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Commit 9b50887a authored by Valerio Ippolito's avatar Valerio Ippolito Committed by Marija Vranjes Milosavljevic
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split muComb::g4Match to separate call to extrapolator from loop over ID track collection 

split muComb::g4Match to separate call to extrapolator from loop over ID track collection
parent 2c16e06c
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Trigger/TrigAlgorithms/TrigmuComb/src/muComb.cxx
+ 112
− 84
View file @ 9b50887a
......@@ -97,7 +97,7 @@ int muComb::drptMatch(double pt, double eta, double phi, double id_pt, double id
double tmp_deta = std::max(eta, id_eta) - std::min(eta, id_eta);
double tmp_dphi = std::max(phi, id_phi) - std::min(phi, id_phi);
if (tmp_dphi >= M_PI) tmp_dphi = 2 * M_PI - tmp_dphi;
double tmp_dr = sqrt(tmp_deta * tmp_deta + tmp_dphi * tmp_dphi);
double tmp_dr = std::sqrt(tmp_deta * tmp_deta + tmp_dphi * tmp_dphi);
dphi = tmp_dphi;
deta = tmp_deta;
......@@ -114,7 +114,7 @@ int muComb::drptMatch(double pt, double eta, double phi, double id_pt, double id
<< " / " << (passDR ? "true" : "false"));
if (algo == 1 && winPt > 0) {
double tmp_dpt = fabs(fabs(pt) - fabs(id_pt)) / Gaudi::Units::GeV; //don't use charge info
double tmp_dpt = std::fabs(std::fabs(pt) - std::fabs(id_pt)) / Gaudi::Units::GeV; //don't use charge info
if (tmp_dpt > winPt) passPt = false;
ATH_MSG_DEBUG( " REGTEST MU-ID match / dpt (GeV) / threshold (GeV) / result:"
<< " / " << tmp_dpt
......@@ -126,41 +126,41 @@ int muComb::drptMatch(double pt, double eta, double phi, double id_pt, double id
else return 1;
}
// muon-trk match based on Geant4 backextrapolated SA Muon matched with ID track
// return 0 --> match, 1/2/3/4/5/6 --> no match (muon pt zero, muon angle zero, ID pt zero, fail eta match, fail phi match, fail chi2 match)
int muComb::g4Match(const xAOD::L2StandAloneMuon* feature,
double id_eta, double id_phi, double id_pt, double id_charge, double id_eeta, double id_ephi, double id_eipt,
double& combPtInv, double& combPtRes, double& deta, double& dphi, double& chi2, int& ndof) const
// get extrapolated muon properties
// status 0 --> OK, 1/2 --> no extrapolation (muon pt zero, muon angle zero)
ExtrapolationResult muComb::getExtrapolatedMuon(const xAOD::L2StandAloneMuon* feature) const
{
ATH_MSG_DEBUG("in getExtrapolatedMuon");
ExtrapolationResult result;
const EventContext& ctx = Gaudi::Hive::currentContext();
chi2 = 1.0e30;
ndof = 0;
//muFast parameters (in MeV!)
double phi = feature->phiMS();
//double eta = feature->etaMS();
double theta = 2.*atan(exp(-feature->etaMS()));
double theta = 2.*std::atan(std::exp(-feature->etaMS()));
double p = 0.0;
if (sin(theta) != 0) {
p = (feature->pt() * Gaudi::Units::GeV) / sin(theta);
if (std::sin(theta) != 0) {
p = (feature->pt() * Gaudi::Units::GeV) / std::sin(theta);
} else {
return 2; //No match if muon angle is zero
result.status = 2; //No match if muon angle is zero
return result;
}
double charge = 1.0;
result.charge = 1.0;
double q_over_p = 0.;
if (p != 0.) {
q_over_p = 1. / p;
charge = p / fabs(p);
result.charge = p / std::fabs(p);
} else {
return 1; //No match if muon Pt is zero
result.status = 1; //No match if muon Pt is zero
return result;
}
double pt = feature->pt() * Gaudi::Units::GeV;
//double ptinv = 1/pt;
double eptinv = feature->deltaPt() * Gaudi::Units::GeV / pt / pt;
bool isBarrel = ((feature->sAddress() != -1) ? true : false);
double etaShift = (isBarrel ? 0 : charge * 0.01);
result.isBarrel = ((feature->sAddress() != -1) ? true : false);
double etaShift = (result.isBarrel ? 0 : result.charge * 0.01);
bool doFix = kFALSE;
//Superpoints
......@@ -173,11 +173,11 @@ int muComb::g4Match(const xAOD::L2StandAloneMuon* feature,
double sp2_z = feature->superPointZ(middle);
double sp2_R = feature->superPointR(middle);
if ((fabs(sp1_R) < 1000.)) {
if ((std::fabs(sp1_R) < 1000.)) {
sp1_z *= 10.;
sp1_R *= 10.;
}
if ((fabs(sp2_R) < 1300.)) {
if ((std::fabs(sp2_R) < 1300.)) {
sp2_z *= 10.;
}
......@@ -186,22 +186,62 @@ int muComb::g4Match(const xAOD::L2StandAloneMuon* feature,
if (R == 0. && z == 0.) { //treat patological endcap cases
doFix = kTRUE;
if (fabs(sp2_R) > 1300.) {
if (std::fabs(sp2_R) > 1300.) {
z = sp2_z;
if (z == 0.) z = 7600.;
R = z * tan(theta);
theta = 2.*atan(exp(-(feature->etaMS() - etaShift)));
R = z * std::tan(theta);
theta = 2.*std::atan(std::exp(-(feature->etaMS() - etaShift)));
}
}
double x = R * cos(phi);
double y = R * sin(phi);
double x = R * std::cos(phi);
double y = R * std::sin(phi);
Amg::Vector3D vertex(x, y, z);
Trk::PerigeeSurface beamSurface;
Trk::PerigeeSurface pgsf(vertex);
Trk::Perigee perigeeMS(0., 0., phi, theta, q_over_p, pgsf);
std::unique_ptr<const Trk::TrackParameters> muonPerigee
(m_backExtrapolatorG4->extrapolate(ctx,perigeeMS, beamSurface, Trk::oppositeMomentum, true, Trk::muon));
//Protection against failing extrapolation
if (!muonPerigee) { //G4 probably failed, getting LUT extrapolated values
result.eta = feature->eta();
result.phi = feature->phi();
} else {
double extr_theta = muonPerigee -> parameters()[Trk::theta];
result.phi = muonPerigee -> parameters()[Trk::phi0];
result.eta = -std::log(std::tan(extr_theta / 2.));
if (doFix) result.eta = -std::log(std::tan(theta / 2.));
}
result.eeta = muCombUtil::getG4ExtEtaRes(feature->pt(), feature->etaMS());
result.ephi = muCombUtil::getG4ExtPhiRes(feature->pt(), feature->etaMS());
result.ptinv = 1.0e33;
if (pt != 0) result.ptinv = 1. / pt;
result.eptinv = eptinv;
result.isRpcFailure = feature->isRpcFailure();
result.isTgcFailure = feature->isTgcFailure();
result.status = 0; // can go ahead in matching logic
return result;
}
// muon-trk match based on Geant4 backextrapolated SA Muon matched with ID track
// return 0 --> match, 1/2/3/4/5/6 --> no match (muon pt zero, muon angle zero, ID pt zero, fail eta match, fail phi match, fail chi2 match)
int muComb::g4Match(const ExtrapolationResult& extr,
double id_eta, double id_phi, double id_pt, double id_charge, double id_eeta, double id_ephi, double id_eipt,
double& combPtInv, double& combPtRes, double& deta, double& dphi, double& chi2, int& ndof) const
{
ATH_MSG_DEBUG("in g4Match");
if (extr.status != 0) return extr.status; // propagates the badness of the extrapolated muon, if appropriate
chi2 = 1.0e30;
ndof = 0;
//ID parameters
double id_eptinv_OLD = muCombUtil::getIDSCANRes(m_IDSCANRes_barrel, m_IDSCANRes_endcap1, m_IDSCANRes_endcap2,
m_IDSCANRes_endcap3, m_IDSCANRes_endcap4, id_pt, id_eta);
......@@ -214,64 +254,44 @@ int muComb::g4Match(const xAOD::L2StandAloneMuon* feature,
double id_eptinv = id_eipt; //now taken from Track itself ...
std::unique_ptr<const Trk::TrackParameters> muonPerigee
(m_backExtrapolatorG4->extrapolate(ctx,perigeeMS, beamSurface, Trk::oppositeMomentum, true, Trk::muon));
//Protection against failing extrapolation
double extr_eta;
double extr_phi;
if (!muonPerigee) { //G4 probably failed, getting LUT extrapolated values
extr_eta = feature->eta();
extr_phi = feature->phi();
} else {
double extr_theta = muonPerigee -> parameters()[Trk::theta];
extr_phi = muonPerigee -> parameters()[Trk::phi0];
extr_eta = -log(tan(extr_theta / 2.));
if (doFix) extr_eta = -log(tan(theta / 2.));
}
double extr_eeta = muCombUtil::getG4ExtEtaRes(feature->pt(), feature->etaMS());
double extr_ephi = muCombUtil::getG4ExtPhiRes(feature->pt(), feature->etaMS());
double extr_ptinv = 1.0e33;
if (pt != 0) extr_ptinv = 1. / pt;
double extr_eptinv = eptinv;
//Combined muon parameters
combPtInv = muCombUtil::getCombinedAverage(extr_ptinv, extr_eptinv, id_ptinv, id_eptinv);
combPtRes = muCombUtil::getCombinedAverageSigma(extr_eptinv, id_eptinv);
double q_tmp = charge;
combPtInv = muCombUtil::getCombinedAverage(extr.ptinv, extr.eptinv, id_ptinv, id_eptinv);
combPtRes = muCombUtil::getCombinedAverageSigma(extr.eptinv, id_eptinv);
double q_tmp = extr.charge;
if (m_ChargeStrategy == 1) q_tmp = id_charge;
else if (m_ChargeStrategy == 2) {
if (1. / combPtInv > 50000.) q_tmp = charge;
if (1. / combPtInv > 50000.) q_tmp = extr.charge;
else q_tmp = id_charge;
}
combPtInv *= q_tmp;
//Masaki/Kunihiro treatment of TGC/RPC readout problems
ATH_MSG_DEBUG( " Enlarge phi matching error in case TGC/RPC readout failed. : " << feature->isRpcFailure() << " / " << feature->isTgcFailure() );
ATH_MSG_DEBUG( " Enlarge phi matching error in case TGC/RPC readout failed. : " << extr.isRpcFailure << " / " << extr.isTgcFailure);
if (feature->isTgcFailure() || feature->isRpcFailure()) extr_ephi *= 2.0;
double ephi_to_use = extr.ephi;
if (extr.isTgcFailure || extr.isRpcFailure) ephi_to_use *= 2.0;
//Match
deta = muCombUtil::getDeltaEta(extr_eta, id_eta);
dphi = muCombUtil::getDeltaPhi(extr_phi, id_phi);
deta = muCombUtil::getDeltaEta(extr.eta, id_eta);
dphi = muCombUtil::getDeltaPhi(extr.phi, id_phi);
int ndof_OLD = 0;
double chi2_OLD = muCombUtil::getChi2(ndof_OLD, combPtInv,
extr_eta, extr_eeta, extr_phi, extr_ephi, extr_ptinv, extr_eptinv,
extr.eta, extr.eeta, extr.phi, ephi_to_use, extr.ptinv, extr.eptinv,
id_eta, 0.0, id_phi, 0.0, id_ptinv, id_eptinv, true);
chi2 = muCombUtil::getStdChi2(ndof, extr_eta, extr_eeta, extr_phi, extr_ephi, extr_ptinv, extr_eptinv,
chi2 = muCombUtil::getStdChi2(ndof, extr.eta, extr.eeta, extr.phi, ephi_to_use, extr.ptinv, extr.eptinv,
id_eta, id_eeta, id_phi, id_ephi, id_ptinv, id_eptinv, m_UseAbsPt);
ATH_MSG_DEBUG(" REGTEST Resolution / OLDIdRes / IdRes / muFastRes / combRes:"
<< " / " << std::setw(11) << id_eptinv_OLD / Gaudi::Units::GeV
<< " / " << std::setw(11) << id_eptinv / Gaudi::Units::GeV
<< " / " << std::setw(11) << extr_eptinv / Gaudi::Units::GeV
<< " / " << std::setw(11) << extr.eptinv / Gaudi::Units::GeV
<< " / " << std::setw(11) << combPtRes / Gaudi::Units::GeV );
ATH_MSG_DEBUG(" REGTEST Momentum / IdPt / muFastPt / CombPt :"
<< " / " << std::setw(11) << 1. / id_ptinv / Gaudi::Units::GeV
<< " / " << std::setw(11) << 1. / extr_ptinv / Gaudi::Units::GeV
<< " / " << std::setw(11) << 1. / extr.ptinv / Gaudi::Units::GeV
<< " / " << std::setw(11) << 1. / combPtInv / Gaudi::Units::GeV );
ATH_MSG_DEBUG(" REGTEST Chi2 / ndof // Chi2OLD / ndofOLD :"
......@@ -284,22 +304,22 @@ int muComb::g4Match(const xAOD::L2StandAloneMuon* feature,
double winEtaSigma = m_WinEta_g4;
double winPhiSigma = m_WinPhi_g4;
double maxChi2 = m_Chi2Max_g4;
if (!isBarrel) {//EC
if (!extr.isBarrel) {//EC
winEtaSigma = m_WinEta_EC_g4;
winPhiSigma = m_WinPhi_EC_g4;
maxChi2 = m_Chi2Max_EC_g4;
}
ATH_MSG_DEBUG(" REGTEST DeltaEta / DeltaPhi / WinEta / WinPhi:"
<< " / " << std::setw(11) << fabs(deta)
<< " / " << std::setw(11) << fabs(dphi)
<< " / " << std::setw(11) << m_WeightEta_g4*winEtaSigma*sqrt(extr_eeta * extr_eeta)
<< " / " << std::setw(11) << m_WeightPhi_g4*winPhiSigma*sqrt(extr_ephi * extr_ephi) );
<< " / " << std::setw(11) << std::fabs(deta)
<< " / " << std::setw(11) << std::fabs(dphi)
<< " / " << std::setw(11) << m_WeightEta_g4*winEtaSigma*std::sqrt(extr.eeta * extr.eeta)
<< " / " << std::setw(11) << m_WeightPhi_g4*winPhiSigma*std::sqrt(ephi_to_use * ephi_to_use) );
if (fabs(deta) > m_WeightEta_g4 * winEtaSigma * sqrt(extr_eeta * extr_eeta)) {
if (std::fabs(deta) > m_WeightEta_g4 * winEtaSigma * std::sqrt(extr.eeta * extr.eeta)) {
return 4;
}
if (fabs(dphi) > m_WeightPhi_g4 * winPhiSigma * sqrt(extr_ephi * extr_ephi)) {
if (std::fabs(dphi) > m_WeightPhi_g4 * winPhiSigma * std::sqrt(ephi_to_use * ephi_to_use)) {
return 5;
}
if (ndof >= m_NdofMin) {
......@@ -328,7 +348,7 @@ int muComb::mfMatch(const xAOD::L2StandAloneMuon* feature,
bool isTS = ((feature->rMS() <= 10.) ? true : false);
bool isBarrel = ((feature->sAddress() != -1) ? true : false);
double charge = pt / fabs(pt);
double charge = pt / std::fabs(pt);
double ptinv = 1. / pt;
double eptinv = feature->deltaPt() * Gaudi::Units::GeV / pt / pt;
......@@ -414,15 +434,15 @@ int muComb::mfMatch(const xAOD::L2StandAloneMuon* feature,
}
ATH_MSG_DEBUG(" REGTEST DeltaEta / DeltaPhi / WinEta / WinPhi:"
<< " / " << std::setw(11) << fabs(deta)
<< " / " << std::setw(11) << fabs(dphi)
<< " / " << std::setw(11) << m_WeightEta*winEtaSigma*sqrt(extr_eeta * extr_eeta)
<< " / " << std::setw(11) << m_WeightPhi*winPhiSigma*sqrt(extr_ephi * extr_ephi) );
<< " / " << std::setw(11) << std::fabs(deta)
<< " / " << std::setw(11) << std::fabs(dphi)
<< " / " << std::setw(11) << m_WeightEta*winEtaSigma*std::sqrt(extr_eeta * extr_eeta)
<< " / " << std::setw(11) << m_WeightPhi*winPhiSigma*std::sqrt(extr_ephi * extr_ephi) );
if (fabs(deta) > m_WeightEta * winEtaSigma * sqrt(extr_eeta * extr_eeta)) {
if (std::fabs(deta) > m_WeightEta * winEtaSigma * std::sqrt(extr_eeta * extr_eeta)) {
return 4;
}
if (fabs(dphi) > m_WeightPhi * winPhiSigma * sqrt(extr_ephi * extr_ephi)) {
if (std::fabs(dphi) > m_WeightPhi * winPhiSigma * std::sqrt(extr_ephi * extr_ephi)) {
return 5;
}
if (ndof >= m_NdofMin) {
......@@ -661,6 +681,14 @@ StatusCode muComb::execute(const EventContext& ctx) const
int matched_trk_idx_tmp = -1;
// retrieve extrapolated muon if G4 extrapolation was
// requested; in this way we don't compute it Ntrk times
// but only once per SA muon
ExtrapolationResult extr;
if (usealgo <= 0 && m_useBackExtrapolatorG4) {//Std match
extr = getExtrapolatedMuon(muonSA);
}
for(const auto trkit:(*idTrackParticles)) {
matched_trk_idx_tmp++;
......@@ -684,12 +712,12 @@ StatusCode muComb::execute(const EventContext& ctx) const
double e_qoverp_id = std::sqrt((trkit)->definingParametersCovMatrix()(Trk::qOverP,Trk::qOverP));
double e_phi_id = std::sqrt((trkit)->definingParametersCovMatrix()(Trk::phi0,Trk::phi0));
double e_theta_id = std::sqrt((trkit)->definingParametersCovMatrix()(Trk::theta,Trk::theta));
double tanthetaov2 = fabs(std::exp(-eta));
double e_eta_id = fabs(0.5 * (1./tanthetaov2 + tanthetaov2) * e_theta_id);
double tanthetaov2 = std::fabs(std::exp(-eta));
double e_eta_id = std::fabs(0.5 * (1./tanthetaov2 + tanthetaov2) * e_theta_id);
double e_qoverpt_id = e_qoverp_id;
double theta_id = (trkit)->theta();
if (sin(theta_id) != 0) e_qoverpt_id /= fabs(sin(theta_id)); //approximate
if (std::sin(theta_id) != 0) e_qoverpt_id /= std::fabs(std::sin(theta_id)); //approximate
ATH_MSG_DEBUG( " Found track: "
<< " with pt (GeV) = " << pt_id / Gaudi::Units::GeV
......@@ -705,9 +733,9 @@ StatusCode muComb::execute(const EventContext& ctx) const
<< ", eipt = " << e_qoverpt_id );
if (usealgo != 3) {
if ((fabs(pt_id) / Gaudi::Units::GeV) < m_PtMinTrk) continue;
if ((std::fabs(pt_id) / Gaudi::Units::GeV) < m_PtMinTrk) continue;
}
if (fabs(eta_id) > m_EtaMaxTrk) continue;
if (std::fabs(eta_id) > m_EtaMaxTrk) continue;
ATH_MSG_DEBUG(" Track selected " );
......@@ -724,7 +752,7 @@ StatusCode muComb::execute(const EventContext& ctx) const
imatch_tmp = mfMatch(muonSA, eta_id, phi_id, pt_id, q_id, ptinv_tmp, ptres_tmp, deta_tmp, dphi_tmp, chi2_tmp, ndof_tmp);
if (imatch_tmp == 0) has_match_tmp = true;
} else { //G4 match
imatch_tmp = g4Match(muonSA, eta_id, phi_id, pt_id, q_id, e_eta_id, e_phi_id, e_qoverpt_id, ptinv_tmp, ptres_tmp, deta_tmp, dphi_tmp, chi2_tmp, ndof_tmp);
imatch_tmp = g4Match(extr, eta_id, phi_id, pt_id, q_id, e_eta_id, e_phi_id, e_qoverpt_id, ptinv_tmp, ptres_tmp, deta_tmp, dphi_tmp, chi2_tmp, ndof_tmp);
if (imatch_tmp == 0) has_match_tmp = true;
}
}
......@@ -733,7 +761,7 @@ StatusCode muComb::execute(const EventContext& ctx) const
if (!has_match_tmp) continue;
// select nearest track
dr_tmp = sqrt(deta_tmp * deta_tmp + dphi_tmp * dphi_tmp);
dr_tmp = std::sqrt(deta_tmp * deta_tmp + dphi_tmp * dphi_tmp);
if (chi2_tmp <= chi2_comb) {//Select nearest track
has_match = true;
......@@ -751,7 +779,7 @@ StatusCode muComb::execute(const EventContext& ctx) const
}//Tracks loop
//Set monitored quantities (monitor only pt>6 GeV/c && standard matching)
if (usealgo == 0 && fabs(pt) >= 6.) {
if (usealgo == 0 && std::fabs(pt) >= 6.) {
ptMS = pt;
etaMS = eta;
phiMS = phi;
......@@ -768,7 +796,7 @@ StatusCode muComb::execute(const EventContext& ctx) const
if (!has_match) {
ErrorFlagMC = 3;
MatchFlagMC = imatch;
if (usealgo == 0 && fabs(pt) >= 6.) efficiency = 0; //monitor only efficiency for mu6 && standard matching
if (usealgo == 0 && std::fabs(pt) >= 6.) efficiency = 0; //monitor only efficiency for mu6 && standard matching
ATH_MSG_DEBUG( " No matched ID tracks --> no match" );
muonCB->setErrorFlag(ErrorFlagMC);
muonCB->setMatchFlag(MatchFlagMC);
......@@ -794,7 +822,7 @@ StatusCode muComb::execute(const EventContext& ctx) const
ptFL = -9999.;
etaFL = -9999.;
phiFL = -9999.;
if (usealgo == 0 && fabs(pt) >= 6.) {
if (usealgo == 0 && std::fabs(pt) >= 6.) {
efficiency = 1;
ptID = pt_id / Gaudi::Units::GeV; //in GeV/c
etaID = eta_id;
......@@ -818,7 +846,7 @@ StatusCode muComb::execute(const EventContext& ctx) const
ATH_MSG_DEBUG( " REGTEST Combination chosen: "
<< " usealgo / IdPt (GeV) / muonPt (GeV) / CombPt (GeV) / chi2 / ndof: " << " / " << usealgo << " / " << pt_id*q_id / Gaudi::Units::GeV << " / " << prt_pt << " / " << 1. / ptinv_comb / Gaudi::Units::GeV << " / " << chi2_comb << " / " << ndof_comb );
muonCB->setPt(fabs(1. / ptinv_comb));
muonCB->setPt(std::fabs(1. / ptinv_comb));
muonCB->setEta(eta_id);
muonCB->setPhi(phi_id);
......@@ -827,7 +855,7 @@ StatusCode muComb::execute(const EventContext& ctx) const
muonCB->setCharge(mcq);
float mcresu = fabs(ptres_comb / (ptinv_comb * ptinv_comb));
float mcresu = std::fabs(ptres_comb / (ptinv_comb * ptinv_comb));
ATH_MSG_DEBUG( " SigmaPt (GeV) is: " << mcresu / Gaudi::Units::GeV );
muonCB->setSigmaPt(mcresu);
......
Trigger/TrigAlgorithms/TrigmuComb/src/muComb.h
+ 18
− 1
View file @ 9b50887a
......@@ -35,6 +35,21 @@
#include "AthenaMonitoringKernel/GenericMonitoringTool.h"
#include "MagFieldConditions/AtlasFieldCacheCondObj.h"
class ExtrapolationResult {
public:
double ptinv;
double eta;
double phi;
double eptinv;
double eeta;
double ephi;
double charge;
bool isBarrel;
int isRpcFailure;
int isTgcFailure;
int status;
};
/** Main LVL2 Algorithm. Sided by a xAOD::L2StandaloneMuon, match the muon spectrometer track with an ID track, and produces a xAOD::L2CombinedMuon. */
class muComb : public AthReentrantAlgorithm
{
......@@ -90,10 +105,12 @@ class muComb : public AthReentrantAlgorithm
double, double, double, double,
double&, double&, double&, double&, double&, int&) const;
int g4Match(const xAOD::L2StandAloneMuon* feature,
int g4Match(const ExtrapolationResult &extr,
double, double, double, double, double, double, double,
double&, double&, double&, double&, double&, int&) const;
ExtrapolationResult getExtrapolatedMuon(const xAOD::L2StandAloneMuon* feature) const;
private:
// Properties
......
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