slowdown_func_p

function to evaluate a slowdown momentum distribution, https://arxiv.org/abs/1808.01934v2, eq. 2.9, using only length pf p

slowdown_func_p(p, n, K, p_c, p_b, b)

Arguments

p	numeric length of momentum vector, p = norm(c(p_perp, p_par))
n	numeric particle density.
K	numeric integration constant
p_c	numeric critical momentum
p_b	numeric birth momentum
b	numeric transport parameter

Value

numeric value of momentum distribution at (p_perp, p_par)