Nuclear transparency

Nuclear transparency is the ratio of cross-sections for exclusive processes from the nuclei to those of the nucleons.

If the nuclear cross-section is denoted as ${\displaystyle \sigma _{N}}$ and free nucleon cross-section as ${\displaystyle \sigma _{0}}$ then nuclear transparency can be defined as
${\displaystyle T=\sigma _{N}/A\sigma _{0}}$, where ${\displaystyle \sigma _{N}}$ can be parameterized in terms of ${\displaystyle \sigma _{0}}$ as ${\displaystyle \sigma _{N}=A^{\alpha }\sigma _{0}}$.

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