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Add momentum vector in track tables #12991

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Merged
jgrosseo merged 3 commits into from
Apr 11, 2024
Merged

Add momentum vector in track tables #12991

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8e8a9f6
Add momentum vector in track tables
vkucera Apr 2, 2024
380a801
Merge branch 'dev' into pvec
vkucera Apr 8, 2024
f26b467
Merge branch 'AliceO2Group:dev' into pvec
vkucera Apr 10, 2024
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16 changes: 16 additions & 0 deletions Framework/Core/include/Framework/AnalysisDataModel.h
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Original file line number Diff line number Diff line change
Expand Up @@ -12,9 +12,12 @@
#define O2_FRAMEWORK_ANALYSISDATAMODEL_H_

#include "Framework/ASoA.h"

#include <cmath>
#include <bitset>
#include <numeric>
#include <utility> // std::move

#include "Framework/DataTypes.h"
#include "CommonConstants/MathConstants.h"
#include "CommonConstants/PhysicsConstants.h"
Expand Down Expand Up @@ -153,6 +156,17 @@ DECLARE_SOA_DYNAMIC_COLUMN(Pz, pz, //! Momentum in z-direction in GeV/c
auto pt = 1.f / std::abs(signed1Pt);
return pt * tgl;
});
DECLARE_SOA_DYNAMIC_COLUMN(PVector, pVector, //! Momentum vector in x,y,z-directions in GeV/c
[](float signed1Pt, float snp, float alpha, float tgl) -> std::array<float, 3> {
const auto pt = 1.f / std::abs(signed1Pt);
// FIXME: GCC & clang should optimize to sincosf
const float cs = cosf(alpha), sn = sinf(alpha);
const auto r = std::sqrt((1.f - snp) * (1.f + snp));
const auto px = pt * (r * cs - snp * sn);
const auto py = pt * (snp * cs + r * sn);
const auto pz = pt * tgl;
return std::move(std::array<float, 3>{std::move(px), std::move(py), std::move(pz)});
});
DECLARE_SOA_EXPRESSION_COLUMN(P, p, float, //! Momentum in Gev/c
ifnode(nabs(aod::track::signed1Pt) <= o2::constants::math::Almost0, o2::constants::math::VeryBig, 0.5f * (ntan(o2::constants::math::PIQuarter - 0.5f * natan(aod::track::tgl)) + 1.f / ntan(o2::constants::math::PIQuarter - 0.5f * natan(aod::track::tgl))) / nabs(aod::track::signed1Pt)));
DECLARE_SOA_DYNAMIC_COLUMN(Energy, energy, //! Track energy, computed under the mass assumption given as input
Expand Down Expand Up @@ -366,6 +380,7 @@ DECLARE_SOA_TABLE_FULL(StoredTracks, "Tracks", "AOD", "TRACK", //! On disk versi
track::Px<track::Signed1Pt, track::Snp, track::Alpha>,
track::Py<track::Signed1Pt, track::Snp, track::Alpha>,
track::Pz<track::Signed1Pt, track::Tgl>,
track::PVector<track::Signed1Pt, track::Snp, track::Alpha, track::Tgl>,
track::Energy<track::Signed1Pt, track::Tgl>,
track::Rapidity<track::Signed1Pt, track::Tgl>,
track::Sign<track::Signed1Pt>,
Expand All @@ -385,6 +400,7 @@ DECLARE_SOA_TABLE_FULL(StoredTracksIU, "Tracks_IU", "AOD", "TRACK_IU", //! On di
track::Px<track::Signed1Pt, track::Snp, track::Alpha>,
track::Py<track::Signed1Pt, track::Snp, track::Alpha>,
track::Pz<track::Signed1Pt, track::Tgl>,
track::PVector<track::Signed1Pt, track::Snp, track::Alpha, track::Tgl>,
track::Energy<track::Signed1Pt, track::Tgl>,
track::Rapidity<track::Signed1Pt, track::Tgl>,
track::Sign<track::Signed1Pt>,
Expand Down