Fig. 3: T2 scattering rate.
From: Theory of superconductivity in doped quantum paraelectrics

(Blue) Scattering rate as a function of T2. Contributions from TO1 (Red) and LO1 (yellow) phonons are included. Parameters ωT = 6 meV, ωL = 20 meV6, AT = 1 and AL = 15 are taken. Blue line is the sum of the red (TO1 contribution) and yellow (LO1 contribution) line.