非相对论相空间的Clifford代数与质量概念
Clifford Algebra of Nonrelativistic Phase Space and the Concept of Mass
摘要:
最近的一个证明表明,单夸克-轻子代的结构可以通过p^2+x^2形式的狄拉克线性化来理解,在此基础上,我们详细分析了相应的克利福德代数。在根据U(1)× SU(3)和SU(2)变换性质对该代数的所有元素进行分类后,我们确定了可能与轻子质量概念相联系的元素。这个元素然后被转换成一个对应于单色夸克的元素。结果表明,虽然没有三个这样得到的个别夸克质量元素是旋转不变的-夸克质量项的旋转不变性恢复时,夸克颜色的总和进行。
英文摘要:
Prompted by a recent demonstration that the structure of a single quark-lepton generation may be understood via a Dirac-like linearization of the form p^2+x^2, we analyze the corresponding Clifford algebra in some detail. After classifying all elements of this algebra according to their U(1) x SU(3) and SU(2) transformation properties, we identify the element which might be associated with the concept of lepton mass. This element is then transformed into a corresponding element for a single coloured quark. It is shown that - although none of the three thus obtained individual quark mass elements is rotationally invariant - the rotational invariance of the quark mass term is restored when the sum over quark colours is performed.
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