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Cecilia Jarlskog (born in 1941) is a Swedish theoretical physicist, working mainly on elementary particle physics. Jarlskog obtained her doctorate in 1970 in theoretical particle physics at the Technical University of Lund.〔(Personal page at the Perimeter Institute for Theoretical Physics )〕〔(Personal page at Academia Europaea, Graz Information Centre )〕 She is known for her work on CP violation in the electroweak sector of the Standard Model, introducing what is known as the Jarlskog invariant,〔Jarlskog C. (Commutator of the Quark Mass Matrices in the Standard Electroweak Model and a Measure of Maximal CP Violation ) (1985) Physical Review Letters, 55, pp. 1039-1042.〕 and for her work on grand unified theories (see Georgi–Jarlskog mass relation).〔Georgi H., Jarlskog C. (A new lepton-quark mass relation in a unified theory ) (1979) Physics Letters B, 86 (3-4), pp. 297-300.〕 ==Research interests== She is mainly known for her study and expertise in theoretical particle physics, her studies include research on the ways that sub-atomic and electronic constituents of matter cohere or lose their symmetry, matter and antimatter asymmetry, mathematical physics, neutrino physics, and grand unification.〔(Doctor in Scientiis, Trinity College Dublin )〕 The Jarlskog invariant〔http://arxiv.org/abs/hep-ph/0104092〕 or rephasing-invariant CP violation parameter, is an invariant quantity in particle physics, which is in the order of ±2.8 x 10-5. It is expressed as J=±Im(VusVcbV∗ubV∗cs) and is used in elementary particle physics or in quantifying CP violations. It is one of Jarlskog's foremost contributions to physics, the other being the many years that she was an active member of CERN.〔(Speaker page of the 2011 Conference, Jyväskylä, Finland )〕 She recalls her appreciation of CERN’s (European Organization for Nuclear Research) international atmosphere. Being a part of this community gave her great opportunities to meet and talk with inspiring physicists from across the world. She noted that she felt fortunate to have 'lived in a period when the amount of information revealed about the nature of the elementary constituents of matter and their interactions has been mind-boggling'. At CERN, the European Organization for Nuclear Research, physicists and engineers probe the fundamental structure of the universe. The world's largest and most complex scientific instruments are employed to study the basic constituents of matter – fundamental particles. The particles are caused to collide at close to the speed of light, which affords physicists clues about the interactions of particles, and insights into the fundamental laws of nature. 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「Cecilia Jarlskog」の詳細全文を読む スポンサード リンク
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