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Article View: sci.physics.relativity
Article #7787

Re: Relativity and QM

#7787
From: John Anderson
Date: Tue, 11 Nov 2003 02:25
45 lines
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Dio wrote:

> John Anderson <3FAEFDAE.3B88E55F@attglobal.net>...
>
> >You don't seem to know much about the issues that you're
> > giving opinions about.  Special relativity and QM have been successfully
> >
> >integrated for over 50 years.  Quantum Electrodynamics is a relativistic
> >quantum theory of electrons and the EM field that has held up
> >to very high precision experimental scrutiny.
>
> CUT
>
> It is this simple, renormalizable structure of the Standard Model that has
> let us derive specific quantitative pridications for experimental results,
> predictions the success of which has confirmed the validity of the theory.
>
> In particular, the principle of renormalizability, together with various
> symmetry principles of the Standard Model, rules out unobserved processes
> and forbids the neutrinos from having masses.

Why does renormalizability prevent neutrinos from having mass?They can have
masses in the standard model.

>
>
> Physicists commonly used to believe that for a quantum field theory to have
> any validity, it had to be renormalizable. This requirement was a powerful
> guide to theorists in formulating the Standard Model.
>
> It was terribly disturbing that it seemed impossible, for fundamental
> reasons, to formulate a renormalizable quantum field theory of gravitation.

Please explain.  There is no fundamental reason why they're
can't be "a renormalizable quantum field theory of gravitation".

No one has ever derived such a theory, but that doesn't mean that
anyone has shown that it can't be done.

I deleted the rest of your posting because it contains more physics
terminology than knowledge of what the terminology means.

John Anderson
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Date: Mon, 10 Nov 2003 21:25:01 -0500
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Subject: Re: Relativity and QM
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