the mass region $105 < m_{4\ell} < 140\GeV$ are given in Table \[tab:EventYieldsH4l\_PAS\], separately for 7 and 8.

In part of the $m_{4\ell}$ spectrum below 100, the dominant contribution arises from the resonant ${\ensuremath{\PZ \to 4\ell}\xspace}$ production ($s$-channel of the $\PQq \PAQq \to 4\ell$ process via the $\PZ$ boson exchange). The sub-dominant contributions arise from the corresponding $t$- and $u$-channels of the $\PQq\PAQq \to 4\ell$ process, from the reducible background processes ($\PZ+\mathrm{X}$), as well as from the $\Pg\Pg \to \PZ\PZ$ background. In the case of the ${\ensuremath{\PZ \to 4\ell}\xspace}$ measurements, contributions from $s$-, $t$-, and $u$-diagrams of the $\PQq\PAQq \to 4\ell$ process (and their interference), and contribution of the $\Pg\Pg \to \PZ\PZ$ process are estimated from simulation. The $\PZ+\mathrm{X}$ background is evaluated using control regions in data following an identical procedure as the one described above. The expected number of events arising from the $s$-channel of the $\PQq\PAQq \to 4\ell$ process is $57.4 \pm 0.3$, from all other SM processes is $3.6 \pm 0.5$, and 72 candidate events are observed after the final inclusive selection in 8data in the mass region $50 < m_{4\ell} < 105\GeV$.

The reconstructed four-lepton invariant mass distributions in the region of interest for the ${\ensuremath{\PH 