Reference

BlattWeisskopf{L}(d::Float64)

Create a lambda-function for the Blatt-Weisskopf barrier factor. This functor expects momentum as an input.

\[F_l^2 = rac(z^{2l}}{\chi_l(z^2)}\]

where $\chi_l$ is an order-l polynomial of $z^2$. The function returns F_l, taking a square root of the $F_l^2$ expression.

Arguments

• d::Float64: The scale parameter.

Example

```julia bw = BlattWeisskopf{1}(1.5) result = bw(0.5) # Call with momentum 0.5