## Monday, May 10, 2010

### ATLAS: 66 million collisions

CERN's twitters have good news for us:
Two good LHC runs over the weekend bring lots more collisions to the experiments. ATLAS now has over 66 million: http://atlas.ch/
If you open atlas.ch, a special server dedicated to the detector, you will learn that the total collisions at 7 TeV are actually 124 million. Feel free to choose whom you believe. ;-)

The maximum luminosity so far has been "21 x 10^{27}/cm^2/s" which is "21 x 10^{-12}/fb/s" which is "0.00066 inverse femtobarns per year". Well, they have to improve the luminosity by a factor of 1,000 to collect one inverse femtobarn by the end of 2011.

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Another interesting piece of news appeared via Twitter, a gadget I would have promised to never use just a few months ago. ;-) BTW I am using the Chrowety extension for Chrome to follow my Twitter subscriptions.

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