Constants.h

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// $Maintainer: Timo Sachsenberg$
// $Authors: Marc Sturm $
// --------------------------------------------------------------------------
 
#pragma once
 
#include <OpenMS/config.h>
#include <string>
 
namespace OpenMS
{
  namespace Constants
  {
 
    inline const double PI = 3.14159265358979323846;
 
    inline const double E = 2.718281828459045235;
 
    inline double EPSILON = 1e-6;
 
 
    inline const double ELEMENTARY_CHARGE = 1.60217738E-19; // C
 
    inline const double e0 = ELEMENTARY_CHARGE;
 
    inline const double ELECTRON_MASS = 9.1093897E-31; // kg
 
    inline const double ELECTRON_MASS_U = 1.0 / 1822.8885020477; // u
 
    inline const double PROTON_MASS = 1.6726230E-27; // kg
 
    inline const double PROTON_MASS_U = 1.0072764667710; // u
 
    inline const double C13C12_MASSDIFF_U = 1.0033548378; // u
 
    inline const double NEUTRON_MASS = 1.6749286E-27; // kg
 
    inline const double NEUTRON_MASS_U = 1.00866491566; // u
 
    inline const double AVOGADRO = 6.0221367E+23; // 1 / mol
 
    inline const double NA = AVOGADRO;
 
    inline const double MOL = AVOGADRO;
 
    inline const double BOLTZMANN = 1.380657E-23; // J / K
 
    inline const double k = BOLTZMANN;
 
    inline const double PLANCK = 6.6260754E-34; // J * sec
 
    inline const double h = PLANCK;
 
    inline const double GAS_CONSTANT = NA * k;
 
    inline const double R = GAS_CONSTANT;
 
    inline const double FARADAY = NA * e0;
 
    inline const double F = FARADAY;
 
    inline const double BOHR_RADIUS = 5.29177249E-11; // m
 
    inline const double a0 = BOHR_RADIUS;
 
    //  the following values from:
    //  P.W.Atkins: Physical Chemistry, 5th ed., Oxford University Press, 1995
 
    inline const double VACUUM_PERMITTIVITY = 8.85419E-12; // C^2 / (J * m)
 
    inline const double VACUUM_PERMEABILITY = (4 * PI * 1E-7); // J s^2 / (C^2 * m)
 
    inline const double SPEED_OF_LIGHT = 2.99792458E+8; // m / s
 
    inline const double c = SPEED_OF_LIGHT;
 
    inline const double GRAVITATIONAL_CONSTANT = 6.67259E-11; // N m^2 / kg^2
 
    inline const double FINE_STRUCTURE_CONSTANT = 7.29735E-3; // 1
 
 
    inline const double DEG_PER_RAD = 57.2957795130823209;
 
    inline const double RAD_PER_DEG = 0.0174532925199432957;
 
    inline const double MM_PER_INCH = 25.4;
 
    inline const double M_PER_FOOT = 3.048;
 
    inline const double JOULE_PER_CAL = 4.184;
 
    inline const double CAL_PER_JOULE = (1 / 4.184);
 
    namespace UserParam
    {
      inline const std::string CONCAT_PEPTIDE = "concatenated_peptides";
 
      inline const std::string   LOCALIZED_MODIFICATIONS_USERPARAM = "localized_modifications";
 
      inline const std::string   MERGED_CHROMATOGRAM_MZS = "merged_chromatogram_mzs";
 
      inline const std::string   PRECURSOR_ERROR_PPM_USERPARAM = "precursor_mz_error_ppm";
 
      inline const std::string   FRAGMENT_ERROR_MEDIAN_PPM_USERPARAM = "fragment_mz_error_median_ppm";
 
 
      inline const std::string   FRAGMENT_ERROR_PPM_USERPARAM = "fragment_mass_error_ppm";
 
      inline const std::string   FRAGMENT_ERROR_DA_USERPARAM = "fragment_mass_error_da";
 
      inline const std::string   FRAGMENT_ANNOTATION_USERPARAM = "fragment_annotation";
 
      inline const std::string   PSM_EXPLAINED_ION_CURRENT_USERPARAM = "PSM_explained_ion_current";
 
      // User parameter name for the fraction of prefix ions that have been matched 
      inline const std::string MATCHED_PREFIX_IONS_FRACTION = "matched_prefix_ions_fraction";
 
      // User parameter name for the fraction of suffix ions that have been matched 
      inline const std::string MATCHED_SUFFIX_IONS_FRACTION = "matched_suffix_ions_fraction";
 
      inline const std::string   SPECTRUM_REFERENCE = "spectrum_reference";
 
      inline const std::string   TARGET_DECOY = "target_decoy";
 
      inline const std::string   DELTA_SCORE = "delta_score";
 
      inline const std::string   ISOTOPE_ERROR = "isotope_error";
 
      // Cross-Linking Mass Spectrometry user parameters
      inline const std::string   OPENPEPXL_SCORE = "OpenPepXL:score";
 
      inline const std::string   OPENPEPXL_BETA_SEQUENCE = "sequence_beta";
 
      inline const std::string   OPENPEPXL_BETA_ACCESSIONS = "accessions_beta";
 
      inline const std::string   OPENPEPXL_XL_POS1 = "xl_pos1";
 
      inline const std::string   OPENPEPXL_XL_POS2 = "xl_pos2";
 
      inline const std::string   OPENPEPXL_XL_POS1_PROT = "xl_pos1_protein";
 
      inline const std::string   OPENPEPXL_XL_POS2_PROT = "xl_pos2_protein";
 
      inline const std::string   OPENPEPXL_XL_TYPE = "xl_type";
 
      inline const std::string   OPENPEPXL_XL_RANK = "xl_rank";
 
      inline const std::string   OPENPEPXL_XL_MOD = "xl_mod";
 
      inline const std::string   OPENPEPXL_XL_MASS = "xl_mass";
 
      inline const std::string   OPENPEPXL_XL_TERM_SPEC_ALPHA = "xl_term_spec_alpha";
 
      inline const std::string   OPENPEPXL_XL_TERM_SPEC_BETA = "xl_term_spec_beta";
 
      inline const std::string   OPENPEPXL_HEAVY_SPEC_RT = "spec_heavy_RT";
 
      inline const std::string   OPENPEPXL_HEAVY_SPEC_MZ = "spec_heavy_MZ";
 
      inline const std::string   OPENPEPXL_HEAVY_SPEC_REF = "spectrum_reference_heavy";
 
      inline const std::string   OPENPEPXL_TARGET_DECOY_ALPHA = "xl_target_decoy_alpha";
 
      inline const std::string   OPENPEPXL_TARGET_DECOY_BETA = "xl_target_decoy_beta";
 
      inline const std::string   OPENPEPXL_BETA_PEPEV_PRE = "BetaPepEv:pre";
 
      inline const std::string   OPENPEPXL_BETA_PEPEV_POST = "BetaPepEv:post";
 
      inline const std::string   OPENPEPXL_BETA_PEPEV_START = "BetaPepEv:start";
 
      inline const std::string   OPENPEPXL_BETA_PEPEV_END = "BetaPepEv:end";
 
      inline const std::string   XFDR_FDR = "XFDR:FDR";
    }
 
  }
}