updated the pT calculation for helium3 and fixed some variable names

Author: Arkaprabha Saha

PWGLF/Tasks/Nuspex/AntiNucleiTask.cxx

@@ -140,25 +140,25 @@ struct AntiNucleiTask {
 
       double expBethe{tpc::BetheBlochAleph(static_cast<double>(track.tpcInnerParam()), cfgBetheBlochParams->get("p0"), cfgBetheBlochParams->get("p1"), cfgBetheBlochParams->get("p2"), cfgBetheBlochParams->get("p3"), cfgBetheBlochParams->get("p4"))};
       double expSigma{expBethe * cfgBetheBlochParams->get("resolution")};
-      float tpcNSigmaDeuteron = static_cast<float>((track.tpcSignal() - expBethe) / expSigma);
+      float tpcNSigma = static_cast<float>((track.tpcSignal() - expBethe) / expSigma);
 
-      float pt = track.sign() > 0 ? track.pt() : -track.pt();
+      float pt = track.sign() > 0 ? 2 * track.pt() : -2 * track.pt();
       // Filling histograms with track data before applying any cuts.
       histos.fill(HIST("RawEta"), track.eta());
       histos.fill(HIST("RawPhi"), track.phi());
       histos.fill(HIST("RawPt"), pt);
-      histos.fill(HIST("RawtpcNSigma"), collision.centFT0C(), pt, tpcNSigmaDeuteron);
+      histos.fill(HIST("RawtpcNSigma"), collision.centFT0C(), pt, tpcNSigma);
       histos.fill(HIST("RawtofNSigma"), collision.centFT0C(), pt, track.tofNSigmaDe());
 
       // If the track is good, fill the "after cuts" histograms.
       if (isGoodTrack(track)) {
         histos.fill(HIST("Eta"), track.eta());
         histos.fill(HIST("Phi"), track.phi());
         histos.fill(HIST("Pt"), pt);
-        histos.fill(HIST("tpcNSigma"), collision.centFT0C(), pt, tpcNSigmaDeuteron);
+        histos.fill(HIST("tpcNSigma"), collision.centFT0C(), pt, tpcNSigma);
         histos.fill(HIST("TpcSignal"), track.tpcInnerParam(), track.tpcSignal());
 
-        if (std::abs(tpcNSigmaDeuteron) < tpcNSigmaCut) {
+        if (std::abs(tpcNSigma) < tpcNSigmaCut) {
           histos.fill(HIST("tofNSigma"), collision.centFT0C(), pt, track.tofNSigmaDe());
         }
       }