Reference

BlattWeisskopf{L}(d::Float64)

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

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

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

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

See also HadronicLineshapes.blatt_weisskopf for a type-stable call with a runtime l.

blatt_weisskopf(p, l::Int, d)

Value of the Blatt-Weisskopf factor F_l(d p) for an orbital momentum l given at runtime. Equivalent to BlattWeisskopf{l}(d)(p), but type-stable when l is not a compile-time constant.