Richard Henry Dalitz (28 February 1925 – 13 January 2006) was an Australian physicist known for his work in quantum mechanics. February 28 is the 59th day of the year in the Gregorian calendar. ... 1925 (MCMXXV) was a common year starting on Thursday (link will take you to calendar). ... January 13 is the 13th day of the year in the Gregorian calendar. ... 2006 (MMVI) is a common year starting on Sunday of the Gregorian calendar. ... A physicist is a scientist trained in physics. ... A simple introduction to this subject is provided in Basics of quantum mechanics. ...

Born Dimboola, Victoria near Melbourne, Dalitz studied physics and mathematics at Melbourne University before moving to the United Kingdom in 1946, starting his PhD research at the University of Cambridge. After two years he took up a one year post at the University of Bristol, and then joined Rudolf Peierls' group at Birmingham University, completing his thesis demonstrating that the electrically neutral pion could decay into a photon and an electron-positron pair, now known as a Dalitz pair. Dimboola (population 1500) is located in Hindmarsh Shire in the Wimmera region of Western Victoria, Australia, 334 kilometres north-west of Melbourne. ... Melbourne is the state capital and largest city in the Australian state of Victoria, and the second-largest city in Australia (after Sydney), with a population of approximately 3. ... The University of Melbourne, located in Melbourne, in Victoria, is the second oldest university in Australia (the University of Sydney is the oldest). ... The University of Cambridge, located in Cambridge, England, is the second-oldest university in the English-speaking world. ... The University of Bristol is a university in Bristol in the United Kingdom. ... The University of Birmingham is the oldest of three universities in the English city of Birmingham. ...

Dalitz moved to Cornell University in 1953, and in 1954 he introduced the Dalitz plot. He then became a professor at the Enrico Fermi Institute in Chicago from 1956 to 1963, when he moved to the University of Oxford as a Royal Society research professor, although keeping a connection with Chicago until 1966. He retired in 1990. Cornell University is a research university located on the East Hill of Ithaca, New York. ... 1953 (MCMLIII) is a common year starting on Thursday. ... 1954 (MCMLIV) was a common year starting on Friday of the Gregorian calendar. ... The Dalitz plot is a scatterplot often used in particle physics to represent the relative frequency of various (kinematically distinct) manners in which the products of certain (otherwise similar) three-body decays may move apart. ... The Institute for Nuclear Studies was founded September, 1945 as part of the University of Chicago with Samuel King Allison as director. ... Chicago (officially named the City of Chicago) is the third largest city in the United States (after New York City and Los Angeles), with an official population of 2,896,016, as of the 2000 census. ... The University of Oxford, located in the city of Oxford, England, is the oldest university in the English-speaking world. ... The premises of the Royal Society in London (first four properties only). ...

Dalitz was made a Fellow of the Royal Society in 1960.

References

• Close, Frank, "Richard Dalitz: Physicist who mapped the behaviour of exotic particles and argued for the reality of quarks", The Guardian, January 24, 2006.