  We investigate the dynamical spin and charge structure factors and the
one-particle spectral function of the one-dimensional extended Hubbard model at
half band-filling using the dynamical density-matrix renormalization group
method. The influence of the model parameters on these frequency- and
momentum-resolved dynamical correlation functions is discussed in detail for
the Mott-insulating regime. We find quantitative agreement between our
numerical results and experiments for the optical conductivity, resonant
inelastic X-ray scattering, neutron scattering, and angle-resolved
photoemission spectroscopy in the quasi-one-dimensional Mott insulator
SrCuO$_2$.
