tag:blogger.com,1999:blog-2793748488131782896.post9198319148613692705..comments2023-08-18T11:05:05.423+01:00Comments on Cross Sections: How fast are neutrinos?Rhyshttp://www.blogger.com/profile/15520219929014063200noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-2793748488131782896.post-61720924002663544632012-05-23T12:18:48.150+01:002012-05-23T12:18:48.150+01:00Whoops, I made a mistake here. I meant that the t...Whoops, I made a mistake here. I meant that the tensor should be covariantly conserved, not covariantly constant. That is, its 'covariant divergence' should vanish; for the stress-energy tensor, this corresponds to local conservation of energy-momentum.Rhyshttps://www.blogger.com/profile/15520219929014063200noreply@blogger.comtag:blogger.com,1999:blog-2793748488131782896.post-92047428820077168762012-05-21T20:56:12.967+01:002012-05-21T20:56:12.967+01:00You can disagree all you like, David, but you can&...You can disagree all you like, David, but you can't change the truth. The Opera team found a fault in their equipment, and the Icarus experiment independently measured the speed of the same neutrino beam, and found it to be consistent with the speed of light.<br /><br />The above dispenses with your concerns, but I should also point out that you can't just modify Einstein's equation like that. The -1/2 is required to obtain a covariantly-constant tensor, which can therefore be set equal to the stress-energy tensor, which should be covariantly-constant on physical grounds.Rhyshttps://www.blogger.com/profile/15520219929014063200noreply@blogger.comtag:blogger.com,1999:blog-2793748488131782896.post-91797875254035002082012-05-21T12:41:59.146+01:002012-05-21T12:41:59.146+01:00"This turned out (as most of us all along exp..."This turned out (as most of us all along expected) to be due to an error in the equipment ..." I disagree. The OPERA team members assumed that the Newton/Einstein theory of gravity is 100% correct — this is known to be wrong according to the work of Milgrom, McGaugh, and Kroupa. The GPS timing assumptions were wrong. The Gravity Probe B science team "found" a problem with their 4 super-accurate gyroscopes. NO! Replace the -1/2 in the standard form of Einstein's field equations by -1/2 + sqrt((60±10)/4) * 10^-5 to explain the OPERA neutrino anomaly & the Gravity Probe B results.David Brownhttps://www.blogger.com/profile/10537922851243581921noreply@blogger.com