Conventional unit of nuclear quadrupole moments in SI units.
value = barn [value,sigma] = barn
barn
returns the SI value of 1 barn (a common unit
for nuclear electric quadrupole moments) in value
and the standard
deviation in sigma
(if two output arguments are specified).
The value and the standard deviation are taken from the 2002 CODATA collection of recommended values.
amu, avogadro, bmagn, bohrrad, boltzm, clight, echarge, emass, faraday, gfree, hartree, molgas, nmagn, nmass, planck, pmass, rydberg