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In this paper, we investigate the black hole (BH) spin contribution to jetpower, especially for the magnetic arrested disk (MAD), where only inneraccretion disk luminosity is closely coupled with the spin-jet power, and tryto explain the `outliers' track of the radio $L_{\rm R}$ to X-ray luminosity$L_{\rm X}$ in two black hole X-ray binaries (BHXBs). Our results suggest thatthe BZ-jet and the inner-disk coupling could account for the `outliers' trackof the radio/X-ray correlation in two BHXBs, H1743-322 and MAXI J1348-630.Although the accretion disk of H1743-322 in the outburst could be in the MADstate, there is a lower probability that MAXI J1348-630 is in the MAD state dueto its low jet production efficiency. The difference in the inner-diskbolometric luminosity ratio of the two sources implies that these two BHXBs arein different inner-disk accretion states. We further investigate thephase-changing regime of MAXI J1348-630 and find that there is a phasetransition around $L_{\rm X}/L_{\rm Edd}\sim 10^{-3}$. The assumption ofsub-MAD is discussed as well.

Explaining the 'outliers' track in Black Hole X-ray Binaries with the BZ-jet and inner-disk coupling