From: Martin Shough <parcellular.nul> Date: Tue, 27 Sep 2011 15:47:16 +0100 Archived: Wed, 28 Sep 2011 08:27:47 -0400 Subject: Re: D'oh! Light Speed Threshold Broken? >From: Martin Shough <parcellular.nul> >To: <post.nul> >Date: Mon, 26 Sep 2011 13:00:51 +0100 >Subject: Re: D'oh! Light Speed Threshold Broken? >I wanted to point out that superluminal neutrinos are not >necessarily forbidden in existing physics. The basic explanation >of 'why' seems to be that the limits on neutrino mass are >limits on a quantity which is really mass (or momentum actually) >squared, so the root can be negative. I think I got this back to front ('surely not!' came the astonished chorus ;-)). It's the squared momentum that's negative, but the equation can be rewritten to express the root mass as positive, and this is what is _usually_ done. The thrust of the tachyonic neutrino theorists has been to see this as a 'fix' too far and accept an imaginary mass, implying speed >c. Sorry. See: http://arxiv.org/PS_cache/hep-ph/pdf/0009/0009291v3.pdf And a CERN paper apparently from 1998 (oddly, 2008 appears inside the paper) http://arxiv.org/abs/hep-ph/9712265 Martin Shough Listen to 'Strange Days... Indeed' - The PodCast At: http://www.virtuallystrange.net/ufo/sdi/program/ These contents above are copyright of the author and UFO UpDates - Toronto. They may not be reproduced without the express permission of both parties and are intended for educational use only.
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