- #1

Yaste

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## Homework Statement

A beam of neutrons hit a target of heavy nuclei with spin ##J_N = 0## with resonance when the energy of the incident beam is 250eV, in the cross section distribution with a maximum of 1300 barns. The width of the maximum is 20 eV. Find the partial width of resonance for the elastic scattering.

2. Homework Equations

2. Homework Equations

$$\sigma_{tot} = \dfrac{\pi}{k^2}\dfrac{g\Gamma_i \Gamma}{(E-E_0)^2+\Gamma^2/4}$$

$$g = \dfrac{2J+1}{(2s_1+1)(2s_2+1)}$$

## The Attempt at a Solution

The only thing I don't know is the ##g## in the previous equation. That's the only thing I need in order to solve the problem. Any tips would be appreciated.