I just learned that strong and weak nuclear forces relate to decay/emission. I know absorbtion depends on Energy levels(QM) and heat(thermodynamics , kinetic energy , entropy) and E = gamma mc^2 ( special relativity). Assuming collision , are there fundamental forces associated with absorbtion ?
I add that I am not an expert in QM.
Edit : I noticed my question is not so good , but that was because of my ignorance. My apologies.