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[PWGCF] refactoring the code for systematic study of V0 mesons #13829

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[PWGCF] refactoring the code for systematic study of V0 mesons #13829

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e48f23a
refactoring the code for systematic study of V0 mesons
Nov 14, 2025
b7ce6ed
updated
Nov 14, 2025
45f7a7f
updated2
Nov 14, 2025
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48 changes: 48 additions & 0 deletions PWGCF/DataModel/CorrelationsDerived.h
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@

namespace cfmcparticle
{
DECLARE_SOA_INDEX_COLUMN(CFMcCollision, cfMcCollision); //! Index to reduced MC collision

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[name/o2-column] 

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_COLUMN(Pt, pt, float); //! pT (GeV/c)
DECLARE_SOA_COLUMN(Eta, eta, float); //! Pseudorapidity
DECLARE_SOA_COLUMN(Phi, phi, float); //! Phi angle
Expand All @@ -48,7 +48,7 @@

namespace cfcollision
{
DECLARE_SOA_INDEX_COLUMN(CFMcCollision, cfMcCollision); //! Index to reduced MC collision

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[name/o2-column] 

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_COLUMN(Multiplicity, multiplicity, float); //! Centrality/multiplicity value
} // namespace cfcollision
DECLARE_SOA_TABLE(CFCollisions, "AOD", "CFCOLLISION", //! Reduced collision table
Expand All @@ -64,8 +64,8 @@

namespace cftrack
{
DECLARE_SOA_INDEX_COLUMN(CFCollision, cfCollision); //! Index to collision

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DECLARE_SOA_INDEX_COLUMN(CFMcParticle, cfMCParticle); //! Index to MC particle

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[name/o2-column] 

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.
DECLARE_SOA_COLUMN(Pt, pt, float); //! pT (GeV/c)
DECLARE_SOA_COLUMN(Eta, eta, float); //! Pseudorapidity
DECLARE_SOA_COLUMN(Phi, phi, float); //! Phi angle
Expand Down Expand Up @@ -127,8 +127,8 @@

namespace cf2prongtrack
{
DECLARE_SOA_INDEX_COLUMN_FULL(CFTrackProng0, cfTrackProng0, int, CFTracks, "_0"); //! Index to prong 1 CFTrack

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DECLARE_SOA_INDEX_COLUMN_FULL(CFTrackProng1, cfTrackProng1, int, CFTracks, "_1"); //! Index to prong 2 CFTrack

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DECLARE_SOA_COLUMN(Pt, pt, float); //! pT (GeV/c)
DECLARE_SOA_COLUMN(Eta, eta, float); //! Pseudorapidity
DECLARE_SOA_COLUMN(Phi, phi, float); //! Phi angle
Expand Down Expand Up @@ -165,6 +165,54 @@
using CF2ProngTrack = CF2ProngTracks::iterator;
//------

// adding table for systematic
// ---- systematics bit layout (cut × WP) ----
namespace cf2prngcuttrack
{

// Keys to refer back to collisions/tracks (handy for checks)
DECLARE_SOA_INDEX_COLUMN_FULL(CFTrackProng0, cfTrackProng0, int, CFTracks, "_0");

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DECLARE_SOA_INDEX_COLUMN_FULL(CFTrackProng1, cfTrackProng1, int, CFTracks, "_1");

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// Kinematics + decay (to keep downstream code unchanged)
DECLARE_SOA_COLUMN(Pt, pt, float);
DECLARE_SOA_COLUMN(Eta, eta, float);
DECLARE_SOA_COLUMN(Phi, phi, float);
DECLARE_SOA_COLUMN(InvMass, invMass, float);
DECLARE_SOA_COLUMN(Decay, decay, uint8_t);

// Systematics bitmasks (flattened cut × WP)
DECLARE_SOA_COLUMN(SelMask0, selMask0, uint64_t); // bits [0..63]
DECLARE_SOA_COLUMN(SelMask1, selMask1, uint64_t); // bits [64..127]

// Cut categories; WP index is handled separately
enum CutId : uint8_t {
kCutCosPA, // cosPA
kCutDcaDau, // DCA(daughters)
kCutDcaPi, // DCA(pi→PV)
kCutDcaPr, // DCA(pr→PV)
kCutRadMin, // radmin
kCutLT, // lifetime
kCutPID, // PID
kNCuts // to count total number of systematic cuts
};
static constexpr int kMaxWP = 2; // reserve 16 WPs per cut
static constexpr int kTotalBits = kNCuts * kMaxWP; // total bit capacity

} // namespace cf2prngcuttrack

// Self-contained “systematics” table
DECLARE_SOA_TABLE(CF2PrngCutTracks, "AOD", "CF2PRNGCUTTRACK",
o2::soa::Index<>,
cftrack::CFCollisionId,
cf2prngcuttrack::CFTrackProng0Id,
cf2prngcuttrack::CFTrackProng1Id,
cf2prngcuttrack::Pt, cf2prngcuttrack::Eta, cf2prngcuttrack::Phi,
cf2prngcuttrack::InvMass, cf2prngcuttrack::Decay,
cf2prngcuttrack::SelMask0, cf2prngcuttrack::SelMask1);
using CF2PrngCutTrack = CF2PrngCutTracks::iterator;
///-------------------

namespace cf2prongtrackml
{
DECLARE_SOA_COLUMN(MlProbD0, mlProbD0, std::vector<float>); //!
Expand All @@ -179,8 +227,8 @@

namespace cf2prongmcpart
{
DECLARE_SOA_INDEX_COLUMN_FULL(CFParticleDaugh0, cfParticleDaugh0, int, CFMcParticles, "_0"); //! Index to prong 1 CFMcParticle

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DECLARE_SOA_INDEX_COLUMN_FULL(CFParticleDaugh1, cfParticleDaugh1, int, CFMcParticles, "_1"); //! Index to prong 2 CFMcParticle

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DECLARE_SOA_COLUMN(Decay, decay, uint8_t); //! Particle decay and flags
DECLARE_SOA_DYNAMIC_COLUMN(McDecay, mcDecay, [](uint8_t decay) -> uint8_t { return decay & 0x7f; }); //! MC particle decay
enum ParticleDecayFlags {
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