minimum density of states criterion

This is a criterion used in Rice–Ramsperger–Kassel–Marcus (RRKM) theory for locating the transition state. The reaction coordinate $r$ at the transition state, according to this criterion, is given by $∂ ( N ɛ r ) ∂ r = 0$ , where $N ɛ r$ is the density of states at an internal energy $ɛ r$ .

Source:

PAC, 1996, 68, 149 (A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)) on page 174