Ben Roy Mottelson

Ben Roy Mottelson
Mottelson 1963 in Copenhagen
Born	(1926-07-09)9 July 1926 Chicago, Illinois, U.S.
Died	13 May 2022(2022-05-13) (aged 95) Copenhagen, Denmark
Citizenship	American, Danish
Alma mater	Purdue University (BS) Harvard University (PhD)
Known for	Geometry of atomic nuclei
Spouse(s)	Nancy Jane Reno (1948–1975; 3 children) Britta Marger Siegumfeldt ​ ​ (m. 1983)​
Awards	Atoms for Peace Award (1969) John Price Wetherill Medal (1974) Nobel Prize in Physics (1975) Marian Smoluchowski Medal (1980)
Scientific career
Fields	Nuclear physics
Institutions	Nordita
Thesis	The ground states of lithium-6 and lithium-7 (1950)
Doctoral advisor	Julian Schwinger

Ben Roy Mottelson (9 July 1926 – 13 May 2022) was an American-Danish nuclear physicist. He won the 1975 Nobel Prize in Physics for his work on the non-spherical geometry of atomic nuclei.