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Relativistic jets launched by supermassive black holes, so-called as activegalactic nuclei (AGNs), are known as the most energetic particle acceleratorsin the universe. However, the baryon loading efficiency onto the jets from theaccretion flows and their particle acceleration efficiencies have been veiledin mystery. With the latest data sets, we perform multi-wavelength spectralanalysis of quiescent spectra of 13 TeV gamma-ray detectedhigh-frequency-peaked BL Lacs (HBLs) following one-zone staticsynchrotron-self-Compton (SSC) model. We determine the minimum, cooling break,and maximum electron Lorentz factors following the diffusive shock acceleration(DSA) theory. We find that HBLs have $P_B/P_e\sim6.3\times10^{-3}$ and theradiative efficiency $\epsilon_{\rm rad,jet}\sim6.7\times10^{-4}$ where $P_B$and $P_e$ is the Poynting and electron power, respectively. By assuming 10leptons per one proton, the jet power relates to the black hole mass as $P_{\rmjet}/L_{\rm Edd}\sim0.18$ where $P_{\rm jet}$ and $L_{\rm Edd}$ is the jetpower and the Eddington luminosity, respectively. Under our model assumptions,we further find that HBLs have the jet production efficiency of $\eta_{\rmjet}\sim1.5$ and the mass loading efficiency of $\xi_{\rmjet}\gtrsim5\times10^{-2}$. We also investigate the particle accelerationefficiency in the blazar zone by including the most recent Swift/BAT data. Oursamples ubiquitously have the particle acceleration efficiency of$\eta_g\sim10^{4.5}$, which is inefficient to accelerate particles up to theultra-high-energy-cosmic-ray (UHECR) regime. This implies that the UHECRacceleration sites should be other than the blazar zones of quiescent low powerAGN jets, if one assumes the one-zone SSC model based on the DSA theory.

Baryon Loading Efficiency and Particle Acceleration Efficiency of Relativistic Jets: Cases For Low Luminosity BL Lacs