I have been reading about fusors. The articles usually refer to aneutronic reactions as though they are fusion. But are they really? For example, the pB11 reaction yields He, but this is some sort of fission isn't it? I.e. we start of with a heavier isotope and produce lighter ones through particle bombardment (only with protons instead of neutrons as in a fission reactor). Can someone explain why the view is the way it is?