 Solution

The ultraviolet part of the one-loop matter power spectrum is renormalized by the leading effective field theory of large-scale structure operator proportional to $k^2{\delta }^{(1)}$. The analogous velocity-divergence counterterm iswhere the time dependence and the nonlinear reference scale may be absorbed into the renormalized coefficient $c_{\theta }^2$. In the bispectrum it suppliesand permutations, with momentum shape $-c_{\theta }^2{k}^2{B}_{211}$ on the corrected leg. This cancels the local $k^2$ ultraviolet dependence of $⟨{\theta }^{(3)}{\theta }^{(2)}{\theta }^{(1)}⟩$.