The Norwegian Nobel Committee which selects the recipients of the peace prize doesn't have anything to do with the physics and chemistry prizes which are awarded by the Royal Swedish Academy of Sciences.
Thanks for supplying the extra detail as a counterpoint to my flippancy. I was aware that the Nobel Prize for Economics was "not a real Nobel Prize" but didn't know the Peace Prize was also quite separate from the science based awards.
It does make sense though, seeing as the scientific awards are generally awarded based on actual breakthroughs, whereas the political ones are, let's say, fuzzier.
> didn't know the Peace Prize was also quite separate from the science based awards.
It's a bit more complicated than that. The committees for Physics and Chemistry (and Economics) are colocated at the Royal Swedish Academy of Sciences. Medicine is elsewhere, as is Literature. Physics, Chemistry, Medicine, and Literature work together for final approval. Peace is completely on its own.