Coupled-channel effects of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi mathvariant="normal">?</mml:mi><mml:mi>c</mml:mi><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mo>*</mml:mo><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:msubsup><mml:msup><mml:mover accent="true"><mml:mi>D</mml:mi><mml:mo stretchy="false">¯</mml:mo></mml:mover><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mo>*</mml:mo><mml:mo stretchy="false">)</mml:mo></…

The effects of the $\Sigma_c\bar{D}^*$-$\Lambda_{c}(2595)\bar{D}$ coupled-channel dynamics and various one-boson-exchange (OBE) forces for LHCb pentaquark states, $P_c(4440)$ $P_c(4457)$, are reinvestigated. Both pion $\rho$-meson exchanges considered dynamics. It is found that role $\Lambda_{c}(2595)\bar{D}$ channel in descriptions $P_c(4457)$ states not significant with OBE parameters constrained by other experimental sources. naive models short-distance $\delta(\vec{r})$ term one-pion exchange (OPE) keep failing to reproduce simultaneously. OPE potential full results a too large mass splitting $J^P=1/2^-$ $3/2^-$ $\Sigma_c\bar{D}^*$ bound total isospin $I=1/2$. model only dropped may fit much better but somewhat underestimates splitting. Since $\delta(\vec r)$ from physics, which also contains contributions mesons heavier than those explicitly, we vary strength find masses $P_c(4312)$, $P_c(4440)$, can be reproduced simultaneously reduced about 80\%. While two different spin assignments possible produce their masses, preferred description, parities $1/2^-$, respectively.