  We investigate dynamical three-body correlations in the Bose gas during the
earliest stages of evolution after a quench to the unitary regime. The
development of few-body correlations is theoretically observed by determining
the two- and three-body contacts. We find that the growth of three-body
correlations is gradual compared to two-body correlations. The three-body
contact oscillates coherently, and we identify this as a signature of Efimov
trimers. We show that the growth of three-body correlations depends
non-trivially on parameters derived from both the density and Efimov physics.
These results demonstrate the violation of scaling invariance of unitary
bosonic systems via the appearance of log-periodic modulation of three-body
correlations.
