Chicago Sun-Times

FERMI LAB MAY HELP UNLOCK SECRET SOFT HE UNIVERSE

- BYEMILYMOO­N Staff Reporter Email: emoon@ suntimes. com Twitter: @ emilym_ moon

Scientists from the University of Chicago and Fermilab broke ground on a new physics experiment that could unlock the mystery of human existence — based off one particle’s journey through the surface of the earth.

Researcher­s will shoot subatomic particles 800 miles from the Fermi National Accelerato­r Laboratory in Batavia to South Dakota, where a 70,000- ton detector will capture them for analysis. Constructi­on on the detector began Friday; it’s all part of an ongoing effort to understand neutrinos, the most abundant — and yet mysterious — particle in the universe.

“This is a big deal,” said Edward Blucher, experiment co- spokesman and physics professor at the University of Chicago and the Enrico Fermi Institute. “This is the beginning of an experiment that can fundamenta­lly affect the way we understand the universe, and it’s at a scale that is a once- in- a- lifetime opportunit­y for all of us.”

Crews will excavate more than 870,000tons of rock from an old South Dakota mine to build detectors at the Sanford Undergroun­d Research Facility, where physicist Ray Davis discovered the neutrino in the 1960s. Researcher­s estimate data collection can begin in 2026 — a short wait to discover age- old cosmic secrets.

“I have a 9- year- old daughter,” Blucher said. “She’s just the right age to be able to do research on this data.”

Scientists say the nearly massless particles traveling at light- speed may hold the key to fundamenta­l questions about the universe, including: Why are we here? What happened after the Big Bang? What is matter, anyway?

“We think neutrinos played a critical role in how the universe evolved into what it is today,” Blucher said.

During their journey west, which will last four thousandth­s of a second, the neutrinos will change type, or “flavor.” As Blucher puts it: “If you produce apple pie at Fermilab and send it 800 miles to South Dakota … it’ll arrive as a cherry pie.” Studying this can help scientists understand the imbalance of matter and anti- matter created moments after the Big Bang, which resulted in “everything we’re made of — us, the planet, the stars.”

Fermilab will generate the world’s highest- intensity neutrino beam from a new detector at its DuPage County headquarte­rs. The laboratory estimates constructi­on will create almost 2,000 jobs.

The $ 1 billion experiment, funded by the U. S. Department of Energy aswell as foreign partners, is the largest internatio­nal science project the U. S. has ever hosted.

 ?? STUDIO/ FERMILAB | SANDBOX ?? The neutrino beam will travel 800 miles through Earth from Fermilab to Sanford Undergroun­d Research Facility in South Dakota.
STUDIO/ FERMILAB | SANDBOX The neutrino beam will travel 800 miles through Earth from Fermilab to Sanford Undergroun­d Research Facility in South Dakota.

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