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 →