>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 proton’s 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. <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) and at the same time be unable to interact with photons. However, this paper: Exclusive Physics at the Tevatron shows photon/gluon interactions: http://arxiv.org/pdf/1006.0204.pdf On Mon, Jul 7, 2014 at 6:03 PM, <mix...@bigpond.com> wrote: > In reply to Axil Axil's message of Sun, 6 Jul 2014 13:59:19 -0400: > Hi, > [snip] > >http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.113.012001 > > > >Gluons Chip in for Proton Spin > > No, it just means they rotate. The magnetic field would come from the > rotation > of the quarks. > > > > >It looks like polarized gluons produce most of the spin of the proton. > That > >means that the gluons are magnetic entities. > > > >A magnetic field applied to the proton could disrupt the polarization of > >the gluons and therefore the strong force that keeps protons and neutrons > >together in the nucleus. > > > >There is an intimate relationship between the strong force, magnetic > force, > >and the gluon that might underpin LENR reactions at the most basic level. > > > >. > Regards, > > Robin van Spaandonk > > http://rvanspaa.freehostia.com/project.html > >
