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In cosmology and theoretical physics the ELKO field is a dark matter candidate. The ELKO field was originally suggested in 2005 by D. V. Ahluwalia (then, under the name Ahluwalia-Khalilova) and D. Grumiller.〔D.V. Ahluwalia and D. Grumiller. Spin-Half Fermions with Mass Dimension One: Theory, Phenomenology, and Dark Matter. Journal of Cosmology and Astroparticle Physics, 2005:012, 2005.〕 The name comes from the acronym of the original German term ''Eigenspinoren des LadungsKonjugationsOperators'', designating spinors that are eigenspinors of the charge conjugation operator. ELKO quantum fields fields describe spin-1/2 fermions with mass dimension one. Since the field has a mass dimensionality mismatch with standard model matter fields it was suggested as a dark matter candidate.〔D.V. Ahluwalia, C.Y. Lee, D. Schritt, and T.F. Watson. Local Fermionic Dark Matter with Mass Dimension One. Arxiv preprint arXiv:0804.1854v4, 2008〕 As a result of their scalar-like mass dimension they differ significantly from the mass dimension 3/2 Dirac fermions.〔M. Dias, F. de Campos, J. M. Hoff da Silva. Exploring Elko typical signature. Physics Letters B, 706 (2012) 352. DOI:10.1016/j.physletb.2011.11.030〕 An up-to-date reference is a 2013 preprint.〔D. V. Ahluwalia. On a local mass dimension one Fermi field of spin one-half and the theoretical crevice that allows it. http://arxiv.org/abs/arXiv:1305.7509〕 ==References== 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「ELKO field」の詳細全文を読む スポンサード リンク
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