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Merge pull request #51 from soleti/livetime_dataproduct
Added CosmicLivetime data product; Clean-up of CORSIKA code
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,78 @@ | ||
| #ifndef MCDataProducts_CosmicLivetime_hh | ||
| #define MCDataProducts_CosmicLivetime_hh | ||
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| // Original author Stefano Roberto Soleti | ||
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| // C++ includes | ||
| #include <iostream> | ||
| #include <vector> | ||
| #include <math.h> | ||
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| // Mu2e includes | ||
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| namespace mu2e { | ||
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| struct CosmicLivetime{ | ||
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| public: | ||
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| CosmicLivetime(): | ||
| _primaries(0), | ||
| _area(0), | ||
| _lowE(0), | ||
| _highE(0), | ||
| _fluxConstant(0) { | ||
| } | ||
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| CosmicLivetime( unsigned int primaries, | ||
| float area, | ||
| float lowE, | ||
| float highE, | ||
| float fluxConstant ): | ||
| _primaries(primaries), | ||
| _area(area), | ||
| _lowE(lowE), | ||
| _highE(highE), | ||
| _fluxConstant(fluxConstant) { | ||
| const float eslope = -2.7; | ||
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| const float EiToOneMinusGamma = pow(_lowE, 1 + eslope); | ||
| const float EfToOneMinusGamma = pow(_highE, 1 + eslope); | ||
| // http://pdg.lbl.gov/2018/reviews/rpp2018-rev-cosmic-rays.pdf eq. 29.2 | ||
| _livetime = _primaries / (M_PI * _area * _fluxConstant * (EfToOneMinusGamma - EiToOneMinusGamma) / (1. + eslope)); | ||
| } | ||
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| // Accessors | ||
| unsigned int primaries() const { return _primaries; } | ||
| float area() const { return _area; } | ||
| float lowE() const { return _lowE;} | ||
| float highE() const { return _highE; } | ||
| float fluxConstant() const { return _fluxConstant; } | ||
| float liveTime() const { return _livetime; } | ||
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| // Accept compiler generated versions of d'tor, copy c'tor, assignment operator. | ||
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| // Print contents of the object. | ||
| void print( std::ostream& ost = std::cout, bool doEndl = true ) const; | ||
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| private: | ||
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| unsigned int _primaries; | ||
| float _area; // m2 | ||
| float _lowE; // (GeV) | ||
| float _highE; // (GeV) | ||
| float _fluxConstant; | ||
| float _livetime; // s | ||
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| }; | ||
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| inline std::ostream& operator<<( std::ostream& ost, | ||
| CosmicLivetime const& lt){ | ||
| lt.print(ost,false); | ||
| return ost; | ||
| } | ||
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| } // namespace mu2e | ||
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| #endif /* MCDataProducts_CosmicLivetime_hh */ |
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