SeedFilterConfig.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2020 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#pragma once

// System include(s).
#include <cstddef>

namespace Acts {

struct SeedFilterConfig {
  // the allowed delta between two inverted seed radii for them to be considered
  // compatible.
  float deltaInvHelixDiameter = 0.00003;
  // the impact parameters (d0) is multiplied by this factor and subtracted from
  // weight
  float impactWeightFactor = 1.;
  // seed weight increased by this value if a compatible seed has been found.
  float compatSeedWeight = 200.;
  // minimum distance between compatible seeds to be considered for weight boost
  float deltaRMin = 5.;
  // in dense environments many seeds may be found per middle space point.
  // only seeds with the highest weight will be kept if this limit is reached.
  unsigned int maxSeedsPerSpM = 10;
  // how often do you want to increase the weight of a seed for finding a
  // compatible seed?
  size_t compatSeedLimit = 2;
  // Tool to apply experiment specific cuts on collected middle space points
};

}  // namespace Acts