Belle II Software development
BoostVectorAlgorithm.cc
1/**************************************************************************
2 * basf2 (Belle II Analysis Software Framework) *
3 * Author: The Belle II Collaboration *
4 * *
5 * See git log for contributors and copyright holders. *
6 * This file is licensed under LGPL-3.0, see LICENSE.md. *
7 **************************************************************************/
8
9#include <mdst/dbobjects/CollisionBoostVector.h>
10#include <reconstruction/calibration/BeamSpotBoostInvMass/BoostVectorAlgorithm.h>
11#include <reconstruction/calibration/BeamSpotBoostInvMass/BoostVectorStandAlone.h>
12#include <reconstruction/calibration/BeamSpotBoostInvMass/calibTools.h>
13
14#include <Eigen/Dense>
15
16using Eigen::Vector3d;
17using Eigen::Matrix3d;
18
19using namespace Belle2;
20
21using Belle2::BoostVectorCalib::getEvents;
22using Belle2::BoostVectorCalib::runBoostVectorAnalysis;
23
24
26{
27 setDescription("BoostVector calibration algorithm");
28}
29
30
32static TObject* getBoostVectorObj(Vector3d vBoost, Matrix3d vBoostUnc, Matrix3d /*vBoostSpread*/)
33{
34 auto payload = new CollisionBoostVector();
35 payload->setBoost(toB2Vector3(vBoost), toTMatrixDSym(vBoostUnc));
36 TObject* obj = static_cast<TObject*>(payload);
37 return obj;
38}
39
40
41
42/* Main calibration method calling dedicated functions */
44{
45 TTree* tracks = getObjectPtr<TTree>("events").get();
46 return runCalibration(tracks, "CollisionBoostVector", getEvents,
47 runBoostVectorAnalysis, getBoostVectorObj,
49}
BoostVectorAlgorithm()
Constructor set the prefix to BoostVectorCollector.
TString m_lossFunctionOuter
Outer loss function (for calibration intervals of BoostVector spread parameters)
virtual EResult calibrate() override
Run algo on data.
TString m_lossFunctionInner
Inner loss function (for calibraion subintervals of mean BoostVector values)
Base class for calibration algorithms.
void setDescription(const std::string &description)
Set algorithm description (in constructor)
EResult
The result of calibration.
This class contains the measured average boost vector vec(beta) = (beta_x, beta_y,...
TMatrixDSym toTMatrixDSym(Eigen::MatrixXd mIn)
Function that converts Eigen symmetric matrix to ROOT matrix.
Definition: calibTools.h:44
CalibrationAlgorithm::EResult runCalibration(TTree *tracks, const std::string &calibName, Fun1 GetEvents, Fun2 calibAnalysis, std::function< TObject *(Eigen::VectorXd, Eigen::MatrixXd, Eigen::MatrixXd)> calibObjCreator, TString m_lossFunctionOuter, TString m_lossFunctionInner)
Run the the calibration over the whole event sample.
Definition: calibTools.h:428
B2Vector3D toB2Vector3(Eigen::VectorXd vIn)
Function that converts Eigen vector to ROOT vector.
Definition: calibTools.h:54
Abstract base class for different kinds of events.