The Nobel Prize in Physics in 2015 recognizes scientists Japan Takaaki Kajita and Arthur B. McDonald of Canada for their fundamental experiments showed that neutrinos a type of subatomic particle, identity change contributions.
This metamorphosis requires that neutrinos have mass. The discovery has changed our understanding of the innermost workings of matter and can be crucial for our view of the universe.
During the millennium, Takaaki Kajita presented the discovery that neutrinos coming from the atmosphere switch between two identities on their way to the Super-Kamiokande detector in Japan.
The discovery has changed our understanding of how matter and may be crucial for our view of the universe
Meanwhile, the research group led by Canadian Arthur B. McDonald was able to demonstrate that neutrinos from the Sun were not disappearing on their way to Earth. Instead, they were caught with a state or different identity when they reached the Sudbury Neutrino Observatory (Ontario, Canada).
The neutrino puzzle that physicists had fought for decades had been resolved. In comparison with theoretical calculations of the number of neutrinos, up to two thirds of the neutrinos were lost in the measurements they were made on Earth. But the two experiments led to the discovery that neutrinos changed their identities.
The discovery led scientists neutrinos, which long were considered massless particles, they must have some mass, however small out.
For particle physics this was a historic discovery. The so-called standard model of the inner workings of matter had been an incredible success, having resisted all experimental challenges for over twenty years. However, as required by that neutrinos have no mass, new observations clearly showed that this model may not be the complete theory of the fundamental components of the universe.
The discovery now awarded the Nobel Prize this Physical year has yielded important insights into the hidden world of neutrinos. After photons, particles of light, neutrinos are the most numerous in the cosmos. The Earth is constantly bombarded by them.
Many neutrinos are created in reactions between cosmic radiation and the atmosphere. Others are produced in nuclear reactions within the sun. Thousands of billions of neutrinos are flowing through our bodies every second. Virtually nothing can stop its passage. Neutrinos are the most elusive elementary particles of nature.
Now the experiments are continuing and intense activity is underway around the world to capture neutrinos and examine its properties. It is expected that new discoveries about their deepest secrets change our current understanding of the history, structure and future fate of the universe.
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