In reply to Axil Axil's message of Mon, 7 Jul 2014 19:42:22 -0400: Hi, >From the referenced article: > ><Snip> > >The quarks have spin 1/2, so physicists originally assumed that two of the >quarks were in opposite alignment (cancelling their spin), leaving one >unpaired quark to give the proton spin. However, measurements of >muon-proton collisions found only a quarter of the protons spin comes from >quark spins. The rest has to come from gluon spins and/or the orbital >motion of quarks and gluons inside the proton.
The orbital motion of quarks is a good candidate. See http://checkerboard.dnsalias.net/ > ><EndSnip> > >I referenced this article to show that gluons have spin and/or can produce >spin. > >I believe that the standard model doctrinaire on gluon interactions that >gluons can not interact with photons. > >I don't understand how a gluons can demonstrate magnetic properties(spin) A static magnetic field is only associated with spin if the particle is charged. A neutral rotating elementary particle (not a composite particle) would have spin, but no static magnetic field. [snip] Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
