Juan José Hernández Rey

Juan José Hernández Rey

Juan José Hernández Rey
Position

Research professor at the Spanish National Research Council (CSIC) at the Institute of Corpuscular Physics (IFIC) in Valencia (University of Valencia-CSIC), co-principal investigator of the KM3NeT research team at IFIC and co-leader of the VEGA Group at IFIC

Nobel Prize in Physics Awarded to Francis Halzen for the discovery of high-energy neutrinos of astrophysical origin and for his “decisive contributions” to the IceCube Observatory

The Royal Swedish Academy of Sciences has awarded the Nobel Prize in Physics to Francis Halzen, the driving force behind the idea of using ice at the South Pole to detect particularly elusive particles known as neutrinos. According to the Academy, his “decisive contributions” have been fundamental to the development of the IceCube Neutrino Observatory: a cubic kilometer of ice equipped with light sensors that allows the scientific community to detect neutrinos originating from extremely high-energy processes in the distant universe, laying the groundwork for an entirely new field of astronomy. 

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A new measurement of the upper limit of the neutrino mass

The KATRIN (Karlsruhe Tritium Neutrino Experiment) team has published the most accurate measurement to date of the upper limit of the neutrino mass in the journal Science, establishing it at 0.45 electronvolts (eV), less than a millionth of the mass of an electron. The KATRIN experiment, launched in 2018 in Germany, will finalise its neutrino mass measurement campaign this year, having reached 1,000 days of data acquisition.

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