Skip to content

[PWGLF] Fix bug in calculation of SV radii for hyphe4s #11770

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
maciacco merged 1 commit into from
Jun 25, 2025
Merged

[PWGLF] Fix bug in calculation of SV radii for hyphe4s #11770

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
25 changes: 14 additions & 11 deletions PWGLF/TableProducer/Nuspex/hyperhelium4sigmaRecoTask.cxx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -374,9 +374,9 @@ struct Hyperhelium4sigmaRecoTask {
hyphe4sCand.primVtx[0] = collision.posX();
hyphe4sCand.primVtx[1] = collision.posY();
hyphe4sCand.primVtx[2] = collision.posZ();
hyphe4sCand.decVtx[0] = kinkCand.xDecVtx();
hyphe4sCand.decVtx[1] = kinkCand.yDecVtx();
hyphe4sCand.decVtx[2] = kinkCand.zDecVtx();
hyphe4sCand.decVtx[0] = kinkCand.xDecVtx() + collision.posX();
hyphe4sCand.decVtx[1] = kinkCand.yDecVtx() + collision.posY();
hyphe4sCand.decVtx[2] = kinkCand.zDecVtx() + collision.posZ();

hyphe4sCand.momMoth[0] = kinkCand.pxMoth();
hyphe4sCand.momMoth[1] = kinkCand.pyMoth();
Expand Down Expand Up @@ -531,10 +531,11 @@ struct Hyperhelium4sigmaRecoTask {
if (isTrueSignal) {
auto mcMotherTrack = motherTrack.mcParticle_as<aod::McParticles>();
auto mcDauTrack = dauTrack.mcParticle_as<aod::McParticles>();
float recSVR = std::sqrt(kinkCand.xDecVtx() * kinkCand.xDecVtx() + kinkCand.yDecVtx() * kinkCand.yDecVtx());
registry.fill(HIST("hDiffSVx"), kinkCand.xDecVtx() - mcDauTrack.vx());
registry.fill(HIST("hDiffSVy"), kinkCand.yDecVtx() - mcDauTrack.vy());
registry.fill(HIST("hDiffSVz"), kinkCand.zDecVtx() - mcDauTrack.vz());
float posDecVtx[3] = {kinkCand.xDecVtx() + collision.posX(), kinkCand.yDecVtx() + collision.posY(), kinkCand.zDecVtx() + collision.posZ()};
float recSVR = std::sqrt(posDecVtx[0] * posDecVtx[0] + posDecVtx[1] * posDecVtx[1]);
registry.fill(HIST("hDiffSVx"), posDecVtx[0] - mcDauTrack.vx());
registry.fill(HIST("hDiffSVy"), posDecVtx[1] - mcDauTrack.vy());
registry.fill(HIST("hDiffSVz"), posDecVtx[2] - mcDauTrack.vz());
registry.fill(HIST("h2RecSVRVsTrueSVR"), recSVR, std::hypot(mcDauTrack.vx(), mcDauTrack.vy()));
registry.fill(HIST("h2TrueMotherDiffPtVsRecSVR"), recSVR, mcMotherTrack.pt() - kinkCand.ptMoth());
registry.fill(HIST("h2TrueMotherDiffPzVsRecSVR"), recSVR, mcMotherTrack.pz() - kinkCand.pzMoth());
Expand All @@ -557,7 +558,7 @@ struct Hyperhelium4sigmaRecoTask {
initCCDB(bc);
std::array<float, 2> dcaInfo;
auto mcMotherTrackPar = getTrackParFromMC(mcMotherTrack);
o2::base::Propagator::Instance()->propagateToDCABxByBz({kinkCand.xDecVtx(), kinkCand.yDecVtx(), kinkCand.zDecVtx()}, mcMotherTrackPar, 2.f, matCorr, &dcaInfo);
o2::base::Propagator::Instance()->propagateToDCABxByBz({posDecVtx[0], posDecVtx[1], posDecVtx[2]}, mcMotherTrackPar, 2.f, matCorr, &dcaInfo);
registry.fill(HIST("hDCAXYMothToRecSV"), dcaInfo[0]);
registry.fill(HIST("hDCAZMothToRecSV"), dcaInfo[1]);
std::array<float, 3> pMotherAtSV = {-999.f, -999.f, -999.f};
Expand All @@ -570,7 +571,7 @@ struct Hyperhelium4sigmaRecoTask {
float pMoth = std::hypot(kinkCand.pxMoth(), kinkCand.pyMoth(), kinkCand.pzMoth());
float pDaug = std::hypot(kinkCand.pxDaug(), kinkCand.pyDaug(), kinkCand.pzDaug());

float mothPDir[3] = {kinkCand.xDecVtx() - collision.posX(), kinkCand.yDecVtx() - collision.posY(), kinkCand.zDecVtx() - collision.posZ()};
float mothPDir[3] = {kinkCand.xDecVtx(), kinkCand.yDecVtx(), kinkCand.zDecVtx()};
float magMothPDirXY = std::hypot(mothPDir[0], mothPDir[1]);
float magMothPDir = std::hypot(mothPDir[0], mothPDir[1], mothPDir[2]);
float spKinkSV = mothPDir[0] * kinkCand.pxDaug() + mothPDir[1] * kinkCand.pyDaug() + mothPDir[2] * kinkCand.pzDaug();
Expand Down Expand Up @@ -998,8 +999,10 @@ struct Hyperhelium4sigmaQa {
recoQAHist.fill(HIST("hDauAlphaIsPVContributer"), daughterTrack.isPVContributor() ? 1.5 : 0.5);

float itsNSigma = itsResponse.nSigmaITS<o2::track::PID::Alpha>(daughterTrack);
recoQAHist.fill(HIST("hDauAlphaPVsITSNSigma"), daughterTrack.sign() * daughterTrack.p(), itsNSigma);
recoQAHist.fill(HIST("hDauAlphaITSCls"), daughterTrack.itsNCls());
if (daughterTrack.hasITS()) {
recoQAHist.fill(HIST("hDauAlphaPVsITSNSigma"), daughterTrack.sign() * daughterTrack.p(), itsNSigma);
recoQAHist.fill(HIST("hDauAlphaITSCls"), daughterTrack.itsNCls());
}

if (motherTrack.has_collision() && daughterTrack.has_collision()) {
recoQAHist.fill(HIST("hReco2BCandidateCount"), 1.5);
Expand Down
Loading