Re: Positronium in Metastable Deuterons?

[Jones Beene]

Fred, Combined Proton Positronium, Five "Quark" Proton     Did you see this: Physicists discover particle with five quarks - 1 July 2003 After 30 years of searching physicists have finally found evidence for particles containing five quarks. Most particles are either mesons, which contain a quark and an antiquark, or baryons, which comprise three quarks or three antiquarks. Now nuclear physicists in Japan, Russia and the US have discovered a particle that contains two up quarks, two down quarks and a strange antiquark. http://physicsweb.org/articles/news/7/7/1