{"id":2720,"date":"2012-02-22T20:08:17","date_gmt":"2012-02-23T01:08:17","guid":{"rendered":"http:\/\/spinor.info\/weblog\/?p=2720"},"modified":"2012-02-22T20:08:17","modified_gmt":"2012-02-23T01:08:17","slug":"no-faster-than-light-neutrinos-after-all","status":"publish","type":"post","link":"https:\/\/spinor.info\/weblog\/?p=2720","title":{"rendered":"No faster-than-light neutrinos after all?"},"content":{"rendered":"<p>So maybe neutrinos don&#8217;t travel faster than light after all.<\/p>\n<p>Instead, if <a href=\"http:\/\/news.sciencemag.org\/scienceinsider\/2012\/02\/breaking-news-error-undoes-faster.html\">rumors are to be believed<\/a>, it was a simple instrumentation problem. There is no official confirmation yet, but according to a statement that <a href=\"http:\/\/blogs.nature.com\/news\/2012\/02\/faster-than-light-neutrino-measurement-has-two-possible-errors.html\">also appears<\/a> on Nature&#8217;s news blog, the OPERA team is indeed investigating two problems related to a timer oscillator and an optical fiber connection.<\/p>\n<p>A while back, <a href=\"http:\/\/spinor.info\/weblog\/?p=2401\">I wrote<\/a> that I could identify four possible broad categories for conventional explanations of the OPERA result:<\/p>\n<ol>\n<li>Incorrectly synchronized clocks;<\/li>\n<li>Incorrectly measured distance;<\/li>\n<li>Unaccounted-for delays in the apparatus;<\/li>\n<li><del>Statistical uncertainties<\/del>.<\/li>\n<\/ol>\n<p>Of these, #4 was already out, as the OPERA team verified their result using short duration proton bunches that avoided the use of potentially controversial statistical methods. I never considered #2 a serious possibility, as highly accurate geographic localization is a well established art. Having read and re-read the OPERA team&#8217;s description of how they synchronized clocks, I was prepared to discount #1 as well, but then again, incorrect synchronization can arise as a result of equipment failure, so would that fall under #1 or #3?<\/p>\n<p>In any case, it looks like #3, with a dash of #1 perhaps. Once again, conventional physics prevails.<\/p>\n<p>That is, if we can believe these latest rumors.<\/p>\n<fb:like href='https:\/\/spinor.info\/weblog\/?p=2720' send='true' layout='standard' show_faces='true' width='450' height='65' action='like' colorscheme='light' font='lucida grande'><\/fb:like>","protected":false},"excerpt":{"rendered":"<p>So maybe neutrinos don&#8217;t travel faster than light after all. Instead, if rumors are to be believed, it was a simple instrumentation problem. There is no official confirmation yet, but according to a statement that also appears on Nature&#8217;s news blog, the OPERA team is indeed investigating two problems related to a timer oscillator and <a href='https:\/\/spinor.info\/weblog\/?p=2720' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2720","post","type-post","status-publish","format-standard","hentry","category-physics","category-3-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"_links":{"self":[{"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/posts\/2720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2720"}],"version-history":[{"count":5,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/posts\/2720\/revisions"}],"predecessor-version":[{"id":2725,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/posts\/2720\/revisions\/2725"}],"wp:attachment":[{"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}