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[PWGEM] Adding the possibility to reject a radial region in PCM #17079

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mhemmer-cern merged 1 commit into from
Jul 16, 2026
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[PWGEM] Adding the possibility to reject a radial region in PCM #17079

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4 changes: 3 additions & 1 deletion PWGEM/PhotonMeson/Core/Pi0EtaToGammaGamma.h
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Original file line number Diff line number Diff line change
Expand Up @@ -79,12 +79,12 @@

template <o2::aod::pwgem::photonmeson::photonpair::PairType pairtype, o2::soa::is_table... Types>
struct Pi0EtaToGammaGamma {
o2::framework::Configurable<std::string> ccdburl{"ccdb-url", "http://alice-ccdb.cern.ch", "url of the ccdb repository"};

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[name/configurable] 

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)
o2::framework::Configurable<std::string> grpPath{"grpPath", "GLO/GRP/GRP", "Path of the grp file"};
o2::framework::Configurable<std::string> grpmagPath{"grpmagPath", "GLO/Config/GRPMagField", "CCDB path of the GRPMagField object"};
o2::framework::Configurable<bool> skipGRPOquery{"skipGRPOquery", true, "skip grpo query"};
o2::framework::Configurable<float> d_bz_input{"d_bz_input", -999, "bz field in kG, -999 is automatic"};

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[name/configurable] 

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)
o2::framework::Configurable<uint64_t> ndiff_bc_mix{"ndiff_bc_mix", 594, "difference in global BC required in mixed events"};

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[name/configurable] 

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)

o2::framework::Configurable<int> cfgQvecEstimator{"cfgQvecEstimator", 0, "FT0M:0, FT0A:1, FT0C:2"};
o2::framework::Configurable<int> cfgCentEstimator{"cfgCentEstimator", 2, "FT0M:0, FT0A:1, FT0C:2"};
Expand Down Expand Up @@ -137,6 +137,8 @@
o2::framework::Configurable<float> cfg_max_eta_v0{"cfg_max_eta_v0", 0.8, "max eta for v0 photons at PV"};
o2::framework::Configurable<float> cfg_min_v0radius{"cfg_min_v0radius", 4.0, "min v0 radius"};
o2::framework::Configurable<float> cfg_max_v0radius{"cfg_max_v0radius", 90.0, "max v0 radius"};
o2::framework::Configurable<float> cfg_midL_v0radius{"cfg_midL_v0radius", -1.0, "middle low v0 radius for rejection if >0"};
o2::framework::Configurable<float> cfg_midH_v0radius{"cfg_midH_v0radius", -1.0, "middle high v0 radius for rejection if >0"};
o2::framework::Configurable<float> cfg_max_alpha_ap{"cfg_max_alpha_ap", 0.95, "max alpha for AP cut"};
o2::framework::Configurable<float> cfg_max_qt_ap{"cfg_max_qt_ap", 0.01, "max qT for AP cut"};
o2::framework::Configurable<float> cfg_min_cospa{"cfg_min_cospa", 0.999, "min V0 CosPA"};
Expand Down Expand Up @@ -422,10 +424,10 @@
}

// In case override, don't proceed, please - no CCDB access required
if (d_bz_input > -990) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
d_bz = d_bz_input;
o2::parameters::GRPMagField grpmag;
if (std::fabs(d_bz) > 1e-5) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
grpmag.setL3Current(30000.f / (d_bz / 5.0f));
}
mRunNumber = collision.runNumber();
Expand Down Expand Up @@ -493,7 +495,7 @@
fV0PhotonCut.SetMinCosPA(pcmcuts.cfg_min_cospa);
fV0PhotonCut.SetMaxPCA(pcmcuts.cfg_max_pca);
fV0PhotonCut.SetMaxChi2KF(pcmcuts.cfg_max_chi2kf);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius, pcmcuts.cfg_midL_v0radius, pcmcuts.cfg_midH_v0radius);
fV0PhotonCut.SetAPRange(pcmcuts.cfg_max_alpha_ap, pcmcuts.cfg_max_qt_ap);
fV0PhotonCut.RejectITSib(pcmcuts.cfg_reject_v0_on_itsib);

Expand Down Expand Up @@ -636,7 +638,7 @@
void RotationBackground(const ROOT::Math::PtEtaPhiMVector& meson, ROOT::Math::PtEtaPhiMVector photon1, ROOT::Math::PtEtaPhiMVector photon2, TPhotons const& photons_coll, unsigned int ig1, unsigned int ig2, float eventWeight)
{
// if less than 3 clusters are present skip event since we need at least 3 clusters
if (photons_coll.size() < 3) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
return;
}
const float rotationAngle = o2::constants::math::PIHalf; // rotaion angle 90 degree
Expand Down Expand Up @@ -747,7 +749,7 @@
int zbin = lower_bound(zvtx_bin_edges.begin(), zvtx_bin_edges.end(), collision.posZ()) - zvtx_bin_edges.begin() - 1;
if (zbin < 0) {
zbin = 0;
} else if (static_cast<int>(zvtx_bin_edges.size()) - 2 < zbin) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
zbin = static_cast<int>(zvtx_bin_edges.size()) - 2;
}

Expand All @@ -755,7 +757,7 @@
int centbin = lower_bound(cent_bin_edges.begin(), cent_bin_edges.end(), centrality) - cent_bin_edges.begin() - 1;
if (centbin < 0) {
centbin = 0;
} else if (static_cast<int>(cent_bin_edges.size()) - 2 < centbin) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
centbin = static_cast<int>(cent_bin_edges.size()) - 2;
}

Expand All @@ -763,7 +765,7 @@
int epbin = lower_bound(ep_bin_edges.begin(), ep_bin_edges.end(), ep2) - ep_bin_edges.begin() - 1;
if (epbin < 0) {
epbin = 0;
} else if (static_cast<int>(ep_bin_edges.size()) - 2 < epbin) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
epbin = static_cast<int>(ep_bin_edges.size()) - 2;
}

Expand All @@ -778,7 +780,7 @@

if (occbin < 0) {
occbin = 0;
} else if (static_cast<int>(occ_bin_edges.size()) - 2 < occbin) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
occbin = static_cast<int>(occ_bin_edges.size()) - 2;
}

Expand Down
4 changes: 3 additions & 1 deletion PWGEM/PhotonMeson/Core/Pi0EtaToGammaGammaMC.h
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Expand Up @@ -128,6 +128,8 @@ struct Pi0EtaToGammaGammaMC {
o2::framework::Configurable<float> cfg_max_eta_v0{"cfg_max_eta_v0", 0.8, "max eta for v0 photons at PV"};
o2::framework::Configurable<float> cfg_min_v0radius{"cfg_min_v0radius", 4.0, "min v0 radius"};
o2::framework::Configurable<float> cfg_max_v0radius{"cfg_max_v0radius", 90.0, "max v0 radius"};
o2::framework::Configurable<float> cfg_midL_v0radius{"cfg_midL_v0radius", -1.0, "middle low v0 radius for rejection if >0"};
o2::framework::Configurable<float> cfg_midH_v0radius{"cfg_midH_v0radius", -1.0, "middle high v0 radius for rejection if >0"};
o2::framework::Configurable<float> cfg_max_alpha_ap{"cfg_max_alpha_ap", 0.95, "max alpha for AP cut"};
o2::framework::Configurable<float> cfg_max_qt_ap{"cfg_max_qt_ap", 0.01, "max qT for AP cut"};
o2::framework::Configurable<float> cfg_min_cospa{"cfg_min_cospa", 0.999, "min V0 CosPA"};
Expand Down Expand Up @@ -341,7 +343,7 @@ struct Pi0EtaToGammaGammaMC {
fV0PhotonCut.SetMinCosPA(pcmcuts.cfg_min_cospa);
fV0PhotonCut.SetMaxPCA(pcmcuts.cfg_max_pca);
fV0PhotonCut.SetMaxChi2KF(pcmcuts.cfg_max_chi2kf);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius, pcmcuts.cfg_midL_v0radius, pcmcuts.cfg_midH_v0radius);
fV0PhotonCut.SetAPRange(pcmcuts.cfg_max_alpha_ap, pcmcuts.cfg_max_qt_ap);
fV0PhotonCut.RejectITSib(pcmcuts.cfg_reject_v0_on_itsib);

Expand Down
8 changes: 7 additions & 1 deletion PWGEM/PhotonMeson/Core/V0PhotonCut.cxx
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Expand Up @@ -77,11 +77,17 @@ void V0PhotonCut::SetMaxMeePsiPairDep(std::function<float(float)> psiDepCut)
mMaxMeePsiPairDep = psiDepCut;
LOG(info) << "V0 Photon Cut, set max mee psi pair dep: " << mMaxMeePsiPairDep(0.1);
}
void V0PhotonCut::SetRxyRange(float min, float max)
void V0PhotonCut::SetRxyRange(float min, float max, float midL, float midH)
{
mMinRxy = min;
mMaxRxy = max;
mMidRxyLow = midL;
mMidRxyHigh = midH;
LOG(info) << "V0 Photon selection, set Rxy range: " << mMinRxy << " - " << mMaxRxy;
if (midL >= 0.f && midH >= 0.f && midH > midL) {
LOG(info) << "Rejecting Rxy interval: "
<< mMidRxyLow << " - " << mMidRxyHigh;
}
}
void V0PhotonCut::SetMinCosPA(float min)
{
Expand Down
7 changes: 6 additions & 1 deletion PWGEM/PhotonMeson/Core/V0PhotonCut.h
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Expand Up @@ -864,6 +864,10 @@ class V0PhotonCut : public TNamed
if (v0.v0radius() < mMinRxy || mMaxRxy < v0.v0radius()) {
return false;
}
if (mMidRxyLow > 0.f && mMidRxyHigh > 0.f &&
v0.v0radius() >= mMidRxyLow && v0.v0radius() <= mMidRxyHigh) {
return false;
}
return true;
}

Expand Down Expand Up @@ -1093,7 +1097,7 @@ class V0PhotonCut : public TNamed
void SetPsiPairRange(float min = -3.15, float max = +3.15);
void SetPhivPairRange(float min = 0.f, float max = +3.15);
void SetAPRange(float max_alpha = 0.95, float max_qt = 0.05); // Armenteros Podolanski
void SetRxyRange(float min = 0.f, float max = 180.f);
void SetRxyRange(float min = 0.f, float max = 180.f, float midL = -1.f, float midH = -1.f);
void SetMinCosPA(float min = 0.95);
void SetMaxPCA(float max = 2.f);
void SetMaxChi2KF(float max = 1e+10);
Expand Down Expand Up @@ -1169,6 +1173,7 @@ class V0PhotonCut : public TNamed
float mMinPsiPair{-3.15}, mMaxPsiPair{+3.15};
float mMinPhivPair{0.f}, mMaxPhivPair{+3.15};
float mMinRxy{0.f}, mMaxRxy{180.f};
float mMidRxyLow{-1.f}, mMidRxyHigh{-1.f};
float mMinCosPA{0.95};
float mMaxPCA{2.f};
float mMaxChi2KF{1e+10};
Expand Down
5 changes: 3 additions & 2 deletions PWGEM/PhotonMeson/Tasks/pcmQC.cxx
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Expand Up @@ -107,6 +107,8 @@ struct PCMQC {
Configurable<float> cfg_max_eta_v0{"cfg_max_eta_v0", +0.8, "max eta for v0 photons at PV"};
Configurable<float> cfg_min_v0radius{"cfg_min_v0radius", 4.0, "min v0 radius"};
Configurable<float> cfg_max_v0radius{"cfg_max_v0radius", 90.0, "max v0 radius"};
Configurable<float> cfg_midL_v0radius{"cfg_midL_v0radius", -1.0, "middle low v0 radius for rejection if >0"};
Configurable<float> cfg_midH_v0radius{"cfg_midH_v0radius", -1.0, "middle high v0 radius for rejection if >0"};
Configurable<float> cfg_max_alpha_ap{"cfg_max_alpha_ap", 0.95, "max alpha for AP cut"};
Configurable<float> cfg_max_qt_ap{"cfg_max_qt_ap", 0.01, "max qT for AP cut"};
Configurable<float> cfg_min_cospa{"cfg_min_cospa", 0.999, "min V0 CosPA"};
Expand Down Expand Up @@ -320,7 +322,7 @@ struct PCMQC {
fV0PhotonCut.SetMinCosPA(pcmcuts.cfg_min_cospa);
fV0PhotonCut.SetMaxPCA(pcmcuts.cfg_max_pca);
fV0PhotonCut.SetMaxChi2KF(pcmcuts.cfg_max_chi2kf);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius, pcmcuts.cfg_midL_v0radius, pcmcuts.cfg_midH_v0radius);
fV0PhotonCut.SetAPRange(pcmcuts.cfg_max_alpha_ap, pcmcuts.cfg_max_qt_ap);
fV0PhotonCut.RejectITSib(pcmcuts.cfg_reject_v0_on_itsib);

Expand Down Expand Up @@ -513,7 +515,6 @@ struct PCMQC {
for (const auto& v0 : v0photons_coll) {
auto pos = v0.template posTrack_as<aod::V0Legs>();
auto ele = v0.template negTrack_as<aod::V0Legs>();

if (!fV0PhotonCut.IsSelected<decltype(v0), aod::V0Legs>(v0)) {
continue;
}
Expand Down
4 changes: 3 additions & 1 deletion PWGEM/PhotonMeson/Tasks/pcmQCMC.cxx
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Expand Up @@ -126,6 +126,8 @@ struct PCMQCMC {
Configurable<float> cfg_max_eta_v0{"cfg_max_eta_v0", +0.8, "max eta for v0 photons at PV"};
Configurable<float> cfg_min_v0radius{"cfg_min_v0radius", 4.0, "min v0 radius"};
Configurable<float> cfg_max_v0radius{"cfg_max_v0radius", 90.0, "max v0 radius"};
Configurable<float> cfg_midL_v0radius{"cfg_midL_v0radius", -1.0, "middle low v0 radius for rejection if >0"};
Configurable<float> cfg_midH_v0radius{"cfg_midH_v0radius", -1.0, "middle high v0 radius for rejection if >0"};
Configurable<float> cfg_max_alpha_ap{"cfg_max_alpha_ap", 0.95, "max alpha for AP cut"};
Configurable<float> cfg_max_qt_ap{"cfg_max_qt_ap", 0.01, "max qT for AP cut"};
Configurable<float> cfg_min_cospa{"cfg_min_cospa", 0.999, "min V0 CosPA"};
Expand Down Expand Up @@ -404,7 +406,7 @@ struct PCMQCMC {
fV0PhotonCut.SetMinCosPA(pcmcuts.cfg_min_cospa);
fV0PhotonCut.SetMaxPCA(pcmcuts.cfg_max_pca);
fV0PhotonCut.SetMaxChi2KF(pcmcuts.cfg_max_chi2kf);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius, pcmcuts.cfg_midL_v0radius, pcmcuts.cfg_midH_v0radius);
fV0PhotonCut.SetAPRange(pcmcuts.cfg_max_alpha_ap, pcmcuts.cfg_max_qt_ap);
fV0PhotonCut.RejectITSib(pcmcuts.cfg_reject_v0_on_itsib);

Expand Down
4 changes: 3 additions & 1 deletion PWGEM/PhotonMeson/Tasks/prefilterPhoton.cxx
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Expand Up @@ -110,6 +110,8 @@ struct prefilterPhoton {
Configurable<float> cfg_max_eta_v0{"cfg_max_eta_v0", +0.9, "max eta for v0 photons at PV"};
Configurable<float> cfg_min_v0radius{"cfg_min_v0radius", 4.0, "min v0 radius"};
Configurable<float> cfg_max_v0radius{"cfg_max_v0radius", 90.0, "max v0 radius"};
Configurable<float> cfg_midL_v0radius{"cfg_midL_v0radius", -1.0, "middle low v0 radius for rejection if >0"};
Configurable<float> cfg_midH_v0radius{"cfg_midH_v0radius", -1.0, "middle high v0 radius for rejection if >0"};
Configurable<float> cfg_max_alpha_ap{"cfg_max_alpha_ap", 0.95, "max alpha for AP cut"};
Configurable<float> cfg_max_qt_ap{"cfg_max_qt_ap", 0.01, "max qT for AP cut"};
Configurable<float> cfg_min_cospa{"cfg_min_cospa", 0.99, "min V0 CosPA"};
Expand Down Expand Up @@ -274,7 +276,7 @@ struct prefilterPhoton {
fV0PhotonCut.SetMinCosPA(pcmcuts.cfg_min_cospa);
fV0PhotonCut.SetMaxPCA(pcmcuts.cfg_max_pca);
fV0PhotonCut.SetMaxChi2KF(pcmcuts.cfg_max_chi2kf);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius);
fV0PhotonCut.SetRxyRange(pcmcuts.cfg_min_v0radius, pcmcuts.cfg_max_v0radius, pcmcuts.cfg_midL_v0radius, pcmcuts.cfg_midH_v0radius);
fV0PhotonCut.SetAPRange(pcmcuts.cfg_max_alpha_ap, pcmcuts.cfg_max_qt_ap);
fV0PhotonCut.RejectITSib(pcmcuts.cfg_reject_v0_on_itsib);

Expand Down
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