2015 Nobel Prize in Physics
Awarded to: Takaaki Kajita, Arthur B. McDonald
The discovery of neutrino oscillations, which shows that neutrinos have mass.
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Source: Wikipedia / Nobel Foundation
In 2015, the Nobel Prize in Physics was awarded to Takaaki Kajita, Arthur B. McDonald.
The prize recognized: The discovery of neutrino oscillations, which shows that neutrinos have mass.
Neutrino oscillation is a quantum mechanical phenomenon in which a neutrino created with a specific lepton family number ("lepton flavor": electron, muon, or tau) can later be measured to have a different lepton family number.
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Source: Internal
Why does neutrino oscillations matter?
Understanding neutrino oscillations is fundamental to how we explain the physical world. The work recognized in 2015 helped scientists build more accurate models of nature, leading to practical technologies and a deeper understanding of why things behave the way they do.
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Source: Nobel Foundation
Historical context: 2015
Takaaki Kajita, Arthur B. McDonald (various countries) received the Nobel Prize in Physics in 2015.
The official citation from the Nobel Committee reads:
"for the discovery of neutrino oscillations, which shows that neutrinos have mass"
The Nobel Prize in Physics has been awarded since 1901. Each award marks a turning point in humanity's understanding of the physical universe.
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