Stars as Laboratories for Fundamental Physics - MPP Theory Group

Symbols
Symbols which have only a local meaning in, say, one paragraph are
not listed here. Four-momenta are usually denoted by uppercase italics
such as K, three-momenta are boldface lowercase letters such as k, the
modulus of a three-momentum is in lowercase italics such as k = |k|.
Lorentz indices are usually given in Greek letters (µ, ν, α, β, etc.),
three-indices and flavor indices in Latin letters (i, j, k, etc.).
Functions, Operators
Besides the usual functions and operators, the following convention may
be noteworthy.
∂ x partial derivative ∂/∂x
ln natural logarithm
log logarithm base 10
Latin Symbols
a axion, axion field, annihilation operator, acceleration, radiation
constant (a = π 2 /15 in natural units)
a i ion-sphere radius
A electromagnetic vector potential, atomic mass number
B magnetic field, operator for “background” medium
B ω specific energy density of a radiation field
c speed of light (c = 1 in natural units)
c j speed of propagation of particle j
c p heat capacity at constant pressure
C V,A vector and axial-vector weak-coupling constants
C j effective Peccei-Quinn charge of fermion j
d electric dipole moment
d, D distance
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