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Coffeeshop Physics 27 Aug 2011 | 05:42 am
Hello RSS subscribers! It has been over a year since my last post, and since then, I have started developing my own blog. (I was just a guest author here.) It is called Coffeeshop Physics, and it is ...
My last LHC status update 22 Sep 2010 | 08:22 am
I haven’t said much since this year’s start-up of the LHC, but there have been some interesting developments, so I’ll add one last update. If you haven’t been following the LHC status, it has been ex...
7 TeV collisions tonight… 30 Mar 2010 | 11:51 am
… if all goes well. The LHC has been circulating two 3.5 TeV beams off and on for the past week, and tonight they plan to turn off the separators keeping them apart. We should then see the first 7 TeV...
Particle body-count 2 19 Dec 2009 | 07:49 am
As a result of today’s talks, here’s the updated body-count (all four experiments with a lot of overlap): Particle Original discovery Method of observation in the LHC experiments Electron/positron...
The particle body-count 17 Dec 2009 | 10:42 am
Earlier today, the LHC finished its 2009 run. They did everything they said they were going to do: provide physics-quality 900 GeV collisions and break the world record by colliding protons with a co...
Erratum: no high-energy collisions yet 3 Dec 2009 | 12:50 am
Yesterday, when I said, The LHC has officially become the world’s highest-energy collider, by colliding protons at 2.36 TeV (above the Fermilab Tevatron’s record of 1.96 TeV), I misunderstood a poin...
Rediscovering the Standard Model 2 Dec 2009 | 02:02 am
In the past week, three milestones have been passed: the first π0 particles have been reconstructed from their decay products, shown at the public LHC week 1 conference (by CMS and LHCb); the LHC ha...
Protons have *collided* in the LHC 24 Nov 2009 | 09:42 am
At least it looks like it from this CMS event display: See the CMS e-commentary for hourly updates and more information. (That’s how I know which results are public. ) The yellow boxes are silicon ...
Protons have orbited the LHC! 21 Nov 2009 | 09:19 am
The beam went three times around the LHC ring: see CMS’s e-commentary and CERN’s twitter. This is the milestone that was a big media event last year (September 10, 2008). Update: now it’s 500 times ...
“Beam-splashes” to arrive at CMS soon, possibly this weekend 8 Nov 2009 | 07:20 am
See CMS e-commentary for live updates. “Beam-splashes” are when a beam is threaded part-way through the LHC ring, then deliberately collided with an absorbing block of tungsten to stop it, upstream o...
