New to me

[Jones Beene]

In cosmology, we find ample evidence that supports the idea of matter can be composed of multiple neutrons: neutron stars.    Zero protons, only neutrons, supposedly.   These dense bodies, which contain an enormous number of bound neutrons, suggest that as yet unexplained forces come into play when neutrons gather en masse. But how small can they get? and could they be something else?   four? hydrinos?   or... why worry? according to Sci-Am, physics is complete, no?   "Tetraneutrons"    from: the New Scientist article: "13 things that do not make sense" BTW at # 13 is CF http://www.newscientist.com/article.ns?id=mg18524911.600   FOUR years ago, a particle accelerator in France detected six particles called " tetraneutrons" : four neutrons that are bound together in a way that defies the laws of physics, and should not exist.   Francisco Miguel Marquès and colleagues at the Ganil accelerator in Caen are now gearing up to do it again. If they succeed, these clusters may oblige us to rethink the forces that hold atomic nuclei together...and that will "raise some Cain" in the physics establishment.   Jones