Update eff parametrization

Author: jmunozme

PWGMM/UE/Tasks/uecharged.cxx

@@ -170,12 +170,12 @@ struct ueCharged {
     AxisSpec ptAxis = {ptBinning, "#it{p}_{T}^{assoc} (GeV/#it{c})"};
 
     fEff.setObject(new TF1("fpara",
-                           "(x<0.3)*((0.315318)+x*(2.38596)+x*x*(-4.388)) +"
-                           "(x>=0.3&&x<1.8)*((0.604051)+(0.154763)*x+(-0.103004)*"
-                           "x*x+(0.0266487)*x*x*x) +"
-                           "(x>=1.8&&x<14.)*((0.700444)+(-0.00115506)*x+(0."
-                           "000667608)*x*x+(-3.82915e-05)*x*x*x) +"
-                           "(x>=14)*((0.731778)+(-0.000994634)*x)",
+                           "(x<0.3)*((0.402353)+x*(1.90824)+x*x*(-3.37295)) +"
+                           "(x>=0.3&&x<1.8)*((0.603846)+(0.30189)*x+(-0.240649)*"
+                           "x*x+(0.0635382)*x*x*x) +"
+                           "(x>=1.8&&x<14.)*((0.75982)+(-0.0241023)*x+"
+                           "(0.00560107)*x*x+(-0.00048451)*x*x*x+"
+                           "(1.43868e-05)*x*x*x*x)+(x>=14)*((0.755339)+(-0.000986326)*x)",
                            0., 1e5));
 
     if (doprocessMC || doprocessMCTrue) {