What happens where the LHC's beams meet tells us how the universe works.
for 2020) , the collider’s stewards have not sat by idly since 2018. As part of a raft of technical upgrades, they’ve topped up the collider’s beam, boosting its energy by about 5 percent.“This means an increase in the likelihood for producing interesting physics,” says Elizabeth Brost, a particle physicist at Brookhaven National Laboratory on Long Island, and an LHC collaborator. “As a personal favorite example, we will now get 10 percent more events with pairs of Higgs bosons.
“It’s a win-win situation: Either we observe Higgs pair production soon, which implies new physics,” says Brost, “or we will eventually be able to confirm the Standard Model prediction using the full LHC dataset.” It wasn’t long ago that one potential fodder for observation emerged—not from CERN, but from an old, now-shuttered accelerator at Fermilab, outside Chicago. Researchers poring over old data found that the W boson, a particle responsible for causing radioactive decay inside atoms,a heavier mass than anticipated. If that’s true, it could blow the Standard Model wide open.
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