On Mar 15, 4:14=A0pm, Dan Riley
> The Master
> > I know that sub-atomic particles like protons and electrons are made
> > up of three quarks each, as is a neutron. =A0I no longer have my old
> > college physics book, so I cannot look it up myself, and I have so far
> > been unable to find a web reference to answer my question.
>
> Protons and neutrons are composed of quarks, but not electrons;
> electrons don't have any internal structure that we've observed.
> So there's only three quarks in the initial and final states.
>
> > That question is, when the three quarks of the electron and the three
> > quarks of the proton combine, creating a neutron... =A0What sub-atomic
> > particle do the three "left over" quarks create? =A0Is it a neutrino?
>
> http://en.wikipedia.org/wiki/W_and_Z_bosons
>
> has a neutron decay diagram; electron capture by a proton is the same
> process turned sideways. =A0The proton and electron exchange a W boson,
> turning the electron into a neutrino and one of the u quarks in the
> proton into a d quark, which changes the proton into a neutron.
>
> > Have they actually been discovered? =A0Last time I knew, they were
> > theorized, but never actually "seen".
>
> Neutrinos have been "seen". =A0Since neutrinos interact very weakly
> with normal matter, it takes a lot of mass to observe neutrino
> interactions. =A0One of my favorite neutrino observatories used
> photomultiplier tubes embedded in the Antarctic ice cap:
>
> http://www.amanda.uci.edu/public_info.html
>
> Also see the follow-on experiment,
>
> http://www.icecube.wisc.edu/info/
>
> And for a list of recent neutrino detectors:
>
> http://en.wikipedia.org/wiki/Neutrino_detector
>
> -dan
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wrong!
protons and Neutrons are not compsed only of '3 quarks"
th emass of 3 quarks is less than 10 percent of the P N
mass
the rest 90 percent of missing mass
is the 90 percent sameless ignorance of existing scince
people have to impertinace to say that the rest 90 percent missing
is ...
'glueons'
that no one really knowes to fill that abstart say
by any substancial reality or verification
just shamelsss mumble jumble
now listen carefully what old Catto tells you
the missing 90 percent ---is massive subparticles
(there is just one kind of mass !!
no relativistic and no schmelativistic!) --
--that are STILL UNKNOWN!!
so the differnce between real knowledge
and pretended knowledge (and impertinance )
is as far from our galaxy to the neighbouring galaxy !!
and the sonner serious scientists will realize it--
the better
ATB
Y.Porat
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