  We consider a quintessence model with Yukawa interaction between dark energy
and dark matter and constrain this model by employing the recent cosmological
data including the updated cosmic microwave background (CMB) measurements from
Planck 2015, the weak gravitational lensing measurements from Kilo Degree
Survey (KiDS) and redshift-space distortions. We find that an interaction in
the dark sector is compatible with observations. The updated Planck data can
significantly improve the constraints compared with the previous results from
Planck 2013, while the KiDS data has less constraining power than Planck. The
Yukawa interaction model is found to be moderately favored by Planck and able
to alleviate the discordance between weak lensing measurements and CMB
measurements as previously inferred from the standard Lambda cold dark matter
model. N-body simulations for Yukawa interaction model is also performed. We
find that using the halo density profile is plausible to improve the
constraints significantly in the future.
