  We present precision measurements of the target and beam-target spin
asymmetries from neutral pion electroproduction in deep-inelastic scattering
(DIS) using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab. We
scattered 6-GeV, longitudinally polarized electrons off longitudinally
polarized protons in a cryogenic $^{14}$NH$_3$ target, and extracted double and
single target spin asymmetries for $ep\rightarrow e^\prime\pi^0X$ in
multidimensional bins in four-momentum transfer ($1.0<Q^2<3.2$ GeV$^2$),
Bjorken-$x$ ($0.12<x<0.48$), hadron energy fraction ($0.4<z<0.7$), transverse
pion momentum ($0<P_T<1.0$ GeV), and azimuthal angle $\phi_h$ between the
lepton scattering and hadron production planes. We extracted asymmetries as a
function of both $x$ and $P_T$, which provide access to transverse-momentum
distributions of longitudinally polarized quarks. The double spin asymmetries
depend weakly on $P_T$. The $\sin 2\phi_h$ moments are zero within
uncertainties, which is consistent with the expected suppression of the Collins
fragmentation function. The observed $\sin\phi_h$ moments suggest that quark
gluon correlations are significant at large $x$.
