6.3.1. Liang–Zhang or *E* <sup>p</sup>–*E*iso–*t*<sup>b</sup> Correlation

It is a correlation valid for LGRBs among *E*iso, *E*<sup>p</sup> and the rest-frame break time in the optical band *t*b, i.e., *E*<sup>p</sup> ∝ *E* 0.52 iso *t* 0.64 b [135]. If we take the optical break time as the jet break time, this correlation is similar to the Ghirlanda one. However, the inclusion of additional GRBs made this correlation more scattered. For details, see Ref. [130].
