Article View: sci.physics
Article #4111Re: Some physics questions
From: John C. Baez
Date: Fri, 06 Nov 1992 17:50
Date: Fri, 06 Nov 1992 17:50
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In article <5NOV199211284285@csa2.lbl.gov> sichase@csa2.lbl.gov (SCOTT I CHASE) writes: >In article <23651@galaxy.ucr.edu>, baez@ucrmath.ucr.edu (john baez) writes... >>In article <3NOV199212323281@csa2.lbl.gov> sichase@csa2.lbl.gov (SCOTT I CHASE) writes: >>>It is entirely within the realm of possibility that, for example, some >>>future TOE, which unifies EW, Strong, and Gravitational forces will suggest >>>a reason for the value of the speed of light. As a matter of fact, many >>>people suspect that an ultimate theory would in fact explain all the >>>numbers which appear only as parameters in the Standard Model, such as the >>>value of the electronic charge, the various mixing angles, masses, CP-violating >>>phase, etc. >> >>Hmm. I don't buy this, at least not without further explanation. > >Fair enough. Here are a couple of examples from current physics. In the SM, >the EW mixing angle (a.k.a. the Weinberg angle) is a fundamental parameter. >It must be put in by hand. But if you derive the SM lagrangian from a >GUT lagrangian, like SU(5), you find that you *can* derive a value for >the mixing angle... As the rest of my post indicated, that wasn't the part that I don't buy!! I can imagine a theory that predicts mixing angles, but not a theory that predicts the speed of light (in any exciting sense - see my previous post).
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Newsgroups: sci.physics Path: arc1-ca.pugleaf.net!sparky!uunet!snorkelwacker.mit.edu!galois!riesz!jbaez From: jbaez@riesz.mit.edu (John C. Baez) Subject: Re: Some physics questions Message-ID: <1992Nov6.175022.13136@galois.mit.edu> Sender: news@galois.mit.edu Nntp-Posting-Host: riesz Organization: MIT Department of Mathematics, Cambridge, MA References: <3NOV199212323281@csa2.lbl.gov> <23651@galaxy.ucr.edu> <5NOV199211284285@csa2.lbl.gov> Distribution: na Date: Fri, 6 Nov 92 17:50:22 GMT Lines: 23