum $",1.e-16,1.e-16,1.e-16,1.e16,1.e16);
- AliMaterial(2,"Air $",14.61,7.3,0.001205,30420,67500);
+
+ // AIR
+
+ Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
+ Float_t zAir[4]={6.,7.,8.,18.};
+ Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
+ Float_t dAir = 1.20479E-3;
+ Float_t dAir1 = 1.20479E-10;
+ //
+ AliMixture(1,"Vacuum $",aAir,zAir,dAir1,4,wAir);
+ AliMixture(2,"Air $",aAir,zAir,dAir,4,wAir);