Oak Ridge Today

U.S. joins world in new era of research at Large Hadron Collider

Posted at
By Leave a Comment

Alice

At the Large Hadron Collider, scientists have begun to collect new data from experiments such as ALICE, which aims to reproduce conditions similar to those that existed immediately after the Big Bang. (Image credit: CERN)

 

New LHC data gives researchers from around the world their best chance yet to study the Higgs boson and search for dark matter and new particles.

On Wednesday, scientists at the Large Hadron Collider at CERN, the European research facility, started recording data from the highest-energy particle collisions ever achieved on Earth. This new proton collision data, the first recorded since 2012, will enable an international collaboration of researchers that includes more than 1,700 U.S. physicists to study the Higgs boson, search for dark matter, and develop a more complete understanding of the laws of nature.

“Together with collaborators from around the world, scientists from roughly a hundred U.S. universities and laboratories are exploring a previously unreachable realm of nature,” said James Siegrist, the U.S. Department of Energy’s associate director of science for high-energy physics. “We are very excited to be part of the international community that is pushing the boundaries of our knowledge of the universe.”

The Large Hadron Collider, the world’s largest and most powerful particle accelerator, reproduces conditions similar to those that existed immediately after the Big Bang. Oak Ridge National Laboratory led an equipment upgrade for LHCs experiment called ALICE (for A Large Ion Collider Experiment), which aims to learn more about the conditions of the early universe. [Read more…]

U.S. scientists celebrate the restart of the Large Hadron Collider, which involves ORNL

Posted at
By 3 Comments

Note: Oak Ridge National Laboratory has led an eight-year upgrade of the electromagnetic calorimeter used for LHC’s experiment called ALICE  (for A Large Ion Collider Experiment). This detector measures the energies of high-energy electrons and gamma rays to learn more about the conditions of the early universe. Thomas M. Cormier leads the LHC Heavy Ion Group in ORNL’s Physics Division.

On Sunday, April 5, the world’s most powerful particle accelerator began its second act. After two years of upgrades and repairs, proton beams once again circulated around the Large Hadron Collider, located at the CERN laboratory near Geneva, Switzerland.

With the collider back in action, the more than 1,700 U.S. scientists who work on LHC experiments are prepared to join thousands of their international colleagues to study the highest-energy particle collisions ever achieved in the laboratory.

These collisions—hundreds of millions of them every second—will lead scientists to new and unexplored realms of physics, and could yield extraordinary insights into the nature of the physical universe. [Read more…]