I'd want to know the basic rules to apply the conservation laws in nuclear reactions (nuclear fusion, nuclear fission, radioactive decays, etc.) to determine parity and angular momentum of the products. I know that these principles lay deep in quantum mechanics, but I don't need a very thorough explanation, just the rules. I have searched the Internet a lot but I didn't find simple and clear information. I know that this question would probably require a quite long answer, so if you'd post just a exhaustive link about this it would be enough. Thank you
Well you'll have the typical conservation laws:
And some more particle-specific:
Now studying this material takes a bit of time and effort. Now if you'd like to go into particle physics without going into the whole mathematical scheme behind QFT, then I'd recommend skimming trough "Introduction to High Energy Physics" ~ Donald H. Perkins which provides an excellent overview and is apperantely downloadable over here (on ArXiV.org itself). This course I have taken in my third year of physics after 2 courses of quantum mechanics (non-relativistic) and one introductary course of particle physics (more about the zoölogy of particles and relativity).
If you want to go straight to making models of atomic nulcei and radioactive decay/reactions, then "An Introduction to Nuclear Physics" ~ Cottingham & Greenwood is quite a good read.
The following 6 links are 6 pages of a pdf we got during an exercise-session to summarize the rules for particle interactions.