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/* |
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* TofDedxHCut.h |
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* |
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* Created on: 5 apr 2011 |
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* Author: Nicola Mori |
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*/ |
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|
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/*! @file TofDedxHCut.h The TofDedxHCut.h class definition file. */ |
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|
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#ifndef TOFDEDXHCUT_H_ |
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#define TOFDEDXHCUT_H_ |
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|
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#include "../../PamCutBase/PamCutBase.h" |
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|
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/*! @brief Cutting a band dE/dx vs. Beta for hydrogen. |
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* This cut discards events where TOF dE/dx vs. Beta are outside the hydrogen "corridor". This corridor is currently |
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* defined by: |
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* |
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* dE/dx > _p[0] / (_p[1] * beta + _p[2]) + _p[3] + _p[4] * beta |
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* dE/dx < _p[5] / (_p[6] * beta + _p[7]) + _p[8] + _p[9] * beta |
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* |
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* where p[i] are calibration parameters. Currently, they are available for each single layer; the beta used is the beta[12] corresponding |
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* to the TOF standalone track or to the TRK physical track, depending on the value of the standAlone parameter of the constructor. The |
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* cut parameters have been obtained using the standalone beta. Currently, no test has been made to see if these parameters are good also |
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* for beta from TRK track. |
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* If the required combination of planes has no available calibration, the one for S21 will be used. Currently, the 9th reduction uses |
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* a dE/dx calibration which allow to use an (almost) unique set of parameters for all layers, but the possibility to define cut parameters |
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* for each layer is maintained for possible future refinements. |
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* Note that there's no currently available calibration for combinations of layers, so using mean release on many layers could potentially |
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* result in an undefined behavior, but given the almost constant cut parameters it should work as expected (however, THIS HAS NOT BEEN TESTED |
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* AND IS NOT GUARANTEED). |
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*/ |
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class TofDedxHCut: public PamCut { |
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|
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public: |
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/*! @brief Constructor. |
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* |
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* @param cutName The cut's name. |
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* @param layer The layer to use. Select it using values like #S11 (for single layers) or S11+S12 (for the mean of many layers). |
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* @param standAlone If true, the cut will use the standalone measure of beta; otherwise it will use the |
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* physical track. |
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* @param strict If true, a more strict cut will be applied (lower efficiency but also lower contamination). |
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*/ |
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TofDedxHCut(const char *cutName, unsigned int layer, bool standAlone = true, bool strict = false); |
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/*! @brief Destructor. */ |
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~TofDedxHCut() { |
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|
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} |
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|
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/*! @brief The dE/dx vs. beta helium check. |
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* |
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* @param event The event to analyze. |
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* @return #CUTOK if event is inside helium "corridor". |
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* @return 0 otherwise. |
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*/ |
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int Check(PamLevel2 *event); |
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|
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private: |
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|
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unsigned int _layer; |
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bool _standAlone; |
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const float *_p; |
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// Single layers standalone |
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static const float _S11_SA_params[10], _S12_SA_params[10], _S21_SA_params[10], _S22_SA_params[10], _S31_SA_params[10], |
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_S32_SA_params[10]; |
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// Single layers standalone, strict selection |
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static const float _S11_SA_params_strict[10], _S12_SA_params_strict[10], _S21_SA_params_strict[10], |
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_S22_SA_params_strict[10], _S31_SA_params_strict[10], _S32_SA_params_strict[10]; |
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}; |
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|
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#endif /* TOFDEDXHCUT_H_ */ |
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