{"id":2519,"date":"2009-11-23T09:51:11","date_gmt":"2009-11-23T14:51:11","guid":{"rendered":"http:\/\/www.math.columbia.edu\/~woit\/wordpress\/?p=2519"},"modified":"2009-11-27T12:18:58","modified_gmt":"2009-11-27T17:18:58","slug":"lhc-update-3","status":"publish","type":"post","link":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/?p=2519","title":{"rendered":"First Collisions at the LHC"},"content":{"rendered":"<p>Things evidently went extremely well over the weekend at the LHC, with simultaneous circulating beams achieved this morning. Speculation is that first collisions (at the injection energy of 450 GeV\/beam) are imminent.  Places for up to the minute information include <a href=\"http:\/\/lhc-commissioning.web.cern.ch\/lhc-commissioning\/news\/LHC-latest-news.htm\">here<\/a>, <a href=\"http:\/\/cmsdoc.cern.ch\/cms\/performance\/FirstBeam\/cms-e-commentary09.htm\">here<\/a> and <a href=\"http:\/\/op-webtools.web.cern.ch\/op-webtools\/vistar\/vistars.php?usr=LHC1\">here<\/a>. <\/p>\n<p><strong>Update<\/strong>: It looks like first collisions have been seen at the LHC.  <a href=\"http:\/\/www.quantumdiaries.org\/2009\/11\/23\/the-rules\/\">Announcement<\/a> comes from a muzzled blogger&#8230;.<\/p>\n<p><strong>Update<\/strong>: Modified posting title.<\/p>\n<p><strong>Update<\/strong>: For a series of talks about events during the first few days since beam injection at the LHC, see <a href=\"http:\/\/indico.cern.ch\/conferenceDisplay.py?confId=74907\">here<\/a>.  Progress was dramatic during the first few days, although it has slowed up recently.  As data starts to come in, the first scientific task for the experiments is to re-discover the Standard Model.  So far, <a href=\"http:\/\/indico.cern.ch\/getFile.py\/access?contribId=3&#038;resId=1&#038;materialId=slides&#038;confId=74907\">CMS<\/a> has managed to rediscover the pi-zero.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Things evidently went extremely well over the weekend at the LHC, with simultaneous circulating beams achieved this morning. Speculation is that first collisions (at the injection energy of 450 GeV\/beam) are imminent. Places for up to the minute information include &hellip; <a href=\"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/?p=2519\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[9],"tags":[],"class_list":["post-2519","post","type-post","status-publish","format-standard","hentry","category-experimental-hep-news"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2519"}],"version-history":[{"count":10,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2519\/revisions"}],"predecessor-version":[{"id":2529,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2519\/revisions\/2529"}],"wp:attachment":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}