Model Based on Gauge Symmetry Group G = Gsub(Wk) X (SU(3) X SU(3))sub(C)

摘要

The authors formulate a gauge model for basic interactions based on the symmetry group G = Gsub(Wk) x Gsub(c), where Gsub(c) is the chiral symmetry group (SU(3) x SU(3))sub(c) in colour space. Gsub(Wk) is taken to be the left-right symmetric model SUsub(L)(2) x SUsub(R)(2) x U(1). The chiral colour symmetry is spontaneously broken in such a way that quarks acquire a common mass, an octet of axial gluons become massive but an octet of vector gluons remain massless. In this way quark mass arises from spontaneous colour chiral symmetry breaking. The experimental consequences of the left-right symmetric model are discussed and it is shown that one version of this model gives results similar to the Salam-Weinberg model for the presently available energies. There is also another version, where the results are again similar to the Salam-Weinberg model except that the y dependence for the asymmetry parameter for the deep inelastic scattering of polarized electrons is completely different although its value at y = 0.21 is compatible with experiment. (Atomindex citation 13:662316)