This week at the LHC
It was standing room only in CERN’s main auditorium yesterday as the laboratory’s Director for Accelerators and representatives from each of the four large LHC experiments reported on the performance of their respective machines during the first few days of LHC operation. The “LHC Week 1″ seminar was the first in a series of regular [...]

How to turn on the Compact Muon Solenoid
When two protons bunches traveling in opposite directors at close to the speed of light first met on Nov. 23 within the Compact Muon Solenoid detector at the Large Hadron Collider at CERN, 100 million detection elements were ready to record. Before detection equipment could record any data from those first collisions, scientists actually had to turn the detector on. Read on to find out how hundreds of scientists and maintenance personnel power up the CMS detector.

First neutrinos seen in new Japanese detector
Physicists from the Japanese-led multi-national T2K neutrino collaboration announced today that over the weekend they detected the first events generated by their newly built neutrino beam at the J-PARC accelerator laboratory in Tokai, Japan.

First particles collide in the Large Hadron Collider
The first protons collided in the Large Hadron Collider today at CERN outside Geneva, Switzerland. The four largest detectors at the LHC all recorded collision events. Scientists at CERN, throughout the United States, and around the world celebrated the news.

The LHC’s next milestone – two simultaneous circulating beams
CERN’s Director for Accelerators Steve Myers announced today that for the first time two beams are circulating simultaneously in the LHC. The announcement was made at a press conference held at the laboratory. The first individual circulating beams of 2009 were successfully established on Friday, November 20. The next steps will be a careful, systematic testing [...]