BmnHodoResolution.h

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#ifndef BmnHodoResolution_H
#define BmnHodoResolution_H
 
#include "TRandom.h"
 
#include <cmath>
 
namespace BmnHodoResolution
{
 
struct Kernel
{
    double stochastic, constant;
 
    Kernel()
        : stochastic(0)
        , constant(0)
    {}
    Kernel(double stochastic_, double constant_)
        : stochastic(stochastic_)
        , constant(constant_)
    {}
 
    double sigma(double z2) const { return sqrt(stochastic * stochastic * z2 + constant * constant * z2 * z2); }
 
    double operator()(double z2) const { return gRandom->Gaus(z2, sigma(z2)); }
};
 
}   // namespace BmnHodoResolution
 
#endif   // BmnHodoResolution_H