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TPC: add ITS-TPC combined-momentum sampling trigger #15599

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TPC: add ITS-TPC combined-momentum sampling trigger #15599

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14 changes: 12 additions & 2 deletions Detectors/TPC/workflow/src/TPCTimeSeriesSpec.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -1335,12 +1335,17 @@ class TPCTimeSeries : public Task
if (mUnbinnedWriter && mStreamer[iThread]) {
const float factorPt = mSamplingFactor;
bool writeData = true;
bool writeDataITSTPC = false;
float weight = 0;
float weightITSTPC = 0;
if (mSampleTsallis) {
std::uniform_real_distribution<> distr(0., 1.);
writeData = o2::math_utils::Tsallis::downsampleTsallisCharged(tracksTPC[iTrk].getPt(), factorPt, mSqrt, weight, distr(mGenerator[iThread]));
if (hasITSTPC) {
writeDataITSTPC = o2::math_utils::Tsallis::downsampleTsallisCharged(tracksITSTPC[idxITSTPC.front()].getPt(), factorPt, mSqrt, weightITSTPC, distr(mGenerator[iThread]));
}
}
if (writeData || minBiasOk) {
if (writeData || writeDataITSTPC || minBiasOk) {
auto clusterMask = makeClusterBitMask(trackFull);
const auto& trkOrig = tracksTPC[iTrk];
const bool isNearestVtx = (idxITSTPC.back() == -1); // is nearest vertex in case no vertex was found
Expand Down Expand Up @@ -1395,7 +1400,11 @@ class TPCTimeSeries : public Task
}
}
}
const int triggerMask = 0x1 * minBiasOk + 0x2 * writeData;
// triggerMask bits:
// 0x1: flat minimum-bias stream
// 0x2: Tsallis stream sampled with TPC-only pT
// 0x4: Tsallis stream sampled with ITS-TPC combined pT
const int triggerMask = 0x1 * minBiasOk + 0x2 * writeData + 0x4 * writeDataITSTPC;

float deltaP2ConstrVtx = -999;
float deltaP3ConstrVtx = -999;
Expand Down Expand Up @@ -1446,6 +1455,7 @@ class TPCTimeSeries : public Task
<< "factorMinBias=" << factorMinBias
<< "factorPt=" << factorPt
<< "weight=" << weight
<< "weight_ITSTPC=" << weightITSTPC
<< "dcar_tpc_vertex=" << dcaTPCAtVertex
<< "dcar_tpc=" << dca[0]
<< "dcaz_tpc=" << dca[1]
Expand Down
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