Table 7.

Bosonic DM upper limits (L) and sensitivities (S) at 90% CI/CL on the kinetic mixing strength of DPs ($\alpha _{}^{_{}^{\prime }}/\alpha$) and on the coupling of ALPs to electrons ($g_{\text{ae}}$) at indicated masses as determined in the Bayesian and Frequentist frameworks. The photoelectric-like absorption process as well as the dark Compton scattering were included in the DM interaction rate with Ge material when deriving the coupling values. For each mass, the observed best-fit value (obs.) is shown together with its significance (sig.). For non-positive obs. values, the significance is null and not displayed. The extracted upper limits at 90% CI/CL and the median sensitivity for the signal strength are indicated with $N_{\text{up}}$ and $N_{\text{s}}$, respectively. Upper limits derived for all masses between 65 keV and $2m_{\text{e}}$ are shown in Fig. 7. Sensitivities for the entire mass range are shown in Fig. 12

Mass (keV)	Framework	Signal counts			$\alpha _{}^{_{}^{\prime }}/\alpha$ (DPs)		$g_{\text{ae}}$ (ALPs)
		$Obs.(sig.)$	$N_{\text{up}}$	$N_{\text{s}}$	L	S	L	S
65	Bayesian	22.2 (0.5$\sigma$)	189.7	173.2	$5.7\times {10}^{-25}$	$5.2\times {10}^{-25}$	$2.0\times {10}^{-12}$	$1.9\times {10}^{-12}$
196		23.8 (0.9$\sigma$)	171.9	161.4	$1.1\times {10}^{-23}$	$9.9\times {10}^{-24}$	$2.8\times {10}^{-12}$	$2.7\times {10}^{-12}$
1021		0.0	34.4	46.0	$1.1\times {10}^{-22}$	$1.4\times {10}^{-22}$	$3.3\times {10}^{-12}$	$3.8\times {10}^{-12}$
65	Frequentist	$-$ 89.4	99.6	177.2	$3.0\times {10}^{-25}$	$5.4\times {10}^{-25}$	$1.5\times {10}^{-12}$	$2.0\times {10}^{-12}$
196		50.5 (0.5$\sigma$)	210.9	159.7	$1.3\times {10}^{-23}$	$9.9\times {10}^{-24}$	$3.1\times {10}^{-12}$	$2.7\times {10}^{-12}$
1021		$-$ 15.9	31.0	45.8	$1.0\times {10}^{-22}$	$1.4\times {10}^{-22}$	$3.1\times {10}^{-12}$	$3.8\times {10}^{-12}$