Luminosity (scattering theory)

In scattering theory and accelerator physics, luminosity (L) is the ratio of the number of events detected (dN) in a certain period of time (dt) to the cross-section (σ): L = 1 σ d N d t . {\displaystyle L={\frac {1}{\sigma }}{\frac {dN}{dt}}.} It has the dimensions of events on time on area, and is usually expressed in the cgs units of cm−2·s−1 or the non-SI units of b−1·s−1.

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