Gaja Alaga
Gaja Alaga 1924 - 1988, was a theoretical physicists in the field of the nuclear physics.
Academician and professor at University of Zagreb. He worked in Zagreb,(Croatia) but also at the Niels Bohr Institute in Copenhagen,(Denmark), Berkeley, Ludwig-Maximilians University in Munich,(Germany). In 1955, in cooperation with K. Alder , B. Mottelson discovered the so called "K-selection rules" and "intensity rules" for beta and gamma transitions in deformed atom nuclei.
The discovery was a key in developing new nuclei models which confirmed that subatomic particles can distort the shape of the nucleus challenging the theory of it's perfect spherical shape for which in 1975 Aage Niels Bohr, Benjamin Roy Matteson and Leo James Rainwater recieved the Nobel Prize).
Also in 1955, yet another discovery, rules for beta and gama transition for haviely damaged atomic orbits, were published in the journal Physical Review. Both discoveries are known as "Alaga rules" and are in everydays use among the nuclear scientists and in scientific literature.
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