surprisal, \(s\)

https://doi.org/10.1351/goldbook.S06195
A function relating the @[email protected] \(P_{0}\) of product states to an observed or calculated product distribution P. It is defined by: \[s=- \ln (\frac{P}{P_{0}})\]
Source:
PAC, 1996, 68, 149. (A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)) on page 188 [Terms] [Paper]