Physics Nobel for Kajita and McDonald
Stockholm: The Nobel Prize in Physics 2015 was awarded jointly to Takaaki Kajita and Arthur B. McDonald "for the discovery of neutrino oscillations, which shows that neutrinos have mass". Neutrinos are ubiquitous subatomic particles with almost no mass and which rarely interact with anything else, making them very difficult to study.
Takaaki Kajita and Arthur McDonald made important measurements of their properties using huge instruments in Japan and Canada. They were named at a press conference in Sweden. Kajita is director of the Institute for Cosmic Ray Research and professor at the University of Tokyo. McDonald is a professor emeritus at Queen's University in Kingston, Canada. The total number of Nobel physics laureates recognised since 1901 is now 201, including only two women.
The physics prize is awarded by the Royal Swedish Academy of Sciences, which also decides on the chemistry Nobel - announced tomorrow. The first of the 2015 Nobel Prizes, for physiology or medicine, was awarded on Monday by the Nobel Assembly at Karolinska Institutet. It was shared by researchers who developed pioneering drugs against parasitic diseases.