Article View: sci.physics.cond-matter
Article #36Re: Neutrino Masses
From: Uncle Al
Date: Sun, 15 Jul 2001 19:45
Date: Sun, 15 Jul 2001 19:45
30 lines
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2418 bytes
Melissa King wrote: > > There is a fascinating report about > the new discovery of neutrino masses at > http://ajanta.sci.ccny.cuny.edu/~jupiter/pub/sciinfo/index.html > > I found it interesting. More interesting is the purported mass of the heaviest neutrino: 0.05 eV. An electron comes in at 511 KeV, and it is charged. What does 0.05 eV mean! Every neutrino would be relativistic (kinetic energy exceeds rest mass) near room temp, and almost all of them ultra-relativistic in the extreme. If you can't catch up to and pass by a free particle with spin you cannot invert its handedness - neutrinos stay absolutely left-handed. It seems like a sloppy way to build a universe. OTOH, if parity is still a sharp wedge for weak interactions, then let us bear in mind that gravity is a very weak interaction indeed - and it has *never* been rigorously tested for parity violations, http://www.mazepath.com/uncleal/eotvos.htm -- Uncle Al http://www.mazepath.com/uncleal/ (Toxic URL! Unsafe for children and most mammals) "Quis custodiet ipsos custodes?" The Net!
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1141dc,f4dfcde22ee4c9c6 X-Google-Attributes: gid1141dc,public X-Google-Thread: 104752,f4dfcde22ee4c9c6 X-Google-Attributes: gid104752,public X-Google-Thread: 100065,f4dfcde22ee4c9c6 X-Google-Attributes: gid100065,public X-Google-Thread: 106ae0,f4dfcde22ee4c9c6 X-Google-Attributes: gid106ae0,public X-Google-ArrivalTime: 2001-07-15 12:45:49 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!headwall.stanford.edu!news-out.nibble.net!news-in.nibble.net!newsfeed.direct.ca!look.ca!news.UVic.CA!not-for-mail From: Uncle Al <UncleAl0@hate.spam.net> Newsgroups: sci.physics.cond-matter,sci.materials,sci.mech.fluids,fj.sci.matter Subject: Re: Neutrino Masses Date: Sun, 15 Jul 2001 12:45:29 -0700 Organization: The Nobel Krell Lines: 30 Message-ID: <3B51F2D9.CEB79A8B@hate.spam.net> References: <a786eec.0107151054.5e5c867b@posting.google.com> NNTP-Posting-Host: chemcomp10.chem.uvic.ca Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: casper.uvic.ca 995226338 44344 142.104.138.97 (15 Jul 2001 19:45:38 GMT) X-Complaints-To: abuse@uvic.ca NNTP-Posting-Date: Sun, 15 Jul 2001 19:45:38 +0000 (UTC) X-Mailer: Mozilla 4.73 [en] (WinNT; U) X-Accept-Language: en