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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Gaugino condensation ： ウィキペディア英語版 Gaugino condensation In particle physics, gaugino condensation is the nonzero vacuum expectation value in some models of a bilinear expression constructed in theories with supersymmetry from the superpartner of a gauge boson called the gaugino. The gaugino and the bosonic gauge field and the D-term are all components of a supersymmetric vector superfield in the Wess-Zumino gauge. :$\backslash langle\; \backslash lambda^a\_\backslash alpha\; \backslash lambda^b\_\backslash beta\backslash rangle\; \backslash sim\; \backslash delta^\backslash epsilon\_\backslash Lambda^3$ where $\backslash lambda$ represents the gaugino field (a spinor) and $\backslash Lambda$ is an energy scale, a and b represent Lie algebra indices and α and β represent van der Waerden (two component spinor) indices. The mechanism is somewhat analogous to chiral symmetry breaking and is an example of a fermionic condensate. In the superfield notation, $W\_\backslash alpha\; \backslash equiv\; \backslash overline^2\; D\_\backslash alpha\; V$ is the gauge field strength and is a chiral superfield. :$\backslash langle\; W^a\_\backslash alpha\; W^b\_\backslash beta\; \backslash rangle\; =\; \backslash langle\; \backslash lambda^a\_\backslash alpha\; \backslash lambda^b\_\backslash beta\backslash rangle\; \backslash sim\; \backslash delta^\backslash epsilon\_\backslash Lambda^3$ $W\_\backslash alpha\; W\_\backslash beta$ is also a chiral superfield and we see that what acquires a nonzero VEV is not the F-term of this chiral superfield. Because of this, gaugino condensation in and of itself does not lead to supersymmetry breaking. If we also have supersymmetry breaking, it is caused by something other than the gaugino condensate. However, a gaugino condensate definitely breaks U(1)R symmetry as $\backslash lambda^a\_\backslash alpha\; \backslash lambda^b\_\backslash beta$ has an R-charge of 2. ==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「Gaugino condensation」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.