[meteorite-list] Second experiment confirms faster-than-lightparticles
From: Sterling K. Webb <sterling_k_webb_at_meteoritecentral.com>
Date: Fri, 18 Nov 2011 18:48:16 -0600 Message-ID: <2CD8E273D97448E5B685CF28D366FBE0_at_ATARIENGINE2> Hi, I downloaded the experimenters' original paper where they discuss at great length all the corrections they applied and THAT correction is not mentioned nor acknowledged to be needed. So, we don't know if they were aware of it or not. In this latest news piece, they do not address the relativistic analysis. They do address another criticism, that of too wide a packet length for the little neutral ones. They suggest possibly running a fiber the 454 miles between the sites, to measure the "light-time." It seems to me that if they had accounted for the relativistic effects beforehand (and neglected to mention it their paper), they would merely say so and have done with it. I'm not putting any big money bets on really fast neutrinos, not in this frame of reference. Sterling K. Webb -------------------------------------------------------------------- ----- Original Message ----- From: "Matson, Robert D." <ROBERT.D.MATSON at saic.com> To: "JoshuaTreeMuseum" <joshuatreemuseum at embarqmail.com>; <meteorite-list at meteoritecentral.com> Sent: Friday, November 18, 2011 5:44 PM Subject: Re: [meteorite-list] Second experiment confirms faster-than-lightparticles > Hi Phil, > > It was my understanding that the mystery of the CERN faster-than- > light-speed neutrino result was solved over a month ago: failure > to account for the relativistic motion of the GPS clocks used to > time the neutrinos. > > GPS satellites orbit in planes inclined 55 degrees relative to > the equator, coincidentally somewhat parallel to the neutrino > flight path bearing on the ground. From the satellite's perspective, > both the positions of the neutrino source and the neutrino detector > are changing: in this particular case, from the perspective of the > GPS clock, the detector is moving towards the neutrino source, and > consequently the distance travelled by the particles -- as measured > in the frame of the clock -- is shorter than the distance measured > on the ground. As a result, the neutrinos should arrive about 32 > nanoseconds early: an amount that must be doubled because the same > error occurs at each end of the experiment. So the total correction > is 64 nanoseconds: almost exactly what the OPERA team observed. > > If they ran the experiment a second time and got the same result, > it seems to me that it is only confirming a prediction of > special relativity. --Rob > > ______________________________________________ > Visit the Archives at > http://www.meteoritecentral.com/mailing-list-archives.html > Meteorite-list mailing list > Meteorite-list at meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list Received on Fri 18 Nov 2011 07:48:16 PM PST |
StumbleUpon del.icio.us Yahoo MyWeb |