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/ constants / codata.py
# Compiled by Charles Harris, dated October 3, 2002
# updated to 2002 values by BasSw, 2006
# Updated to 2006 values by Vincent Davis June 2010
# Updated to 2014 values by Joseph Booker, 2015
"""
Fundamental Physical Constants
------------------------------
These constants are taken from CODATA Recommended Values of the Fundamental
Physical Constants 2014.
Object
------
physical_constants : dict
A dictionary containing physical constants. Keys are the names of physical
constants, values are tuples (value, units, precision).
Functions
---------
value(key):
Returns the value of the physical constant(key).
unit(key):
Returns the units of the physical constant(key).
precision(key):
Returns the relative precision of the physical constant(key).
find(sub):
Prints or returns list of keys containing the string sub, default is all.
Source
------
The values of the constants provided at this site are recommended for
international use by CODATA and are the latest available. Termed the "2014
CODATA recommended values," they are generally recognized worldwide for use in
all fields of science and technology. The values became available on 25 June
2015 and replaced the 2010 CODATA set. They are based on all of the data
available through 31 December 2014. The 2014 adjustment was carried out under
the auspices of the CODATA Task Group on Fundamental Constants. Also available
is an introduction to the constants for non-experts at
https://physics.nist.gov/cuu/Constants/introduction.html
References
----------
Theoretical and experimental publications relevant to the fundamental constants
and closely related precision measurements published since the mid 1980s, but
also including many older papers of particular interest, some of which date
back to the 1800s. To search bibliography visit
https://physics.nist.gov/cuu/Constants/
"""
from __future__ import division, print_function, absolute_import
import warnings
from math import pi, sqrt
__all__ = ['physical_constants', 'value', 'unit', 'precision', 'find',
'ConstantWarning']
"""
Source: https://physics.nist.gov/cuu/Constants/
The values of the constants provided at the above site are recommended for
international use by CODATA and are the latest available. Termed the "2006
CODATA recommended values", they are generally recognized worldwide for use
in all fields of science and technology. The values became available in March
2007 and replaced the 2002 CODATA set. They are based on all of the data
available through 31 December 2006. The 2006 adjustment was carried out under
the auspices of the CODATA Task Group on Fundamental Constants.
"""
#
# Source: https://physics.nist.gov/cuu/Constants/
#
# Quantity Value Uncertainty Unit
# ---------------------------------------------------- --------------------- -------------------- -------------
txt2002 = """\
Wien displacement law constant 2.897 7685e-3 0.000 0051e-3 m K
atomic unit of 1st hyperpolarizablity 3.206 361 51e-53 0.000 000 28e-53 C^3 m^3 J^-2
atomic unit of 2nd hyperpolarizablity 6.235 3808e-65 0.000 0011e-65 C^4 m^4 J^-3
atomic unit of electric dipole moment 8.478 353 09e-30 0.000 000 73e-30 C m
atomic unit of electric polarizablity 1.648 777 274e-41 0.000 000 016e-41 C^2 m^2 J^-1
atomic unit of electric quadrupole moment 4.486 551 24e-40 0.000 000 39e-40 C m^2
atomic unit of magn. dipole moment 1.854 801 90e-23 0.000 000 16e-23 J T^-1
atomic unit of magn. flux density 2.350 517 42e5 0.000 000 20e5 T
deuteron magn. moment 0.433 073 482e-26 0.000 000 038e-26 J T^-1
deuteron magn. moment to Bohr magneton ratio 0.466 975 4567e-3 0.000 000 0050e-3
deuteron magn. moment to nuclear magneton ratio 0.857 438 2329 0.000 000 0092
deuteron-electron magn. moment ratio -4.664 345 548e-4 0.000 000 050e-4
deuteron-proton magn. moment ratio 0.307 012 2084 0.000 000 0045
deuteron-neutron magn. moment ratio -0.448 206 52 0.000 000 11
electron gyromagn. ratio 1.760 859 74e11 0.000 000 15e11 s^-1 T^-1
electron gyromagn. ratio over 2 pi 28 024.9532 0.0024 MHz T^-1
electron magn. moment -928.476 412e-26 0.000 080e-26 J T^-1
electron magn. moment to Bohr magneton ratio -1.001 159 652 1859 0.000 000 000 0038
electron magn. moment to nuclear magneton ratio -1838.281 971 07 0.000 000 85
electron magn. moment anomaly 1.159 652 1859e-3 0.000 000 0038e-3
electron to shielded proton magn. moment ratio -658.227 5956 0.000 0071
electron to shielded helion magn. moment ratio 864.058 255 0.000 010
electron-deuteron magn. moment ratio -2143.923 493 0.000 023
electron-muon magn. moment ratio 206.766 9894 0.000 0054
electron-neutron magn. moment ratio 960.920 50 0.000 23
electron-proton magn. moment ratio -658.210 6862 0.000 0066
magn. constant 12.566 370 614...e-7 0 N A^-2
magn. flux quantum 2.067 833 72e-15 0.000 000 18e-15 Wb
muon magn. moment -4.490 447 99e-26 0.000 000 40e-26 J T^-1
muon magn. moment to Bohr magneton ratio -4.841 970 45e-3 0.000 000 13e-3
muon magn. moment to nuclear magneton ratio -8.890 596 98 0.000 000 23
muon-proton magn. moment ratio -3.183 345 118 0.000 000 089
neutron gyromagn. ratio 1.832 471 83e8 0.000 000 46e8 s^-1 T^-1
neutron gyromagn. ratio over 2 pi 29.164 6950 0.000 0073 MHz T^-1
neutron magn. moment -0.966 236 45e-26 0.000 000 24e-26 J T^-1
neutron magn. moment to Bohr magneton ratio -1.041 875 63e-3 0.000 000 25e-3
neutron magn. moment to nuclear magneton ratio -1.913 042 73 0.000 000 45
neutron to shielded proton magn. moment ratio -0.684 996 94 0.000 000 16
neutron-electron magn. moment ratio 1.040 668 82e-3 0.000 000 25e-3
neutron-proton magn. moment ratio -0.684 979 34 0.000 000 16
proton gyromagn. ratio 2.675 222 05e8 0.000 000 23e8 s^-1 T^-1
proton gyromagn. ratio over 2 pi 42.577 4813 0.000 0037 MHz T^-1
proton magn. moment 1.410 606 71e-26 0.000 000 12e-26 J T^-1
proton magn. moment to Bohr magneton ratio 1.521 032 206e-3 0.000 000 015e-3
proton magn. moment to nuclear magneton ratio 2.792 847 351 0.000 000 028
proton magn. shielding correction 25.689e-6 0.015e-6
proton-neutron magn. moment ratio -1.459 898 05 0.000 000 34
shielded helion gyromagn. ratio 2.037 894 70e8 0.000 000 18e8 s^-1 T^-1
shielded helion gyromagn. ratio over 2 pi 32.434 1015 0.000 0028 MHz T^-1
shielded helion magn. moment -1.074 553 024e-26 0.000 000 093e-26 J T^-1
shielded helion magn. moment to Bohr magneton ratio -1.158 671 474e-3 0.000 000 014e-3
shielded helion magn. moment to nuclear magneton ratio -2.127 497 723 0.000 000 025
shielded helion to proton magn. moment ratio -0.761 766 562 0.000 000 012
shielded helion to shielded proton magn. moment ratio -0.761 786 1313 0.000 000 0033
shielded helion gyromagn. ratio 2.037 894 70e8 0.000 000 18e8 s^-1 T^-1
shielded helion gyromagn. ratio over 2 pi 32.434 1015 0.000 0028 MHz T^-1
shielded proton magn. moment 1.410 570 47e-26 0.000 000 12e-26 J T^-1
shielded proton magn. moment to Bohr magneton ratio 1.520 993 132e-3 0.000 000 016e-3
shielded proton magn. moment to nuclear magneton ratio 2.792 775 604 0.000 000 030
{220} lattice spacing of silicon 192.015 5965e-12 0.000 0070e-12 m"""
txt2006 = """\
lattice spacing of silicon 192.015 5762 e-12 0.000 0050 e-12 m
alpha particle-electron mass ratio 7294.299 5365 0.000 0031
alpha particle mass 6.644 656 20 e-27 0.000 000 33 e-27 kg
alpha particle mass energy equivalent 5.971 919 17 e-10 0.000 000 30 e-10 J
alpha particle mass energy equivalent in MeV 3727.379 109 0.000 093 MeV
alpha particle mass in u 4.001 506 179 127 0.000 000 000 062 u
alpha particle molar mass 4.001 506 179 127 e-3 0.000 000 000 062 e-3 kg mol^-1
alpha particle-proton mass ratio 3.972 599 689 51 0.000 000 000 41
Angstrom star 1.000 014 98 e-10 0.000 000 90 e-10 m
atomic mass constant 1.660 538 782 e-27 0.000 000 083 e-27 kg
atomic mass constant energy equivalent 1.492 417 830 e-10 0.000 000 074 e-10 J
atomic mass constant energy equivalent in MeV 931.494 028 0.000 023 MeV
atomic mass unit-electron volt relationship 931.494 028 e6 0.000 023 e6 eV
atomic mass unit-hartree relationship 3.423 177 7149 e7 0.000 000 0049 e7 E_h
atomic mass unit-hertz relationship 2.252 342 7369 e23 0.000 000 0032 e23 Hz
atomic mass unit-inverse meter relationship 7.513 006 671 e14 0.000 000 011 e14 m^-1
atomic mass unit-joule relationship 1.492 417 830 e-10 0.000 000 074 e-10 J
atomic mass unit-kelvin relationship 1.080 9527 e13 0.000 0019 e13 K
atomic mass unit-kilogram relationship 1.660 538 782 e-27 0.000 000 083 e-27 kg
atomic unit of 1st hyperpolarizability 3.206 361 533 e-53 0.000 000 081 e-53 C^3 m^3 J^-2
atomic unit of 2nd hyperpolarizability 6.235 380 95 e-65 0.000 000 31 e-65 C^4 m^4 J^-3
atomic unit of action 1.054 571 628 e-34 0.000 000 053 e-34 J s
atomic unit of charge 1.602 176 487 e-19 0.000 000 040 e-19 C
atomic unit of charge density 1.081 202 300 e12 0.000 000 027 e12 C m^-3
atomic unit of current 6.623 617 63 e-3 0.000 000 17 e-3 A
atomic unit of electric dipole mom. 8.478 352 81 e-30 0.000 000 21 e-30 C m
atomic unit of electric field 5.142 206 32 e11 0.000 000 13 e11 V m^-1
atomic unit of electric field gradient 9.717 361 66 e21 0.000 000 24 e21 V m^-2
atomic unit of electric polarizability 1.648 777 2536 e-41 0.000 000 0034 e-41 C^2 m^2 J^-1
atomic unit of electric potential 27.211 383 86 0.000 000 68 V
atomic unit of electric quadrupole mom. 4.486 551 07 e-40 0.000 000 11 e-40 C m^2
atomic unit of energy 4.359 743 94 e-18 0.000 000 22 e-18 J
atomic unit of force 8.238 722 06 e-8 0.000 000 41 e-8 N
atomic unit of length 0.529 177 208 59 e-10 0.000 000 000 36 e-10 m
atomic unit of mag. dipole mom. 1.854 801 830 e-23 0.000 000 046 e-23 J T^-1
atomic unit of mag. flux density 2.350 517 382 e5 0.000 000 059 e5 T
atomic unit of magnetizability 7.891 036 433 e-29 0.000 000 027 e-29 J T^-2
atomic unit of mass 9.109 382 15 e-31 0.000 000 45 e-31 kg
atomic unit of momentum 1.992 851 565 e-24 0.000 000 099 e-24 kg m s^-1
atomic unit of permittivity 1.112 650 056... e-10 (exact) F m^-1
atomic unit of time 2.418 884 326 505 e-17 0.000 000 000 016 e-17 s
atomic unit of velocity 2.187 691 2541 e6 0.000 000 0015 e6 m s^-1
Avogadro constant 6.022 141 79 e23 0.000 000 30 e23 mol^-1
Bohr magneton 927.400 915 e-26 0.000 023 e-26 J T^-1
Bohr magneton in eV/T 5.788 381 7555 e-5 0.000 000 0079 e-5 eV T^-1
Bohr magneton in Hz/T 13.996 246 04 e9 0.000 000 35 e9 Hz T^-1
Bohr magneton in inverse meters per tesla 46.686 4515 0.000 0012 m^-1 T^-1
Bohr magneton in K/T 0.671 7131 0.000 0012 K T^-1
Bohr radius 0.529 177 208 59 e-10 0.000 000 000 36 e-10 m
Boltzmann constant 1.380 6504 e-23 0.000 0024 e-23 J K^-1
Boltzmann constant in eV/K 8.617 343 e-5 0.000 015 e-5 eV K^-1
Boltzmann constant in Hz/K 2.083 6644 e10 0.000 0036 e10 Hz K^-1
Boltzmann constant in inverse meters per kelvin 69.503 56 0.000 12 m^-1 K^-1
characteristic impedance of vacuum 376.730 313 461... (exact) ohm
classical electron radius 2.817 940 2894 e-15 0.000 000 0058 e-15 m
Compton wavelength 2.426 310 2175 e-12 0.000 000 0033 e-12 m
Compton wavelength over 2 pi 386.159 264 59 e-15 0.000 000 53 e-15 m
conductance quantum 7.748 091 7004 e-5 0.000 000 0053 e-5 S
conventional value of Josephson constant 483 597.9 e9 (exact) Hz V^-1
conventional value of von Klitzing constant 25 812.807 (exact) ohm
Cu x unit 1.002 076 99 e-13 0.000 000 28 e-13 m
deuteron-electron mag. mom. ratio -4.664 345 537 e-4 0.000 000 039 e-4
deuteron-electron mass ratio 3670.482 9654 0.000 0016
deuteron g factor 0.857 438 2308 0.000 000 0072
deuteron mag. mom. 0.433 073 465 e-26 0.000 000 011 e-26 J T^-1
deuteron mag. mom. to Bohr magneton ratio 0.466 975 4556 e-3 0.000 000 0039 e-3
deuteron mag. mom. to nuclear magneton ratio 0.857 438 2308 0.000 000 0072
deuteron mass 3.343 583 20 e-27 0.000 000 17 e-27 kg
deuteron mass energy equivalent 3.005 062 72 e-10 0.000 000 15 e-10 J
deuteron mass energy equivalent in MeV 1875.612 793 0.000 047 MeV
deuteron mass in u 2.013 553 212 724 0.000 000 000 078 u
deuteron molar mass 2.013 553 212 724 e-3 0.000 000 000 078 e-3 kg mol^-1
deuteron-neutron mag. mom. ratio -0.448 206 52 0.000 000 11
deuteron-proton mag. mom. ratio 0.307 012 2070 0.000 000 0024
deuteron-proton mass ratio 1.999 007 501 08 0.000 000 000 22
deuteron rms charge radius 2.1402 e-15 0.0028 e-15 m
electric constant 8.854 187 817... e-12 (exact) F m^-1
electron charge to mass quotient -1.758 820 150 e11 0.000 000 044 e11 C kg^-1
electron-deuteron mag. mom. ratio -2143.923 498 0.000 018
electron-deuteron mass ratio 2.724 437 1093 e-4 0.000 000 0012 e-4
electron g factor -2.002 319 304 3622 0.000 000 000 0015
electron gyromag. ratio 1.760 859 770 e11 0.000 000 044 e11 s^-1 T^-1
electron gyromag. ratio over 2 pi 28 024.953 64 0.000 70 MHz T^-1
electron mag. mom. -928.476 377 e-26 0.000 023 e-26 J T^-1
electron mag. mom. anomaly 1.159 652 181 11 e-3 0.000 000 000 74 e-3
electron mag. mom. to Bohr magneton ratio -1.001 159 652 181 11 0.000 000 000 000 74
electron mag. mom. to nuclear magneton ratio -1838.281 970 92 0.000 000 80
electron mass 9.109 382 15 e-31 0.000 000 45 e-31 kg
electron mass energy equivalent 8.187 104 38 e-14 0.000 000 41 e-14 J
electron mass energy equivalent in MeV 0.510 998 910 0.000 000 013 MeV
electron mass in u 5.485 799 0943 e-4 0.000 000 0023 e-4 u
electron molar mass 5.485 799 0943 e-7 0.000 000 0023 e-7 kg mol^-1
electron-muon mag. mom. ratio 206.766 9877 0.000 0052
electron-muon mass ratio 4.836 331 71 e-3 0.000 000 12 e-3
electron-neutron mag. mom. ratio 960.920 50 0.000 23
electron-neutron mass ratio 5.438 673 4459 e-4 0.000 000 0033 e-4
electron-proton mag. mom. ratio -658.210 6848 0.000 0054
electron-proton mass ratio 5.446 170 2177 e-4 0.000 000 0024 e-4
electron-tau mass ratio 2.875 64 e-4 0.000 47 e-4
electron to alpha particle mass ratio 1.370 933 555 70 e-4 0.000 000 000 58 e-4
electron to shielded helion mag. mom. ratio 864.058 257 0.000 010
electron to shielded proton mag. mom. ratio -658.227 5971 0.000 0072
electron volt 1.602 176 487 e-19 0.000 000 040 e-19 J
electron volt-atomic mass unit relationship 1.073 544 188 e-9 0.000 000 027 e-9 u
electron volt-hartree relationship 3.674 932 540 e-2 0.000 000 092 e-2 E_h
electron volt-hertz relationship 2.417 989 454 e14 0.000 000 060 e14 Hz
electron volt-inverse meter relationship 8.065 544 65 e5 0.000 000 20 e5 m^-1
electron volt-joule relationship 1.602 176 487 e-19 0.000 000 040 e-19 J
electron volt-kelvin relationship 1.160 4505 e4 0.000 0020 e4 K
electron volt-kilogram relationship 1.782 661 758 e-36 0.000 000 044 e-36 kg
elementary charge 1.602 176 487 e-19 0.000 000 040 e-19 C
elementary charge over h 2.417 989 454 e14 0.000 000 060 e14 A J^-1
Faraday constant 96 485.3399 0.0024 C mol^-1
Faraday constant for conventional electric current 96 485.3401 0.0048 C_90 mol^-1
Fermi coupling constant 1.166 37 e-5 0.000 01 e-5 GeV^-2
fine-structure constant 7.297 352 5376 e-3 0.000 000 0050 e-3
first radiation constant 3.741 771 18 e-16 0.000 000 19 e-16 W m^2
first radiation constant for spectral radiance 1.191 042 759 e-16 0.000 000 059 e-16 W m^2 sr^-1
hartree-atomic mass unit relationship 2.921 262 2986 e-8 0.000 000 0042 e-8 u
hartree-electron volt relationship 27.211 383 86 0.000 000 68 eV
Hartree energy 4.359 743 94 e-18 0.000 000 22 e-18 J
Hartree energy in eV 27.211 383 86 0.000 000 68 eV
hartree-hertz relationship 6.579 683 920 722 e15 0.000 000 000 044 e15 Hz
hartree-inverse meter relationship 2.194 746 313 705 e7 0.000 000 000 015 e7 m^-1
hartree-joule relationship 4.359 743 94 e-18 0.000 000 22 e-18 J
hartree-kelvin relationship 3.157 7465 e5 0.000 0055 e5 K
hartree-kilogram relationship 4.850 869 34 e-35 0.000 000 24 e-35 kg
helion-electron mass ratio 5495.885 2765 0.000 0052
helion mass 5.006 411 92 e-27 0.000 000 25 e-27 kg
helion mass energy equivalent 4.499 538 64 e-10 0.000 000 22 e-10 J
helion mass energy equivalent in MeV 2808.391 383 0.000 070 MeV
helion mass in u 3.014 932 2473 0.000 000 0026 u
helion molar mass 3.014 932 2473 e-3 0.000 000 0026 e-3 kg mol^-1
helion-proton mass ratio 2.993 152 6713 0.000 000 0026
hertz-atomic mass unit relationship 4.439 821 6294 e-24 0.000 000 0064 e-24 u
hertz-electron volt relationship 4.135 667 33 e-15 0.000 000 10 e-15 eV
hertz-hartree relationship 1.519 829 846 006 e-16 0.000 000 000010e-16 E_h
hertz-inverse meter relationship 3.335 640 951... e-9 (exact) m^-1
hertz-joule relationship 6.626 068 96 e-34 0.000 000 33 e-34 J
hertz-kelvin relationship 4.799 2374 e-11 0.000 0084 e-11 K
hertz-kilogram relationship 7.372 496 00 e-51 0.000 000 37 e-51 kg
inverse fine-structure constant 137.035 999 679 0.000 000 094
inverse meter-atomic mass unit relationship 1.331 025 0394 e-15 0.000 000 0019 e-15 u
inverse meter-electron volt relationship 1.239 841 875 e-6 0.000 000 031 e-6 eV
inverse meter-hartree relationship 4.556 335 252 760 e-8 0.000 000 000 030 e-8 E_h
inverse meter-hertz relationship 299 792 458 (exact) Hz
inverse meter-joule relationship 1.986 445 501 e-25 0.000 000 099 e-25 J
inverse meter-kelvin relationship 1.438 7752 e-2 0.000 0025 e-2 K
inverse meter-kilogram relationship 2.210 218 70 e-42 0.000 000 11 e-42 kg
inverse of conductance quantum 12 906.403 7787 0.000 0088 ohm
Josephson constant 483 597.891 e9 0.012 e9 Hz V^-1
joule-atomic mass unit relationship 6.700 536 41 e9 0.000 000 33 e9 u
joule-electron volt relationship 6.241 509 65 e18 0.000 000 16 e18 eV
joule-hartree relationship 2.293 712 69 e17 0.000 000 11 e17 E_h
joule-hertz relationship 1.509 190 450 e33 0.000 000 075 e33 Hz
joule-inverse meter relationship 5.034 117 47 e24 0.000 000 25 e24 m^-1
joule-kelvin relationship 7.242 963 e22 0.000 013 e22 K
joule-kilogram relationship 1.112 650 056... e-17 (exact) kg
kelvin-atomic mass unit relationship 9.251 098 e-14 0.000 016 e-14 u
kelvin-electron volt relationship 8.617 343 e-5 0.000 015 e-5 eV
kelvin-hartree relationship 3.166 8153 e-6 0.000 0055 e-6 E_h
kelvin-hertz relationship 2.083 6644 e10 0.000 0036 e10 Hz
kelvin-inverse meter relationship 69.503 56 0.000 12 m^-1
kelvin-joule relationship 1.380 6504 e-23 0.000 0024 e-23 J
kelvin-kilogram relationship 1.536 1807 e-40 0.000 0027 e-40 kg
kilogram-atomic mass unit relationship 6.022 141 79 e26 0.000 000 30 e26 u
kilogram-electron volt relationship 5.609 589 12 e35 0.000 000 14 e35 eV
kilogram-hartree relationship 2.061 486 16 e34 0.000 000 10 e34 E_h
kilogram-hertz relationship 1.356 392 733 e50 0.000 000 068 e50 Hz
kilogram-inverse meter relationship 4.524 439 15 e41 0.000 000 23 e41 m^-1
kilogram-joule relationship 8.987 551 787... e16 (exact) J
kilogram-kelvin relationship 6.509 651 e39 0.000 011 e39 K
lattice parameter of silicon 543.102 064 e-12 0.000 014 e-12 m
Loschmidt constant (273.15 K, 101.325 kPa) 2.686 7774 e25 0.000 0047 e25 m^-3
mag. constant 12.566 370 614... e-7 (exact) N A^-2
mag. flux quantum 2.067 833 667 e-15 0.000 000 052 e-15 Wb
molar gas constant 8.314 472 0.000 015 J mol^-1 K^-1
molar mass constant 1 e-3 (exact) kg mol^-1
molar mass of carbon-12 12 e-3 (exact) kg mol^-1
molar Planck constant 3.990 312 6821 e-10 0.000 000 0057 e-10 J s mol^-1
molar Planck constant times c 0.119 626 564 72 0.000 000 000 17 J m mol^-1
molar volume of ideal gas (273.15 K, 100 kPa) 22.710 981 e-3 0.000 040 e-3 m^3 mol^-1
molar volume of ideal gas (273.15 K, 101.325 kPa) 22.413 996 e-3 0.000 039 e-3 m^3 mol^-1
molar volume of silicon 12.058 8349 e-6 0.000 0011 e-6 m^3 mol^-1
Mo x unit 1.002 099 55 e-13 0.000 000 53 e-13 m
muon Compton wavelength 11.734 441 04 e-15 0.000 000 30 e-15 m
muon Compton wavelength over 2 pi 1.867 594 295 e-15 0.000 000 047 e-15 m
muon-electron mass ratio 206.768 2823 0.000 0052
muon g factor -2.002 331 8414 0.000 000 0012
muon mag. mom. -4.490 447 86 e-26 0.000 000 16 e-26 J T^-1
muon mag. mom. anomaly 1.165 920 69 e-3 0.000 000 60 e-3
muon mag. mom. to Bohr magneton ratio -4.841 970 49 e-3 0.000 000 12 e-3
muon mag. mom. to nuclear magneton ratio -8.890 597 05 0.000 000 23
muon mass 1.883 531 30 e-28 0.000 000 11 e-28 kg
muon mass energy equivalent 1.692 833 510 e-11 0.000 000 095 e-11 J
muon mass energy equivalent in MeV 105.658 3668 0.000 0038 MeV
muon mass in u 0.113 428 9256 0.000 000 0029 u
muon molar mass 0.113 428 9256 e-3 0.000 000 0029 e-3 kg mol^-1
muon-neutron mass ratio 0.112 454 5167 0.000 000 0029
muon-proton mag. mom. ratio -3.183 345 137 0.000 000 085
muon-proton mass ratio 0.112 609 5261 0.000 000 0029
muon-tau mass ratio 5.945 92 e-2 0.000 97 e-2
natural unit of action 1.054 571 628 e-34 0.000 000 053 e-34 J s
natural unit of action in eV s 6.582 118 99 e-16 0.000 000 16 e-16 eV s
natural unit of energy 8.187 104 38 e-14 0.000 000 41 e-14 J