Category Archives: Experimental HEP News

See here for a new status report on the state of beam commissioning at the LHC. About two weeks ago a peak luminosity of about 2 x 1029cm-2s-1 was reached, using beams with 13 bunches, but each bunch relatively low … Continue reading →

The XENON100 dark matter experiment now has a paper out reporting their first results, from a test run of 11 days. They claim a 90% confidence level exclusion of 50 GeV WIMPs with a spin-independent elastic cross-section above 3 x … Continue reading →

The news from Fermilab is that the Tevatron has set a new luminosity record, with a store last Friday that had an initial luminosity of 4.04 x 1032cm-2s-1, or, equivalently, 404 inverse microbarns/sec. For more about this, see a new … Continue reading →

Current schedule is for first 7 TeV center of mass collisions tomorrow (Tuesday) at 9:17 am Geneva time. Injection of the beams will take place after 2 am, ramp up to 3.5 TeV/beam from 3-4 am. For more details of … Continue reading →

At 5:23 am in Geneva this morning, for the first time the two LHC beams were ramped up to high energy, the 3.5 TeV/beam that they plan to run at for the next two years. These are the highest energy … Continue reading →

HEPAP is now meeting in Washington, presentations available here. Like the rest of science, HEP has been doing very well in the federal budget, including a temporary increase due to the stimulus program. Excluding stimulus money, the president’s FY2011 request … Continue reading →

There’s now a tentative date set for first high energy (3.5 TeV/beam) collisions at the LHC: it’s March 30th.

Beam commissioning has started for 2010, with beam back in the LHC starting early Sunday morning. The plan is for roughly a month until colliding beams at 3.5 TeV/beam. For the latest news, see here and here. Update: Please, everyone, … Continue reading →

A new schedule for operation of the LHC is out. It has sector tests of injection into the LHC starting the evening of Feb. 17, circulating beams again around Feb. 22, about 6 weeks for beam commissioning, then physics starting … Continue reading →