The Nilsson model is a nuclear shell model treating the atomic nucleus as a deformed sphere. In 1953, the first experimental examples were found of rotational bands in nuclei, with their energy levels following the same J(J+1) pattern of energies as in rotating molecules. Quantum mechanically, it is impossible to have a collective rotation of a sphere, so this implied that the shape of these nuclei was nonspherical. In principle, these rotational states could have been described as coherent superpositions of particle-hole excitations in the basis consisting of single-particle states of the spherical potential. But in reality, the description of these states in this manner is intractable, due to the large number of valence particles—and this intractability was even greater in the 1950s, when computing power was extremely rudimentary. For these reasons, Aage Bohr, Ben Mottelson, and Sven Gösta Nilsson constructed models in which the potential was deformed into an ellipsoidal shape. The first successful model of this type is the one now known as the Nilsson model. It is essentially a nuclear shell model using a harmonic oscillator potential, but with anisotropy added, so that the oscillator frequencies along the three Cartesian axes are not all the same. Typically the shape is a prolate ellipsoid, with the axis of symmetry taken to be z.
The Nilssonmodel is a nuclear shell model treating the atomic nucleus as a deformed sphere. In 1953, the first experimental examples were found of rotational...
successful model of this type is now known as the Nilssonmodel. It is essentially the harmonic oscillator model described in this article, but with anisotropy...
married to Richard Perry, a record executive who produced albums for Harry Nilsson, Julio Iglesias, Ringo Starr and Carly Simon. She and Perry did not have...
Birgit Nilsson (17 May 1918 – 25 December 2005) was a Swedish dramatic soprano. Although she sang a wide repertoire of operatic and vocal works, Nilsson was...
TV movie Model Behavior, which was released on 12 March 2000 in the USA. In the television show Our Hero, which ran from 2000 to 2002, Nilsson played the...
Marie Nilsson (born 20 February 1964) is a Swedish trade union leader. Born in Stenungsund, in 1982, Nilsson became a technician for the chemical company...
Molly Lilly Maria Nilsson (born 14 December 1984) is a Swedish singer-songwriter and musician. She is the owner of an independent record label, Dark Skies...
Christina Nilsson, Countess de Casa Miranda, also called Christine Nilsson (20 August 1843 – 22 November 1921) was a Swedish operatic dramatic coloratura...
Aurora Nilsson, also known as Rora Asim Khan (1 January 1894 – 1972), was a Swedish writer who became known for her autobiographical depiction, Flykten...
The Nordic model comprises the economic and social policies as well as typical cultural practices common in the Nordic countries (Denmark, Finland, Iceland...
was the first official Playmate of the Year. List of Playboy models, including all models who have appeared in Playboy List of Playboy Playmates of the...
webcam model (colloquially, camgirl, camboy, or cammodel) is a video performer who streams on the Internet with a live webcam broadcast. A webcam model often...
My Lisa Karolina Nilsson (born 13 August 1970) is a Swedish singer. She was discovered by the producer William (Billy) Butt and she is perhaps best known...
into Villa Villekulla: the house she shares with her monkey, named Mr. Nilsson, and her horse that is not named in the novels but called Lilla Gubben...
Polliani, and Swedish fashion stylist Jonas Hallberg. Nilsson, Linda-Marie (13 April 2016). "Nya "Top Model" söker efter kurviga tjejer". expressen.se (in Swedish)...
1966, Nilsson, along with Charles A. Rosen and Bertram Raphael, led a research team in the construction of Shakey, a robot that constructed a model of its...
Alex's younger brother Karen Hines as Monique, Janine's assistant Jesse Nilsson as Eric Singer, Mindy's boyfriend and Janine's love interest Cody Gifford...
2022. Nilsson (1967) Vol I, pp. 463–465 Pausanias 1.14,1: Nilsson (1967), Vol I, pp. 668–670 Pausanias I 42,6, Nilsson (1967), Vol I, p. 463 Nilsson (1967)...
Ebba Tove Elsa Nilsson (born 29 October 1987), known professionally as Tove Lo (Swedish pronunciation: [ˈtûːvɛ ˈluː]), is a Swedish singer and songwriter...
Rob Nilsson (born October 29, 1939) is a filmmaker, poet and painter, best known for his feature film Northern Lights, co-directed with John Hanson and...
ambulances. One company producing such models is Nilsson Special Vehicles, based in Laholm, Sweden. Ambulance models receive a completely new body from behind...
ISBN 978-3-12-539683-8 Burkert 1985, pp. 136–139. Seneca quaest. Nat. VI 6 :Nilsson Vol I p.450 Nilsson Vol I p.450 Hesiod, Theogony 456. Plato (1971). Timaeus and Critias...
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