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44 lines
1.8 KiB
44 lines
1.8 KiB
/**
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* @file bu2kstarmumu_loader.hh
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* @author Christoph Langenbruch, Renata Kopecna
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* @date 2009-03-18
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*
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*/
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#ifndef BU2KSTARMUMU_LOADER_H
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#define BU2KSTARMUMU_LOADER_H
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#include "TLorentzVector.h"
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namespace fcnc {
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class options;
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class event;
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///class that implements the ability to load the Bs -> JPsi Phi signal decay from Zoo-ntuple root files.
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class bu2kstarmumu_loader {
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public:
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///constructor
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bu2kstarmumu_loader(options* o):
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opts(o) {};
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///Read events from decaytree tuple
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std::vector<event> read_decaytree_tuple(std::string filename, std::string treename, bool mctruth=false, int nevents=1000000, int syst_variation=-1);
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std::vector<event> read_full_tuple(int year, std::string filename, std::string treename, bool isMC = false, bool mctruth=false, bool genLevelMC = false, int nevents=1000000);
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void test_angles(std::string filename, std::string treename, bool mctruth=false, int nevents=1000000);
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///calculate decay angles according to theory convention http://arxiv.org/abs/0805.2525
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void theory_angles(const TLorentzVector& muplus, const TLorentzVector& muminus, const TLorentzVector& kaon, const TLorentzVector& pion, double& costhetal, double& costhetak, double& phi);
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///calculate decay angles according to lhcb convention http://arxiv.org/abs/1304.6325
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void lhcb_angles(bool bplus, const TLorentzVector& muplus, const TLorentzVector& muminus, const TLorentzVector& kaon, const TLorentzVector& pion, double& costhetal, double& costhetak, double& phi);
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void hd_angles(bool bplus, const TLorentzVector& muplus, const TLorentzVector& muminus, const TLorentzVector& kaon, const TLorentzVector& pion, double& costhetal_lhs, double& costhetal_rhs, double& costhetak_lhs, double& costhetak_rhs, double& phi);
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private:
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///pointer to options
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options* opts;
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};
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}
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#endif
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