Posts tagged CMS

dijet7TeV_scaled

Collisions imminent

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Howdy lovers,

Well, today’s the day!  The LHC people have decided, along with all the experimenters, that it’s time to collide some protons at 7 TeV.  Actually, the hoopla was originally scheduled to start this morning at 09h00 (CERN time).  That plan was amended several times, so that physicists I talked to all had different ideas of the actual start time for colliding the beams (I heard 03h00 at some point).  The initial attempts this morning to ramp the beam have both failed due to unforeseen errors in the quench protection system (QPS) and some other electronics, but they’re now saying they expect beam (and collisions!) to be ready around noon or 13h00.  So, that means that our early risers in the US might be privy to all the good shit.

For your viewing pleasure, we’ve compiled a list of links to various webcasts broadcasting the day’s activities:

So, click away.  We’ll try to keep you updated, maybe copying some of the pretty photos of the day here for you to see.  Let us know if you find other interesting webcasts to link here, either by commenting or by e-mailing dipole@cernlove.org.

Happy collisions!

UPDATE: We have collisions!  At 13h22, the LHC people declared “STABLE BEAMS,” and we’ve been seeing 7 TeV collisions ever since.  The press release is here, and the champagne is everywhere.

CMS has re-purposed its assembly building as a lecture hall

A very sturdy projector stand

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Let’s have our next physics meeting in the CMS assembly building. All we need is lots of PowerPoint slides, a 10 000 lumen projector, and a five-ton concrete block to set it on. Have some grad students carry it over here.

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