SPS_SABRE_EventBuilder/include/MassLookup.h

36 lines
759 B
C++

/*
MassLookup.h
Generates a map for isotopic masses using AMDC data; subtracts away
electron mass from the atomic mass by default. Creates a static global instance
of this map (MASS) for use throughout code it is included into.
Written by G.W. McCann Aug. 2020
*/
#ifndef MASS_LOOKUP_H
#define MASS_LOOKUP_H
class MassLookup
{
public:
MassLookup();
~MassLookup();
double FindMass(int Z, int A);
std::string FindSymbol(int Z, int A);
private:
std::unordered_map<std::string, double> massTable;
std::unordered_map<int, std::string> elementTable;
//constants
static constexpr double u_to_mev = 931.4940954;
static constexpr double electron_mass = 0.000548579909;
};
//static instance for use throught program
static MassLookup MASS;
#endif