Arthur B. McDonald led work at the Sudbury Neutrino Observatory, which distinguished a change of neutrino flavor from a low total solar neutrino flux. Reactions on deuterium provided different flavor sensitivities: the charged-current channel selected electron neutrinos, while the neutral-current channel measured all active neutrino flavors. Their comparison revealed a non-electron component while the total flux agreed with solar expectations. The detector thereby tested the solar neutrino problem without requiring all missing electron-flavor events to mean missing solar production.[ref]
A physicist working in experimental particle astrophysics.[ref]
Arthur McDonald by Queen’s University. Independent professional identity
Portrait of Arthur B. McDonald
. Holger Motzkau, 2015, Wikipedia/Wikimedia Commons; photograph at the Royal Swedish Academy of Sciences press conference, 7 December 2015. Creative Commons Attribution-Share Alike 3.0 Unported., via Wikimedia Commons. Source. Articles by others on the same topic
Arthur B. McDonald is a Canadian astrophysicist known for his work in the field of neutrino physics. He was awarded the Nobel Prize in Physics in 2015, along with Takaaki Kajita, for the discovery of neutrino oscillations, which showed that neutrinos have mass. This discovery has significant implications for our understanding of particle physics and the fundamental workings of the universe.