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Merged
sustripathy merged 1 commit into from
May 20, 2026
Merged

Please consider the following formatting changes to #16321 #2

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102 changes: 51 additions & 51 deletions PWGCF/TwoParticleCorrelations/Tasks/nucleibalance.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -2641,72 +2641,72 @@ struct Lambdastarproxy {

// --- SAME-EVENT: genuine pK #Lambda^{*} candidates ---
if (hasProtonCandidates) {
for (auto const& pr : protonCands) {
for (auto const& k : kaonCands) {
if (pr.tid == k.tid) {
continue;
}
const double mass = invariantMass(pr.px, pr.py, pr.pz, MassProton,
k.px, k.py, k.pz, MassKaonCharged);

const float pxTot = pr.px + k.px;
const float pyTot = pr.py + k.py;
const float pzTot = pr.pz + k.pz;
const float ptPair = ptFromPxPy(pxTot, pyTot);
const float phiPair = phiFromPxPy(pxTot, pyTot);
for (auto const& pr : protonCands) {
for (auto const& k : kaonCands) {
if (pr.tid == k.tid) {
continue;
}
const double mass = invariantMass(pr.px, pr.py, pr.pz, MassProton,
k.px, k.py, k.pz, MassKaonCharged);

const float yPair = rapidityFromMomentumAndMass(pxTot, pyTot, pzTot, mass);
const float pxTot = pr.px + k.px;
const float pyTot = pr.py + k.py;
const float pzTot = pr.pz + k.pz;
const float ptPair = ptFromPxPy(pxTot, pyTot);
const float phiPair = phiFromPxPy(pxTot, pyTot);

if (std::abs(yPair) > lstarLambdaAbsYMax.value) {
continue;
}
const float yPair = rapidityFromMomentumAndMass(pxTot, pyTot, pzTot, mass);

const bool unlikeSignPK = (pr.charge * k.charge) < 0;
if (unlikeSignPK) {
histos.fill(HIST("hInvMassPKUnlike"), mass);
if (lstarEnableSparse.value != 0) {
histos.fill(HIST("hLambdaStarPKUnlikeSparse"), mass, ptPair, eventMult);
if (std::abs(yPair) > lstarLambdaAbsYMax.value) {
continue;
}
} else {
histos.fill(HIST("hInvMassPKLike"), mass);
if (lstarEnableSparse.value != 0) {
histos.fill(HIST("hLambdaStarPKLikeSparse"), mass, ptPair, eventMult);

const bool unlikeSignPK = (pr.charge * k.charge) < 0;
if (unlikeSignPK) {
histos.fill(HIST("hInvMassPKUnlike"), mass);
if (lstarEnableSparse.value != 0) {
histos.fill(HIST("hLambdaStarPKUnlikeSparse"), mass, ptPair, eventMult);
}
} else {
histos.fill(HIST("hInvMassPKLike"), mass);
if (lstarEnableSparse.value != 0) {
histos.fill(HIST("hLambdaStarPKLikeSparse"), mass, ptPair, eventMult);
}
}
}
}
}
}

// --- SAME-EVENT: proxy (d/2) + K ---
if (hasProxyCandidates) {
for (auto const& pr : proxyCands) {
for (auto const& k : kaonCands) {
if (pr.tid == k.tid)
continue; // sanity check: should never match, but just in case of bug in candidate-building logic
const double mass = invariantMass(pr.px, pr.py, pr.pz, MassProton, k.px, k.py, k.pz, MassKaonCharged);

const float pxTot = pr.px + k.px;
const float pyTot = pr.py + k.py;
const float pzTot = pr.pz + k.pz;
const float ptPair = ptFromPxPy(pxTot, pyTot);
const float phiPair = phiFromPxPy(pxTot, pyTot);

const float yPair = rapidityFromMomentumAndMass(pxTot, pyTot, pzTot, mass);

// Inclusive invariant-mass spectrum for the #Lambda^{*} proxy (d/2 + K)
histos.fill(HIST("hDeuteronProxyMass"), mass);
if (lstarEnableSparse.value != 0) {
histos.fill(HIST("hLambdaStarProxySparse"), mass, ptPair, eventMult);

// Like-sign proxy background: proxy and kaon have the same charge sign.
// Here the proxy charge follows the original deuteron-candidate charge.
if ((pr.charge * k.charge) > 0) {
histos.fill(HIST("hLambdaStarProxyLikeSparse"), mass, ptPair, eventMult);
for (auto const& pr : proxyCands) {
for (auto const& k : kaonCands) {
if (pr.tid == k.tid)
continue; // sanity check: should never match, but just in case of bug in candidate-building logic
const double mass = invariantMass(pr.px, pr.py, pr.pz, MassProton, k.px, k.py, k.pz, MassKaonCharged);

const float pxTot = pr.px + k.px;
const float pyTot = pr.py + k.py;
const float pzTot = pr.pz + k.pz;
const float ptPair = ptFromPxPy(pxTot, pyTot);
const float phiPair = phiFromPxPy(pxTot, pyTot);

const float yPair = rapidityFromMomentumAndMass(pxTot, pyTot, pzTot, mass);

// Inclusive invariant-mass spectrum for the #Lambda^{*} proxy (d/2 + K)
histos.fill(HIST("hDeuteronProxyMass"), mass);
if (lstarEnableSparse.value != 0) {
histos.fill(HIST("hLambdaStarProxySparse"), mass, ptPair, eventMult);

// Like-sign proxy background: proxy and kaon have the same charge sign.
// Here the proxy charge follows the original deuteron-candidate charge.
if ((pr.charge * k.charge) > 0) {
histos.fill(HIST("hLambdaStarProxyLikeSparse"), mass, ptPair, eventMult);
}
}
}
}
}
}

// --- MIXED-EVENT: current kaons + previous-event real protons ---
// This fills the standard pK mixed-event background.
Expand Down