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:''This article is about Ann Elizabeth Nelson the physicist, not actress Ann Nelson who played Mrs. Berg on'' Fame (1982 TV series). Ann Elizabeth Nelson (born 1958) is a particle physicist at the University of Washington. She was a student of Howard Georgi and has been a member of the university's Particle Theory Group since 1994. She and her collaborators are known for a number of theories, including the theory of spontaneous violation of CP (charge conjugation and parity symmetry), which may explain the origin of the asymmetry observed between matter and anti-matter; the theory of Bose-Einstein condensation of kaon mesons in dense matter, which predicts strangeness in neutron stars; the basic mechanism for electroweak baryogenesis which may explain the origin of matter in the universe; the theory of gauge mediated supersymmetry breaking to account for how supersymmetry at short distances might be compatible with the absence of observed flavor symmetry violation at long distances; the Little Higgs theory which may explain why the Higgs boson must be relatively light; and the theory of "accelerons" which relates neutrino masses to the cosmological dark energy responsible for the relatively recent acceleration of the expansion of the universe. Ann Nelson received a Guggenheim Fellowship in 2004, and was elected to the American Academy of Arts and Sciences in 2011 and the National Academy of Sciences in 2012. ==External links== *(MSNBC ) *(Phys.org ) *(Ann Nelson's home page ) *(UW Professor elected member of American Academy of Arts and Sciences ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ann Nelson」の詳細全文を読む スポンサード リンク
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