From 745b61828fad09ba78d936cd4a8f98e25ba824f6 Mon Sep 17 00:00:00 2001
From: "s.zharko@gsi.de" <s.zharko@gsi.de>
Date: Thu, 30 Jan 2025 01:18:07 +0100
Subject: [PATCH] - ca: misalignment tolerances of x and y are set to 0 -
V0Finder: - YAML config - cuts on velocity of pion and proton candidates
- enhanced cut for decay length (0.1 -> 5 cm)
---
algo/evselector/KfpfV0FinderConfig.h | 74 ++++++++++++++++++++++++++++
1 file changed, 74 insertions(+)
create mode 100644 algo/evselector/KfpfV0FinderConfig.h
diff --git a/algo/evselector/KfpfV0FinderConfig.h b/algo/evselector/KfpfV0FinderConfig.h
new file mode 100644
index 0000000000..cbeaec0a76
--- /dev/null
+++ b/algo/evselector/KfpfV0FinderConfig.h
@@ -0,0 +1,74 @@
+/* Copyright (C) 2025 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
+ SPDX-License-Identifier: GPL-3.0-only
+ Authors: Sergei Zharko [committer] */
+
+/// \file KfpfV0FinderConfig.h
+/// \date 29.01.2025
+/// \brief Configuration structure for V0 selector in mCBM
+/// \author Sergei Zharko <s.zharko@gsi.de>
+
+#pragma once
+
+#include "yaml/Yaml.h"
+
+#include <vector>
+
+namespace cbm::algo::kfpf
+{
+ /// \struct CutsKfpf
+ /// \brief Cuts for the KFParticleFinder
+ struct CutsKfpf {
+ float minDecayLength; ///< Minimal decay length of particles [cm]
+ float minDecayLDL; ///< Minimal value of decay length to decay length error ratio
+ float maxChi2NdfPrim; ///< Maximal chi2/NDF for primary particles (coming from the PV)
+ float maxChi2NdfGeo; ///< Maximal chi2/NDF for V0 candidates
+
+ CBM_YAML_PROPERTIES(
+ yaml::Property(&CutsKfpf::minDecayLength, "min_decay_length", "Minimal decay length of particles [cm]"),
+ yaml::Property(&CutsKfpf::minDecayLDL, "min_decay_ldl", "Minimal value of decay length to decay length error ratio"),
+ yaml::Property(&CutsKfpf::maxChi2NdfPrim, "max_chi2_ndf_prim", "Maximal chi2/NDF for primary particles"),
+ yaml::Property(&CutsKfpf::maxChi2NdfGeo, "max_chi2_ndf_geo", "Maximal chi2/NDF for V0 candidates"));
+ };
+
+ /// \struct ParticlePid
+ /// \brief PID and pre-selection cuts for a given particle
+ struct ParticlePid {
+ int pdg; ///< PDG code for particle
+ double minDca; ///< Minimal DCA to PV [cm]
+ double minVelocity; ///< Minimal velocity [cm/ns]
+ double maxVelocity; ///< Maximal velocity [cm/ns]
+
+ CBM_YAML_PROPERTIES(
+ yaml::Property(&ParticlePid::pdg, "pdg", "PDG code of the particle"),
+ yaml::Property(&ParticlePid::minDca, "min_dca", "Minimal DCA to PV [cm]"),
+ yaml::Property(&ParticlePid::minVelocity, "min_velocity", "Minimal velocity [cm/ns]"),
+ yaml::Property(&ParticlePid::maxVelocity, "max_velocity", "Maximal velocity [cm/ns]"));
+ };
+
+ /// \struct Cuts;
+ struct Cuts {
+ CutsKfpf kfpf; ///< KFParticleFinder specific cuts
+ std::vector<ParticlePid> particles; ///< Daughter PID cuts and other properties
+
+ CBM_YAML_PROPERTIES(
+ yaml::Property(&Cuts::kfpf, "kfpf", "Specific cuts for the KFParticleFinder"),
+ yaml::Property(&Cuts::particles, "particles", "Particle identification cuts and properties"));
+ };
+
+ /// \struct LambdaFinderConfig
+ /// \brief Configuration for the V0 finder
+ struct V0FinderConfig {
+ Cuts cuts; ///< Different selection cuts
+ double tZeroOffset; ///< Offset for T0 [ns]
+ double qpAssignedUncertainty; ///< Assigned relative uncertainty for q/p estimation
+ int primaryAssignedPdg; ///< Assigned PDG hypothesis for primary particles
+ int reconstructPdg; ///< PDG of the particle, the decay of which is to be reconstructed
+
+ CBM_YAML_PROPERTIES(
+ yaml::Property(&V0FinderConfig::cuts, "cuts", "Different selection cuts"),
+ yaml::Property(&V0FinderConfig::tZeroOffset, "t0_offset", "The t0 offset [ns]"),
+ yaml::Property(&V0FinderConfig::qpAssignedUncertainty, "qa_uncertainty", "Assigned relative uncertainty for q/p"),
+ yaml::Property(&V0FinderConfig::primaryAssignedPdg, "primary_pdg", "Assigned PDG code for primary tracks"),
+ yaml::Property(&V0FinderConfig::reconstructPdg, "reconstruct_pdg", "PDG code of the particle to be reconstructed"));
+ };
+} // namespace cbm::algo::kfpf
--
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