Research: New detector for neutrino research represents next frontier in particle physics


SMU is one of more than 100 institutions from around the world building hardware for the Long-Baseline Neutrino Facility (LBNF) – a massive international experiment that could change our understanding of the universe.

Construction for the particle detector will take years and scientists expect to begin taking data in the middle of the next decade, said SMU physicist Thomas E. Coan, a professor in the SMU Department of Physics and a researcher on the experiment. The groundbreaking ceremony was held Friday, July 21, 2017 at the Sanford Underground Research Facility in Lead, South Dakota.

The LBNF will house the international Deep Underground Neutrino Experiment. Called DUNE for short, it will be built and operated by a group of roughly 1,000 scientists and engineers from 30 countries, including Coan.

When complete, LBNF/DUNE will be the largest experiment ever built in the United States to study the properties of the mysterious particles, which could help explain more about how the universe works and why matter exists at all.

“DUNE is designed to investigate a broad swath of the properties of neutrinos, one of the universe’s most abundant but still mysterious electrically neutral particles,” Coan said.

The experiment seeks to understand strange phenomena like neutrinos changing identities — called “oscillation” — in mid-flight and the behavioral differences between a neutrino an its anti-neutrino sibling, Coan said.

“A crisp understanding of neutrinos holds promise for understanding why any matter survived annihilation with antimatter from the Big Bang to form the people, planets and stars we see today,” Coan said. “DUNE is also able to probe whether or not the humble proton, found in all atoms of the universe, is actually unstable and ultimately destined to eventually decay away. It even has sensitivity to undertanding how stars explode into supernovae by studying the neutrinos that stream out from them during the explosion.”

— Written by Margaret Allen

> Read the full story at the SMU Research blog