Constants. More...
Variables | |
const double | yotta =1e24 |
const double | zetta =1e21 |
const double | exa =1e18 |
const double | peta =1e15 |
const double | tera =1e12 |
const double | giga =1e9 |
const double | mega =1e6 |
const double | kilo =1e3 |
const double | milli =1e-3 |
const double | micro =1e-6 |
const double | nano =1e-9 |
const double | pico =1e-12 |
const double | femto =1e-15 |
const double | atto =1e-18 |
const double | zepto =1e-21 |
const double | yocto =1e-24 |
const double | fine_structure =7.2973525698e-3 |
Fine structure constant (CODATA 2010 value) | |
const double | avogadro =6.02214129e23 |
Avogadro's number (CODATA 2010 value) | |
const double | pi =acos(-1.0) |
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const double | pi2 =pi*pi |
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const double | zeta32 =2.6123753486854883433 |
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const double | zeta2 =1.6449340668482264365 |
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const double | zeta52 =1.3414872572509171798 |
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const double | zeta3 =1.2020569031595942854 |
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const double | zeta5 =1.0369277551433699263 |
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const double | zeta7 =1.0083492773819228268 |
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const double | sin2_theta_weak =0.23126 |
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const double | hc_mev_fm |
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const double | hc_mev_cm =hc_mev_fm*1.0e-13 |
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const double | ec_gauss_fm2 |
1 ![]() ![]() | |
const double | gauss2_fm4 |
Conversion factor from ![]() ![]() | |
const double | mass_lambda_MeV =1115.683 |
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Squared electron charge | |
const double | e2_gaussian |
Electron charge squared in Gaussian units (derived) More... | |
const double | e2_hlorentz =o2scl_const::fine_structure*4.0*pi |
Electron charge sqaured in Heaviside-Lorentz units where ![]() | |
const double | e2_mksa =o2scl_mksa::electron_charge |
Electron charge squared in SI(MKSA) units (derived) More... | |
CODATA 2010 values are in Mohr12.
const double o2scl_const::e2_gaussian |
In Gaussian Units:
Definition at line 1005 of file constants.h.
const double o2scl_const::e2_hlorentz =o2scl_const::fine_structure*4.0*pi |
const double o2scl_const::e2_mksa =o2scl_mksa::electron_charge |
In MKSA units:
Note the conversion formulas
as mentioned, e.g. in pg. 13 of D. Griffiths Intro to Elem. Particles.
Definition at line 1053 of file constants.h.
const double o2scl_const::ec_gauss_fm2 |
Definition at line 1059 of file constants.h.
const double o2scl_const::gauss2_fm4 |
This is useful, e.g. in converting magnetic field squared to an energy density.
Definition at line 1068 of file constants.h.
const double o2scl_const::hc_mev_fm |
Definition at line 978 of file constants.h.
const double o2scl_const::mass_lambda_MeV =1115.683 |
Value from PDG live (5/1/14).
Definition at line 1076 of file constants.h.
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