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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 SU(6) (physics) ： ウィキペディア英語版 SU(6) (physics) SU(6) is a grand unified theory which includes the Georgi–Glashow SU(5) gauge group. The fermionic matter content of this model comes in three generations (copies) of :$15\backslash oplus\; \backslash bar\backslash oplus\; \backslash bar$ as SU(6) representations. This gauge group is broken down to the Georgi–Glashow model by a pair of 6H/$\backslash bar\_H$ Higgs fields. :$SU(6)\backslash begin6\_H/\backslash bar\_H\backslash \backslash \; \backslash longrightarrow\; \backslash end\; SU(5)\backslash times\; U(1)$ The fermions decompose as :$15\backslash rightarrow\; 10\backslash oplus\; 5$ :$\backslash bar\backslash rightarrow\; \backslash bar\backslash oplus\; 1$ The Yukawa coupling $\backslash bar\; \backslash bar\_H\; 15$ causes 5 and a $\backslash bar$ SU(5)-rep of fermions to pair up and acquire GUT scale masses for each generation. An adjoint Higgs 35H breaks the model down further to the standard model. Most important, SU(6) is also used as a classification group for baryons and mesons. In fact it takes in account both SU(3) flavour and SU(2) spin. Then, quarks u,d,s, with spin up and down belong to the fundamental representation 6. Mesons belong to the 35 representation and baryons to the 56 representation obtained from the product quark-antiquark and quark-quark-quark, respectively. Recently, a new type of grand unified theories based on SU(6) group has been proposed to realize a unification of strong and electroweak interactions.〔A. Hartanto and L.T. Handoko, Grand Unified Theory based on the SU(6) symmetry, ''(Physical Review D71 (2005) 095013 )''〕 The work provides a complete form of 35 generators in SU(6) group. == 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「SU(6) (physics)」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.