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We present the measurement of total and stellar/dark matter decomposed massdensity profile around a sample of galaxy groups and clusters with dynamicalmasses derived from integral-field stellar kinematics from the MaNGA survey inPaper I and weak lensing derived from the DECaLS imaging survey. Combining thetwo data sets enables accurate measurement of the radial density distributionfrom several kpc to Mpc scales. Intriguingly, we find that the excess surfacedensity derived from stellar kinematics in the inner region cannot be explainedby simply adding an NFW dark matter halo extrapolated from lensing measurementat a larger scale to a stellar mass component derived from the NASA-Sloan Atlas(NSA) catalogue. We find that a good fit to both data sets requires a stellarmass normalization about 3 times higher than that derived from the NSAcatalogue, which would require an unrealistically too-heavy initial massfunction for stellar mass estimation. If we keep the stellar mass normalizationto that of the NSA catalogue but allow a varying inner dark matter densityprofile, we obtain an asymptotic slope of $\gamma_{\rm gnfw}$=$1.82_{-0.25}^{+0.15}$ and $\gamma_{\rm gnfw}$= $1.48_{-0.41}^{+0.20}$ for thegroup bin and the cluster bin respectively, significantly steeper than the NFWcase. We also compare the total mass inner density slopes with those fromTNG300 and find that the values from the simulation are lower than theobservation by about $2\sigma$ level.

MaNGA DynPop -- IV. Stacked total density profile of galaxy groups and  clusters from combining dynamical models of integral-field stellar kinematics  and galaxy-galaxy lensing