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[PWGLF] added x and y components separately for scalar product check of lambda polarisation #17886

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Merged
prottayCMT merged 1 commit into from
Sep 11, 2026
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[PWGLF] added x and y components separately for scalar product check of lambda polarisation #17886

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188 changes: 129 additions & 59 deletions PWGLF/Tasks/Strangeness/lambdapolsp.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -191,7 +191,6 @@
Configurable<std::string> ConfNUA{"ConfNUA", "Users/p/prottay/My/Object/NUAwgtschk", "Path to NUA"};

Configurable<bool> fillnominal{"fillnominal", true, "flag to fill default histograms"};
Configurable<bool> filldefwithsyst{"filldefwithsyst", true, "flag to fill default histograms in syst"};
} QAgrp;

struct : ConfigurableGroup {
Expand Down Expand Up @@ -348,7 +347,7 @@

if (checkwithpub) {
if (useprofile == 2) {
histos.add("hpuxQxpvscentpteta", "hpuxQxpvscentpteta", HistType::kTHnSparseF, {axisGrp.configcentAxis, axisGrp.configthnAxispT, axisGrp.configetaAxis, spAxis}, true);

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
histos.add("hpuyQypvscentpteta", "hpuyQypvscentpteta", HistType::kTHnSparseF, {axisGrp.configcentAxis, axisGrp.configthnAxispT, axisGrp.configetaAxis, spAxis}, true);
histos.add("hpuxQxtvscentpteta", "hpuxQxtvscentpteta", HistType::kTHnSparseF, {axisGrp.configcentAxis, axisGrp.configthnAxispT, axisGrp.configetaAxis, spAxis}, true);
histos.add("hpuyQytvscentpteta", "hpuyQytvscentpteta", HistType::kTHnSparseF, {axisGrp.configcentAxis, axisGrp.configthnAxispT, axisGrp.configetaAxis, spAxis}, true);
Expand Down Expand Up @@ -500,7 +499,18 @@
histos.add("hpQxytpvscent", "hpQxytpvscent", HistType::kTHnSparseF, {axisGrp.configcentAxis, spAxis}, true);
histos.add("hpQxtQypvscent", "hpQxtQypvscent", HistType::kTHnSparseF, {axisGrp.configcentAxis, spAxis}, true);
histos.add("hpQxpQytvscent", "hpQxpQytvscent", HistType::kTHnSparseF, {axisGrp.configcentAxis, spAxis}, true);

histos.add("hSparseLambdaPolSP_xAwgt", "hSparseLambdaPolSP_xAwgt", HistType::kTHnSparseF, runaxes, true);
histos.add("hSparseLambdaPolSP_yAwgt", "hSparseLambdaPolSP_yAwgt", HistType::kTHnSparseF, runaxes, true);
histos.add("hSparseLambdaPolSP_xCwgt", "hSparseLambdaPolSP_xCwgt", HistType::kTHnSparseF, runaxes, true);
histos.add("hSparseLambdaPolSP_yCwgt", "hSparseLambdaPolSP_yCwgt", HistType::kTHnSparseF, runaxes, true);

histos.add("hSparseAntiLambdaPolSP_xAwgt", "hSparseAntiLambdaPolSP_xAwgt", HistType::kTHnSparseF, runaxes, true);
histos.add("hSparseAntiLambdaPolSP_yAwgt", "hSparseAntiLambdaPolSP_yAwgt", HistType::kTHnSparseF, runaxes, true);
histos.add("hSparseAntiLambdaPolSP_xCwgt", "hSparseAntiLambdaPolSP_xCwgt", HistType::kTHnSparseF, runaxes, true);
histos.add("hSparseAntiLambdaPolSP_yCwgt", "hSparseAntiLambdaPolSP_yCwgt", HistType::kTHnSparseF, runaxes, true);
}

if (usesubdet) {
histos.add("hSparseLambdaCosPsiA", "hSparseLambdaCosPsiA", HistType::kTHnSparseF, runaxes, true);
histos.add("hSparseLambdaSinPsiA", "hSparseLambdaSinPsiA", HistType::kTHnSparseF, runaxes, true);
Expand Down Expand Up @@ -545,12 +555,12 @@
// histos.add("hSparseLambda_corr2b", "hSparseLambda_corr2b", HistType::kTHnSparseF, runaxes, true);
histos.add("hSparseAntiLambda_corr2a", "hSparseAntiLambda_corr2a", HistType::kTHnSparseF, runaxes, true);
// histos.add("hSparseAntiLambda_corr2b", "hSparseAntiLambda_corr2b", HistType::kTHnSparseF, runaxes, true);
if (randGrp.useSP) {
/*if (randGrp.useSP) {
histos.add("hSparseAntiLambda_avgux", "hSparseAntiLambda_avgux", HistType::kTHnSparseF, {thnAxisInvMass, axisGrp.configthnAxispT, axisGrp.configthnAxisPol, axisGrp.configcentAxis}, true);
histos.add("hSparseAntiLambda_avguy", "hSparseAntiLambda_avguy", HistType::kTHnSparseF, {thnAxisInvMass, axisGrp.configthnAxispT, axisGrp.configthnAxisPol, axisGrp.configcentAxis}, true);
histos.add("hSparseLambda_avgux", "hSparseLambda_avgux", HistType::kTHnSparseF, {thnAxisInvMass, axisGrp.configthnAxispT, axisGrp.configthnAxisPol, axisGrp.configcentAxis}, true);
histos.add("hSparseLambda_avguy", "hSparseLambda_avguy", HistType::kTHnSparseF, {thnAxisInvMass, axisGrp.configthnAxispT, axisGrp.configthnAxisPol, axisGrp.configcentAxis}, true);
}
}*/
}

if (distGrp.filldist) {
Expand Down Expand Up @@ -647,7 +657,7 @@
const float hi = std::max(a, b);

if (std::abs(hi - lo) < 1.e-12f) {
return lo;

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
}

return systRnd.Uniform(lo, hi);
Expand Down Expand Up @@ -720,6 +730,14 @@
HistType::kTHnSparseF,
runaxesSyst,
true);

histos.add("hSparseAntiLambda_corr1aSyst", "hSparseAntiLambda_corr1aSyst", HistType::kTHnSparseF, runaxesSyst, true);
histos.add("hSparseAntiLambda_corr1bSyst", "hSparseAntiLambda_corr1bSyst", HistType::kTHnSparseF, runaxesSyst, true);
histos.add("hSparseAntiLambda_corr2aSyst", "hSparseAntiLambda_corr2aSyst", HistType::kTHnSparseF, runaxesSyst, true);

histos.add("hSparseLambda_corr1aSyst", "hSparseLambda_corr1aSyst", HistType::kTHnSparseF, runaxesSyst, true);
histos.add("hSparseLambda_corr1bSyst", "hSparseLambda_corr1bSyst", HistType::kTHnSparseF, runaxesSyst, true);
histos.add("hSparseLambda_corr2aSyst", "hSparseLambda_corr2aSyst", HistType::kTHnSparseF, runaxesSyst, true);
}
}

Expand Down Expand Up @@ -1002,11 +1020,11 @@
while (result < 0) {
// result = result + 2. * TMath::Pi();
result = result + 2. * o2::constants::math::PI;
}

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[two-pi-add-subtract] 

Use RecoDecay::constrainAngle to restrict angle to a given range.
while (result > 2. * TMath::Pi()) {
// result = result - 2. * TMath::Pi();

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
result = result - 2. * o2::constants::math::PI;
}*/

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[two-pi-add-subtract] 

Use RecoDecay::constrainAngle to restrict angle to a given range.
return result;
}

Expand Down Expand Up @@ -1080,6 +1098,20 @@
auto PolSP_A = uy * modqxZDCA - ux * modqyZDCA; // u_y QxA - u_x QyA
auto PolSP_C = uy * modqxZDCC - ux * modqyZDCC; // u_y QxC - u_x QyC

// SP numerator components separately
auto PolSP_xA = -ux * modqyZDCA;
auto PolSP_yA = uy * modqxZDCA;

auto PolSP_xC = -ux * modqyZDCC;
auto PolSP_yC = uy * modqxZDCC;

// acceptance-corrected versions
auto PolSP_xAwgt = PolSP_xA / acvalue;
auto PolSP_yAwgt = PolSP_yA / acvalue;

auto PolSP_xCwgt = PolSP_xC / acvalue;
auto PolSP_yCwgt = PolSP_yC / acvalue;

if (randGrp.useSP) {
Pol = PolSP;
PolA = PolSP_A;
Expand All @@ -1088,6 +1120,7 @@
PolAwgt = PolSP_A / acvalue;
PolCwgt = PolSP_C / acvalue;
}

//////////////////////////////

if (QAgrp.fillnominal) {
Expand Down Expand Up @@ -1116,9 +1149,28 @@
histos.fill(HIST("hSparseAntiLambda_corr2a"), candmass, candpt, sinThetaStar, centrality, desbinvalue, wgtfactor);
// histos.fill(HIST("hSparseAntiLambda_corr2b"), candmass, candpt, sinThetaStarcosphiphiStar, centrality, desbinvalue, wgtfactor);
if (randGrp.useSP) {
histos.fill(HIST("hSparseAntiLambda_avgux"), candmass, candpt, ux, centrality);
histos.fill(HIST("hSparseAntiLambda_avguy"), candmass, candpt, uy, centrality);
// histos.fill(HIST("hSparseAntiLambda_avgux"), candmass, candpt, ux, centrality);
// histos.fill(HIST("hSparseAntiLambda_avguy"), candmass, candpt, uy, centrality);

histos.fill(HIST("hSparseAntiLambdaPolwgt"), candmass, candpt, Polwgt, centrality, desbinvalue, wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolSP_xAwgt"),
candmass, candpt, PolSP_xAwgt,
centrality, desbinvalue, wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolSP_yAwgt"),
candmass, candpt, PolSP_yAwgt,
centrality, desbinvalue, wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolSP_xCwgt"),
candmass, candpt, PolSP_xCwgt,
centrality, desbinvalue, wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolSP_yCwgt"),
candmass, candpt, PolSP_yCwgt,
centrality, desbinvalue, wgtfactor);
}

} else {
if (usesubdet) {
histos.fill(HIST("hSparseAntiLambdaCosPsiA"), candmass, candpt, (TMath::Cos(GetPhiInRange(psiZDCA))), centrality, wgtfactor);
Expand All @@ -1142,8 +1194,26 @@
histos.fill(HIST("hSparseAntiLambda_corr2a"), candmass, candpt, sinThetaStar, centrality, wgtfactor);
// histos.fill(HIST("hSparseAntiLambda_corr2b"), candmass, candpt, sinThetaStarcosphiphiStar, centrality, wgtfactor);
if (randGrp.useSP) {
histos.fill(HIST("hSparseAntiLambda_avgux"), candmass, candpt, ux, centrality);
histos.fill(HIST("hSparseAntiLambda_avguy"), candmass, candpt, uy, centrality);
// histos.fill(HIST("hSparseAntiLambda_avgux"), candmass, candpt, ux, centrality);
// histos.fill(HIST("hSparseAntiLambda_avguy"), candmass, candpt, uy, centrality);

histos.fill(HIST("hSparseAntiLambdaPolwgt"), candmass, candpt, Polwgt, centrality, wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolSP_xAwgt"),
candmass, candpt, PolSP_xAwgt,
centrality, wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolSP_yAwgt"),
candmass, candpt, PolSP_yAwgt,
centrality, wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolSP_xCwgt"),
candmass, candpt, PolSP_xCwgt,
centrality, wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolSP_yCwgt"),
candmass, candpt, PolSP_yCwgt,
centrality, wgtfactor);
}
}
}
Expand Down Expand Up @@ -1171,8 +1241,26 @@
histos.fill(HIST("hSparseLambda_corr2a"), candmass, candpt, sinThetaStar, centrality, desbinvalue, wgtfactor);
// histos.fill(HIST("hSparseLambda_corr2b"), candmass, candpt, sinThetaStarcosphiphiStar, centrality, desbinvalue, wgtfactor);
if (randGrp.useSP) {
histos.fill(HIST("hSparseLambda_avgux"), candmass, candpt, ux, centrality);
histos.fill(HIST("hSparseLambda_avguy"), candmass, candpt, uy, centrality);
// histos.fill(HIST("hSparseLambda_avgux"), candmass, candpt, ux, centrality);
// histos.fill(HIST("hSparseLambda_avguy"), candmass, candpt, uy, centrality);

histos.fill(HIST("hSparseLambdaPolwgt"), candmass, candpt, Polwgt, centrality, desbinvalue, wgtfactor);

histos.fill(HIST("hSparseLambdaPolSP_xAwgt"),
candmass, candpt, PolSP_xAwgt,
centrality, desbinvalue, wgtfactor);

histos.fill(HIST("hSparseLambdaPolSP_yAwgt"),
candmass, candpt, PolSP_yAwgt,
centrality, desbinvalue, wgtfactor);

histos.fill(HIST("hSparseLambdaPolSP_xCwgt"),
candmass, candpt, PolSP_xCwgt,
centrality, desbinvalue, wgtfactor);

histos.fill(HIST("hSparseLambdaPolSP_yCwgt"),
candmass, candpt, PolSP_yCwgt,
centrality, desbinvalue, wgtfactor);
}
} else {
if (usesubdet) {
Expand All @@ -1197,8 +1285,26 @@
histos.fill(HIST("hSparseLambda_corr2a"), candmass, candpt, sinThetaStar, centrality, wgtfactor);
// histos.fill(HIST("hSparseLambda_corr2b"), candmass, candpt, sinThetaStarcosphiphiStar, centrality, wgtfactor);
if (randGrp.useSP) {
histos.fill(HIST("hSparseLambda_avgux"), candmass, candpt, ux, centrality);
histos.fill(HIST("hSparseLambda_avguy"), candmass, candpt, uy, centrality);
// histos.fill(HIST("hSparseLambda_avgux"), candmass, candpt, ux, centrality);
// histos.fill(HIST("hSparseLambda_avguy"), candmass, candpt, uy, centrality);

histos.fill(HIST("hSparseLambdaPolwgt"), candmass, candpt, Polwgt, centrality, wgtfactor);

histos.fill(HIST("hSparseLambdaPolSP_xAwgt"),
candmass, candpt, PolSP_xAwgt,
centrality, wgtfactor);

histos.fill(HIST("hSparseLambdaPolSP_yAwgt"),
candmass, candpt, PolSP_yAwgt,
centrality, wgtfactor);

histos.fill(HIST("hSparseLambdaPolSP_xCwgt"),
candmass, candpt, PolSP_xCwgt,
centrality, wgtfactor);

histos.fill(HIST("hSparseLambdaPolSP_yCwgt"),
candmass, candpt, PolSP_yCwgt,
centrality, wgtfactor);
}
}
}
Expand All @@ -1208,7 +1314,7 @@
!systIDs->empty()) {

for (const auto isyst : *systIDs) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
// Lambda
if (systSpecies == 1) {

Expand All @@ -1223,18 +1329,9 @@
static_cast<double>(isyst),
wgtfactor);

histos.fill(HIST("hSparseLambdaPolwgtSyst"),
candmass,
candpt,
Polwgt,
centrality,
desbinvalue,
static_cast<double>(isyst),
wgtfactor);
if (QAgrp.filldefwithsyst) {
histos.fill(HIST("hSparseLambdaPol"), candmass, candpt, Pol, centrality, desbinvalue, wgtfactor);
histos.fill(HIST("hSparseLambdaPolwgt"), candmass, candpt, Polwgt, centrality, desbinvalue, wgtfactor);
}
histos.fill(HIST("hSparseLambda_corr1aSyst"), candmass, candpt, sinPhiStar, centrality, desbinvalue, static_cast<double>(isyst), wgtfactor);
histos.fill(HIST("hSparseLambda_corr1bSyst"), candmass, candpt, cosPhiStar, centrality, desbinvalue, static_cast<double>(isyst), wgtfactor);
histos.fill(HIST("hSparseLambda_corr2aSyst"), candmass, candpt, sinThetaStar, centrality, desbinvalue, static_cast<double>(isyst), wgtfactor);

} else {

Expand All @@ -1246,24 +1343,15 @@
static_cast<double>(isyst),
wgtfactor);

histos.fill(HIST("hSparseLambdaPolwgtSyst"),
candmass,
candpt,
Polwgt,
centrality,
static_cast<double>(isyst),
wgtfactor);

if (QAgrp.filldefwithsyst) {
histos.fill(HIST("hSparseLambdaPol"), candmass, candpt, Pol, centrality, wgtfactor);
histos.fill(HIST("hSparseLambdaPolwgt"), candmass, candpt, Polwgt, centrality, wgtfactor);
}
histos.fill(HIST("hSparseLambda_corr1aSyst"), candmass, candpt, sinPhiStar, centrality, static_cast<double>(isyst), wgtfactor);
histos.fill(HIST("hSparseLambda_corr1bSyst"), candmass, candpt, cosPhiStar, centrality, static_cast<double>(isyst), wgtfactor);
histos.fill(HIST("hSparseLambda_corr2aSyst"), candmass, candpt, sinThetaStar, centrality, static_cast<double>(isyst), wgtfactor);
}
}

// AntiLambda
if (systSpecies == 2) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
if (needetaaxis) {

histos.fill(HIST("hSparseAntiLambdaPolSyst"),
Expand All @@ -1275,18 +1363,9 @@
static_cast<double>(isyst),
wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolwgtSyst"),
candmass,
candpt,
Polwgt,
centrality,
desbinvalue,
static_cast<double>(isyst),
wgtfactor);
if (QAgrp.filldefwithsyst) {
histos.fill(HIST("hSparseAntiLambdaPol"), candmass, candpt, Pol, centrality, desbinvalue, wgtfactor);
histos.fill(HIST("hSparseAntiLambdaPolwgt"), candmass, candpt, Polwgt, centrality, desbinvalue, wgtfactor);
}
histos.fill(HIST("hSparseAntiLambda_corr1aSyst"), candmass, candpt, sinPhiStar, centrality, desbinvalue, static_cast<double>(isyst), wgtfactor);
histos.fill(HIST("hSparseAntiLambda_corr1bSyst"), candmass, candpt, cosPhiStar, centrality, desbinvalue, static_cast<double>(isyst), wgtfactor);
histos.fill(HIST("hSparseAntiLambda_corr2aSyst"), candmass, candpt, sinThetaStar, centrality, desbinvalue, static_cast<double>(isyst), wgtfactor);

} else {

Expand All @@ -1298,18 +1377,9 @@
static_cast<double>(isyst),
wgtfactor);

histos.fill(HIST("hSparseAntiLambdaPolwgtSyst"),
candmass,
candpt,
Polwgt,
centrality,
static_cast<double>(isyst),
wgtfactor);

if (QAgrp.filldefwithsyst) {
histos.fill(HIST("hSparseAntiLambdaPol"), candmass, candpt, Pol, centrality, wgtfactor);
histos.fill(HIST("hSparseAntiLambdaPolwgt"), candmass, candpt, Polwgt, centrality, wgtfactor);
}
histos.fill(HIST("hSparseAntiLambda_corr1aSyst"), candmass, candpt, sinPhiStar, centrality, static_cast<double>(isyst), wgtfactor);
histos.fill(HIST("hSparseAntiLambda_corr1bSyst"), candmass, candpt, cosPhiStar, centrality, static_cast<double>(isyst), wgtfactor);
histos.fill(HIST("hSparseAntiLambda_corr2aSyst"), candmass, candpt, sinThetaStar, centrality, static_cast<double>(isyst), wgtfactor);
}
}
}
Expand Down Expand Up @@ -1355,9 +1425,9 @@
else if (centestim == 1)
centrality = collision.centFT0M();
else if (centestim == 2)
centrality = collision.centFT0A();

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
else if (centestim == 3)
centrality = collision.centFV0A();

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

// histos.fill(HIST("hCentrality0"), centrality);
if (!collision.triggereventsp()) {
Expand Down Expand Up @@ -1711,7 +1781,7 @@
}

if (TMath::Abs(v0.eta()) > 0.8)
continue;

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

int taga = LambdaTag;
int tagb = aLambdaTag;
Expand Down
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