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Merged
dsekihat merged 1 commit into from
Jun 8, 2024
Merged

PWGEM/PhotonMeson: update event mixing #6435

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3 changes: 3 additions & 0 deletions PWGEM/PhotonMeson/Tasks/dalitzEEQC.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -285,6 +285,9 @@ struct DalitzEEQC {
ROOT::Math::PtEtaPhiMVector v1(t1.pt(), t1.eta(), t1.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;
if (abs(v12.Rapidity()) > maxY) {
return false;
}
float phiv = getPhivPair(t1.px(), t1.py(), t1.pz(), t2.px(), t2.py(), t2.pz(), t1.sign(), t2.sign(), collision.bz());

if (t1.sign() * t2.sign() < 0) { // ULS
Expand Down
7 changes: 7 additions & 0 deletions PWGEM/PhotonMeson/Tasks/dalitzEEQCMC.cxx
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Expand Up @@ -332,6 +332,9 @@ struct DalitzEEQCMC {
ROOT::Math::PtEtaPhiMVector v1(t1.pt(), t1.eta(), t1.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;
if (abs(v12.Rapidity()) > maxY) {
return false;
}
float dca_t1_3d = t1.dca3DinSigma();
float dca_t2_3d = t2.dca3DinSigma();
float dca_ee_3d = std::sqrt((dca_t1_3d * dca_t1_3d + dca_t2_3d * dca_t2_3d) / 2.);
Expand Down Expand Up @@ -532,6 +535,10 @@ struct DalitzEEQCMC {
ROOT::Math::PtEtaPhiMVector v2(t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;

if (abs(v12.Rapidity()) > maxY) {
continue;
}

if (mother_id > -1) {
auto mcmother = mcparticles.iteratorAt(mother_id);
if (mcmother.isPhysicalPrimary() || mcmother.producedByGenerator()) {
Expand Down
49 changes: 27 additions & 22 deletions PWGEM/PhotonMeson/Tasks/dielectronQC.cxx
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Expand Up @@ -77,7 +77,7 @@ struct dielectronQC {
struct : ConfigurableGroup {
std::string prefix = "dileptoncut_group";
Configurable<float> cfg_min_mass{"cfg_min_mass", 0.0, "min mass"};
Configurable<float> cfg_max_mass{"cfg_max_mass", 0.5, "max mass"};
Configurable<float> cfg_max_mass{"cfg_max_mass", 1e+10, "max mass"};
Configurable<float> cfg_min_pair_dca3d{"cfg_min_pair_dca3d", 0.0, "min pair dca3d in sigma"};
Configurable<float> cfg_max_pair_dca3d{"cfg_max_pair_dca3d", 1e+10, "max pair dca3d in sigma"};
Configurable<bool> cfg_apply_phiv{"cfg_apply_phiv", true, "flag to apply phiv cut"};
Expand Down Expand Up @@ -142,8 +142,8 @@ struct dielectronQC {
ep_bin_edges = std::vector<float>(ConfEPBins.value.begin(), ConfEPBins.value.end());
ep_bin_edges.erase(ep_bin_edges.begin());

emh_pos = new o2::aod::pwgem::photonmeson::utils::EventMixingHandler<std::tuple<int, int, int>, std::pair<int, int64_t>, EMTrack>(ndepth);
emh_ele = new o2::aod::pwgem::photonmeson::utils::EventMixingHandler<std::tuple<int, int, int>, std::pair<int, int64_t>, EMTrack>(ndepth);
emh_pos = new o2::aod::pwgem::photonmeson::utils::EventMixingHandler<std::tuple<int, int, int>, std::pair<int, int>, EMTrack>(ndepth);
emh_ele = new o2::aod::pwgem::photonmeson::utils::EventMixingHandler<std::tuple<int, int, int>, std::pair<int, int>, EMTrack>(ndepth);

DefineEMEventCut();
DefineDileptonCut();
Expand Down Expand Up @@ -317,7 +317,8 @@ struct dielectronQC {
template <int ev_id, typename TCollision, typename TTrack1, typename TTrack2>
bool fillPairInfo(TCollision const& collision, TTrack1 const& t1, TTrack2 const& t2)
{
if (t1.trackId() == t2.trackId()) { // this is protection against pairing identical 2 tracks. This happens, when TTCA is used. TTCA can assign a track to several possible collisions.
if (t1.trackId() == t2.trackId()) { // this is protection against pairing 2 identical tracks. This happens, when TTCA is used. TTCA can assign a track to several possible collisions.
// LOGF(info, "event id = %d , same track is found. t1.trackId() = %d, t1.collisionId() = %d, t1.pt() = %f, t1.eta() = %f, t1.phi() = %f, t2.trackId() = %d, t2.collisionId() = %d, t2.pt() = %f, t2.eta() = %f, t2.phi() = %f", ev_id, t1.trackId(), t1.collisionId(), t1.pt(), t1.eta(), t1.phi(), t2.trackId(), t2.collisionId(), t2.pt(), t2.eta(), t2.phi());
return false;
}

Expand All @@ -341,6 +342,10 @@ struct dielectronQC {
ROOT::Math::PtEtaPhiMVector v2(t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;

if (abs(v12.Rapidity()) > maxY) {
return false;
}

float dca_t1_3d = t1.dca3DinSigma();
float dca_t2_3d = t2.dca3DinSigma();
float dca_ee_3d = std::sqrt((dca_t1_3d * dca_t1_3d + dca_t2_3d * dca_t2_3d) / 2.);
Expand Down Expand Up @@ -383,34 +388,34 @@ struct dielectronQC {
epbin = static_cast<int>(ep_bin_edges.size()) - 2;
}

std::pair<int, int64_t> key_df_collision = std::make_pair(ndf, collision.globalIndex());
std::pair<int, int> key_df_collision = std::make_pair(ndf, collision.globalIndex());

std::tuple<int, int, int> tuple_tmp_id1 = std::make_tuple(ndf, collision.globalIndex(), t1.trackId());
std::tuple<int, int, int> tuple_tmp_id2 = std::make_tuple(ndf, collision.globalIndex(), t2.trackId());
std::pair<int, int> pair_tmp_id1 = std::make_pair(ndf, t1.globalIndex());
std::pair<int, int> pair_tmp_id2 = std::make_pair(ndf, t2.globalIndex());

if (t1.sign() > 0) {
if (std::find(used_trackIds.begin(), used_trackIds.end(), tuple_tmp_id1) == used_trackIds.end()) {
if (std::find(used_trackIds.begin(), used_trackIds.end(), pair_tmp_id1) == used_trackIds.end()) {
emh_pos->AddTrackToEventPool(key_df_collision, EMTrack(collision.globalIndex(), t1.trackId(), t1.pt(), t1.eta(), t1.phi(), o2::constants::physics::MassElectron, t1.sign(), t1.dca3DinSigma()));
used_trackIds.emplace_back(tuple_tmp_id1);
used_trackIds.emplace_back(pair_tmp_id1);
fillTrackInfo(t1);
}
} else {
if (std::find(used_trackIds.begin(), used_trackIds.end(), tuple_tmp_id1) == used_trackIds.end()) {
if (std::find(used_trackIds.begin(), used_trackIds.end(), pair_tmp_id1) == used_trackIds.end()) {
emh_ele->AddTrackToEventPool(key_df_collision, EMTrack(collision.globalIndex(), t1.trackId(), t1.pt(), t1.eta(), t1.phi(), o2::constants::physics::MassElectron, t1.sign(), t1.dca3DinSigma()));
used_trackIds.emplace_back(tuple_tmp_id1);
used_trackIds.emplace_back(pair_tmp_id1);
fillTrackInfo(t1);
}
}
if (t2.sign() > 0) {
if (std::find(used_trackIds.begin(), used_trackIds.end(), tuple_tmp_id2) == used_trackIds.end()) {
if (std::find(used_trackIds.begin(), used_trackIds.end(), pair_tmp_id2) == used_trackIds.end()) {
emh_pos->AddTrackToEventPool(key_df_collision, EMTrack(collision.globalIndex(), t2.trackId(), t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron, t2.sign(), t2.dca3DinSigma()));
used_trackIds.emplace_back(tuple_tmp_id2);
used_trackIds.emplace_back(pair_tmp_id2);
fillTrackInfo(t2);
}
} else {
if (std::find(used_trackIds.begin(), used_trackIds.end(), tuple_tmp_id2) == used_trackIds.end()) {
if (std::find(used_trackIds.begin(), used_trackIds.end(), pair_tmp_id2) == used_trackIds.end()) {
emh_ele->AddTrackToEventPool(key_df_collision, EMTrack(collision.globalIndex(), t2.trackId(), t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron, t2.sign(), t2.dca3DinSigma()));
used_trackIds.emplace_back(tuple_tmp_id2);
used_trackIds.emplace_back(pair_tmp_id2);
fillTrackInfo(t2);
}
}
Expand Down Expand Up @@ -451,8 +456,8 @@ struct dielectronQC {
fRegistry.fill(HIST("Track/hTOFNsigmaPr"), track.tpcInnerParam(), track.tofNSigmaPr());
}

o2::aod::pwgem::photonmeson::utils::EventMixingHandler<std::tuple<int, int, int>, std::pair<int, int64_t>, EMTrack>* emh_pos = nullptr;
o2::aod::pwgem::photonmeson::utils::EventMixingHandler<std::tuple<int, int, int>, std::pair<int, int64_t>, EMTrack>* emh_ele = nullptr;
o2::aod::pwgem::photonmeson::utils::EventMixingHandler<std::tuple<int, int, int>, std::pair<int, int>, EMTrack>* emh_pos = nullptr;
o2::aod::pwgem::photonmeson::utils::EventMixingHandler<std::tuple<int, int, int>, std::pair<int, int>, EMTrack>* emh_ele = nullptr;

Filter collisionFilter_centrality = (cfgCentMin < o2::aod::cent::centFT0M && o2::aod::cent::centFT0M < cfgCentMax) || (cfgCentMin < o2::aod::cent::centFT0A && o2::aod::cent::centFT0A < cfgCentMax) || (cfgCentMin < o2::aod::cent::centFT0C && o2::aod::cent::centFT0C < cfgCentMax);
using FilteredMyCollisions = soa::Filtered<MyCollisions>;
Expand All @@ -465,7 +470,7 @@ struct dielectronQC {
Partition<FilteredMyTracks> posTracks = o2::aod::emprimaryelectron::sign > int8_t(0);
Partition<FilteredMyTracks> negTracks = o2::aod::emprimaryelectron::sign < int8_t(0);

std::vector<std::tuple<int, int, int>> used_trackIds;
std::vector<std::pair<int, int>> used_trackIds;
int ndf = 0;
void processQC(FilteredMyCollisions const& collisions, FilteredMyTracks const& tracks)
{
Expand All @@ -485,7 +490,7 @@ struct dielectronQC {

auto posTracks_per_coll = posTracks->sliceByCached(o2::aod::emprimaryelectron::emeventId, collision.globalIndex(), cache);
auto negTracks_per_coll = negTracks->sliceByCached(o2::aod::emprimaryelectron::emeventId, collision.globalIndex(), cache);
// LOGF(info, "centrality = %f , posTracks_per_coll.size() = %d, negTracks_per_coll.size() = %d", centralities[cfgCentEstimator], posTracks_per_coll.size(), negTracks_per_coll.size());
// LOGF(info, "collision.globalIndex() = %d , collision.posZ() = %f , collision.numContrib() = %d, centrality = %f , posTracks_per_coll.size() = %d, negTracks_per_coll.size() = %d", collision.globalIndex(), collision.posZ(), collision.numContrib(), centralities[cfgCentEstimator], posTracks_per_coll.size(), negTracks_per_coll.size());

int nuls = 0, nlspp = 0, nlsmm = 0;
for (auto& [pos, ele] : combinations(CombinationsFullIndexPolicy(posTracks_per_coll, negTracks_per_coll))) { // ULS
Expand Down Expand Up @@ -536,18 +541,18 @@ struct dielectronQC {
}

std::tuple<int, int, int> key_bin = std::make_tuple(zbin, centbin, epbin);
std::pair<int, int64_t> key_df_collision = std::make_pair(ndf, collision.globalIndex());
std::pair<int, int> key_df_collision = std::make_pair(ndf, collision.globalIndex());

// make a vector of selected photons in this collision.
auto selected_posTracks_in_this_event = emh_pos->GetTracksPerCollision(key_df_collision);
auto selected_negTracks_in_this_event = emh_ele->GetTracksPerCollision(key_df_collision);
// LOGF(info, "N selected tracks in current event (%d, %d), npos = %d , nele = %d", ndf, collision.globalIndex(), selected_posTracks_in_this_event.size(), selected_negTracks_in_this_event.size());
// LOGF(info, "N selected tracks in current event (%d, %d), zvtx = %f, centrality = %f , npos = %d , nele = %d, nuls = %d , nlspp = %d, nlsmm = %d", ndf, collision.globalIndex(), collision.posZ(), centralities[cfgCentEstimator], selected_posTracks_in_this_event.size(), selected_negTracks_in_this_event.size(), nuls, nlspp, nlsmm);

auto collisionIds_in_mixing_pool = emh_pos->GetCollisionIdsFromEventPool(key_bin); // pos/ele does not matter.

for (auto& mix_dfId_collisionId : collisionIds_in_mixing_pool) {
int mix_dfId = mix_dfId_collisionId.first;
int64_t mix_collisionId = mix_dfId_collisionId.second;
int mix_collisionId = mix_dfId_collisionId.second;

if (collision.globalIndex() == mix_collisionId && ndf == mix_dfId) { // this never happens. only protection.
continue;
Expand Down
15 changes: 15 additions & 0 deletions PWGEM/PhotonMeson/Tasks/dielectronQCMC.cxx
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Expand Up @@ -382,6 +382,11 @@ struct dielectronQCMC {
ROOT::Math::PtEtaPhiMVector v1(t1.pt(), t1.eta(), t1.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;

if (abs(v12.Rapidity()) > maxY) {
return false;
}

float dca_t1_3d = t1.dca3DinSigma();
float dca_t2_3d = t2.dca3DinSigma();
float dca_ee_3d = std::sqrt((dca_t1_3d * dca_t1_3d + dca_t2_3d * dca_t2_3d) / 2.);
Expand Down Expand Up @@ -697,6 +702,10 @@ struct dielectronQCMC {
ROOT::Math::PtEtaPhiMVector v2(t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;

if (abs(v12.Rapidity()) > maxY) {
continue;
}

if (mother_id > -1) {
auto mcmother = mcparticles.iteratorAt(mother_id);
if (mcmother.isPhysicalPrimary() || mcmother.producedByGenerator()) {
Expand Down Expand Up @@ -818,6 +827,9 @@ struct dielectronQCMC {
ROOT::Math::PtEtaPhiMVector v1(t1.pt(), t1.eta(), t1.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;
if (abs(v12.Rapidity()) > maxY) {
continue;
}
if (hfee_type > -1) {
auto mp1 = mcparticles.iteratorAt(t1.mothersIds()[0]);
auto mp2 = mcparticles.iteratorAt(t2.mothersIds()[0]);
Expand Down Expand Up @@ -872,6 +884,9 @@ struct dielectronQCMC {
ROOT::Math::PtEtaPhiMVector v1(t1.pt(), t1.eta(), t1.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(t2.pt(), t2.eta(), t2.phi(), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;
if (abs(v12.Rapidity()) > maxY) {
continue;
}
if (hfee_type > -1) {
auto mp1 = mcparticles.iteratorAt(t1.mothersIds()[0]);
auto mp2 = mcparticles.iteratorAt(t2.mothersIds()[0]);
Expand Down