Dark energy–dark matter interactions as a solution to the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1043" altimg="si5.svg"><mml:msub><mml:mrow><mml:mi>S</mml:mi></mml:mrow><mml:mrow><mml:mn>8</mml:mn></mml:mrow></mml:msub></mml:math> tension

In this work we consider a scenario where the dark energy is dynamical fluid whose density can be transferred to matter via coupling function proportional of energy. particular, investigate model’s ability address S8 tension and find that against data from Planck, BAO Pantheon model (1) significantly reduce significance tension, (2) does so without exacerbating nor introducing any other (such as H0 tension) (3) worsening fit considered sets with respect ?CDM model. We also test weak lensing surveys such KiDS DES, further improves, significant impact on parameter statistical measure.