In nuclear physics is frequently convenient to work in units of with
. Several useful constants are given here.
For example, mev gives 1 in units of
(the solution to the equation
). If you have a number in
, you can multiply by mev to get a number in units of
. Alternatively, mev is a number with units
. These can be combined, so that erg divided by sec is 1
in units of
.
Variables | |
const double | mev = 1.0/o2scl_const::hc_mev_fm |
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const double | kg = mev/1.782661731e-30 |
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const double | msun_per_km3 = gsl_mks::solar_mass/1.0e54*kg |
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const double | Kelvin = 8.617342e-11*mev |
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const double | joule = kg/gsl_mks::speed_of_light/gsl_mks::speed_of_light |
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const double | erg = kg/1.0e3/gsl_cgs::speed_of_light/gsl_cgs::speed_of_light |
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const double | sec = gsl_mks::speed_of_light*1.0e15 |
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Masses from Particle Physics Booklet | |
(see also D.E. Groom, et. al., Euro. Phys. J. C 15 (2000) 1.) | |
const double | mass_electron = 0.510998902/o2scl_const::hc_mev_fm |
Electron mass in ![]() | |
const double | mass_muon = 105.658357/o2scl_const::hc_mev_fm |
Muon mass in ![]() | |
const double | mass_amu = 931.494013/o2scl_const::hc_mev_fm |
Atomic mass unit in ![]() | |
const double | mass_neutron = 939.565/o2scl_const::hc_mev_fm |
Neutron mass in ![]() | |
const double | mass_proton = 938.272/o2scl_const::hc_mev_fm |
Proton mass in ![]() | |
const double | mass_lambda = 1115.683/o2scl_const::hc_mev_fm |
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const double | mass_sigmam = 1197.45/o2scl_const::hc_mev_fm |
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const double | mass_sigma = 1192.642/o2scl_const::hc_mev_fm |
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const double | mass_sigmap = 1189.37/o2scl_const::hc_mev_fm |
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const double | mass_cascadem = 1321.3/o2scl_const::hc_mev_fm |
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const double | mass_cascade = 1314.8/o2scl_const::hc_mev_fm |
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const double | mass_omega = 782.57/o2scl_const::hc_mev_fm |
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const double | mass_rho = 769.3/o2scl_const::hc_mev_fm |
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www.nist.gov | |
const double | mass_alpha = 3727.37905/o2scl_const::hc_mev_fm |
Alpha particle mass in ![]() |
const double mass_alpha = 3727.37905/o2scl_const::hc_mev_fm |
Alpha particle mass in .
This does not include the mass of the additional two electrons which are present in a helium atom.
Definition at line 1066 of file constants.h.