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[PWGCF] Refactor LambdaSpinPolarization processing logic #15052

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[PWGCF] Refactor LambdaSpinPolarization processing logic #15052

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35 changes: 26 additions & 9 deletions PWGCF/TwoParticleCorrelations/Tasks/lambdaSpinPolarization.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -1634,16 +1634,33 @@ struct LambdaSpinPolarization {
float dphi = RecoDecay::constrainAngle(p1.phi() - p2.phi(), -PI);
float dR = std::sqrt(drap * drap + dphi * dphi);

// Get Lambda-Proton four-momentum
std::array<float, 4> l1 = {p1.px(), p1.py(), p1.pz(), MassLambda0};
std::array<float, 4> l2 = {p2.px(), p2.py(), p2.pz(), MassLambda0};

std::array<float, 4> llpair = {
l1[0] + l2[0],
l1[1] + l2[1],
l1[2] + l2[2],
l1[3] + l2[3]};

std::array<float, 4> pr1 = {p1.prPx(), p1.prPy(), p1.prPz(), MassProton};
std::array<float, 4> pr2 = {p2.prPx(), p2.prPy(), p2.prPz(), MassProton};
std::array<float, 3> v1, v2;
getBoostVector(l1, v1, cInvBoostFlag);
getBoostVector(l2, v2, cInvBoostFlag);
boost(pr1, v1);
boost(pr2, v2);

std::array<float, 3> vPair;
getBoostVector(llpair, vPair, cInvBoostFlag);

boost(l1, vPair);
boost(l2, vPair);

boost(pr1, vPair);
boost(pr2, vPair);

std::array<float, 3> v1_pair, v2_pair;
getBoostVector(l1, v1_pair, cInvBoostFlag);
getBoostVector(l2, v2_pair, cInvBoostFlag);

boost(pr1, v1_pair);
boost(pr2, v2_pair);

std::array<float, 3> pr1tv = {pr1[0], pr1[1], pr1[2]};
std::array<float, 3> pr2tv = {pr2[0], pr2[1], pr2[2]};
Expand Down Expand Up @@ -1676,7 +1693,7 @@ struct LambdaSpinPolarization {
continue;
}

// Kinematic matching with named constants
// Kinematic matching
float deltaPt = std::abs(trk_1.pt() - trk_2.pt());
float deltaPhi = std::abs(RecoDecay::constrainAngle(trk_1.phi() - trk_2.phi(), -PI));
float deltaRap = std::abs(trk_1.rap() - trk_2.rap());
Expand Down Expand Up @@ -1718,7 +1735,7 @@ struct LambdaSpinPolarization {
analyzePairs<kAntiLambdaAntiLambda, true>(antiLambdaTracks, antiLambdaTracks);
}

PROCESS_SWITCH(LambdaSpinPolarization, processDataReco, "Process for Data and MCReco", false);
PROCESS_SWITCH(LambdaSpinPolarization, processDataReco, "Process for Data and MCReco", true);

struct GetMultiplicity {
float operator()(auto const& col) const
Expand Down Expand Up @@ -1766,7 +1783,7 @@ struct LambdaSpinPolarization {
}
}

PROCESS_SWITCH(LambdaSpinPolarization, processDataRecoMixed, "Process for Data and MCReco for Mixed events", true);
PROCESS_SWITCH(LambdaSpinPolarization, processDataRecoMixed, "Process for Data and MCReco for Mixed events", false);

void processDataRecoMixEvent(LambdaCollisions::iterator const& collision, LambdaTracks const& tracks)
{
Expand Down
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