[PWGLF] adding cosine axis (#12281)

Author: jikim1290

PWGLF/Tasks/Strangeness/lambdaTwoPartPolarization.cxx

@@ -127,6 +127,9 @@ struct lambdaTwoPartPolarization {
   ConfigurableAxis detaAxis{"dyAxis", {20, -1, 1}, "relative rapidity axis"};
   ConfigurableAxis dphiAxis{"dphiAxis", {20, -constants::math::PI * 0.5, constants::math::PI * 1.5}, "relative azimuth axis"};
 
+  ConfigurableAxis cosSigAxis{"cosSigAxis", {110, -1.05, 1.05}, "Signal cosine axis"};
+  ConfigurableAxis cosAccAxis{"cosAccAxis", {110, -7.05, 7.05}, "Accepatance cosine axis"};
+
   TF1* fMultPVCutLow = nullptr;
   TF1* fMultPVCutHigh = nullptr;
 
@@ -158,8 +161,8 @@ struct lambdaTwoPartPolarization {
       histos.add("QA/nsigma_tpc_pt_mpi", "", {HistType::kTH2F, {ptAxis, pidAxis}});
     }
 
-    histos.add("Ana/Signal", "", {HistType::kTHnSparseF, {ptAxis, ptAxis, detaAxis, dphiAxis, centAxis}});
-    histos.add("Ana/Acceptance", "", {HistType::kTHnSparseF, {ptAxis, centAxis, RapAxis}});
+    histos.add("Ana/Signal", "", {HistType::kTHnSparseF, {ptAxis, ptAxis, detaAxis, dphiAxis, centAxis, cosSigAxis}});
+    histos.add("Ana/Acceptance", "", {HistType::kTHnSparseF, {ptAxis, centAxis, RapAxis, cosAccAxis}});
 
     fMultPVCutLow = new TF1("fMultPVCutLow", "[0]+[1]*x+[2]*x*x+[3]*x*x*x - 2.5*([4]+[5]*x+[6]*x*x+[7]*x*x*x+[8]*x*x*x*x)", 0, 100);
     fMultPVCutLow->SetParameters(2834.66, -87.0127, 0.915126, -0.00330136, 332.513, -12.3476, 0.251663, -0.00272819, 1.12242e-05);