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Color–flavor locking : ウィキペディア英語版
Color–flavor locking
Color–flavor locking (CFL) is a phenomenon that is expected to occur in ultra-high-density strange matter, a form of quark matter. The quarks form Cooper pairs, whose color properties are correlated with their flavor properties in a one-to-one correspondence between three color pairs and three flavor pairs. According to the Standard Model of particle physics, the color-flavor-locked phase is the highest-density phase of three-flavor matter.〔

==Color-flavor-locked Cooper pairing==

If each quark is represented as \psi^\alpha_i, with color index \alpha taking values 1, 2, 3 corresponding to red, green, and blue, and flavor index i taking values 1, 2, 3 corresponding to up, down, and strange, then the color-flavor-locked pattern of Cooper pairing is 〔

:\langle \psi^\alpha_i C \gamma_5 \psi^\beta_j \rangle
\propto \delta^\alpha_i\delta^\beta_j - \delta^\alpha_j\delta^\beta_i
= \epsilon^\epsilon_

This means that a Cooper pair of an up quark and a down quark must have colors red and green, and so on. This pairing pattern is special because it leaves a large unbroken symmetry group.

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「Color–flavor locking」の詳細全文を読む



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