UNIFIED ELECTRO-WEAK MODEL IN <EM>SU</EM> (3)

Zhou Guang-zhao; Gao Chong-shou

Chinese Physics C> 1980, Vol. 4> Issue(5) : 609-622

UNIFIED ELECTRO-WEAK MODEL IN SU (3)

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Abstract：
In this paper a unified electro-weak model for leptons based on the SU(3) gaugegroup is suggested by means of four kinds of realization for the generators of thegroup. For all low energy electro-weak processes, this model predicts the same resultsas the conventional Weinberg-Salam model does. The Weinberg angle is shown to be sin²θ_w=1/4 in a natural way. When the Higgs self potential respects a discrete symme-try Φ→-Φ, a new conserved quantum number called weak strangeness emerges fromthe model after spontaneous symmetry breaking. In the present model there existanother four heavy vector gauge bosons V^± and U^±± together with some heavyfermions and Higgs scalars, which have non vanishing weak strangeness quantumnumbers. These weak strange particles have no direct couplings with leptons. Theirexistence will not influence the low energy electro-weak processes. Nevertheless, theycan be produced in pairs in high energy collisions and the lightest of them should bestable if the conservation of weak strangeness is exact. The experimental implicationsand the possibility of violation of the conservation of weak strangeness are also dis-cussed.

References

[1]

S.Weinberg, Phys. Rev. Lett., 19 (1987), 1264. A. Salam. Elementary particle Theory. ed N.Svartholm (Stockholm, 1968).[2] 见1978年东京国际高能物理会议文集.[3] Y. Néeman, Phys. Lett., 81B(1979), 190.[4]D. B. Fairlie, Phys.Lett., 82B(1979), 97; E. J. Squires, Phys. Lett., 2B (1979), 359. J.G. Taylor, Phys. Lett., 83B (1979), 331;Phys. Lett., 84B (1979), 79; P. H. Dondi and P. D.Tarvis, Phys, Lett., 84B (1979), 75.

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Zhou Guang-zhao and Gao Chong-shou. UNIFIED ELECTRO-WEAK MODEL IN SU (3)[J]. Chinese Physics C, 1980, 4(5): 609-622.

Zhou Guang-zhao and Gao Chong-shou. UNIFIED ELECTRO-WEAK MODEL IN SU (3)[J]. Chinese Physics C, 1980, 4(5): 609-622. shu

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Received: 1979-08-31
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

UNIFIED ELECTRO-WEAK MODEL IN SU (3)

Received Date: 1979-08-31
Accepted Date: 1900-01-01
Available Online: 1980-10-05

Abstract: In this paper a unified electro-weak model for leptons based on the SU(3) gaugegroup is suggested by means of four kinds of realization for the generators of thegroup. For all low energy electro-weak processes, this model predicts the same resultsas the conventional Weinberg-Salam model does. The Weinberg angle is shown to be sin²θ_w=1/4 in a natural way. When the Higgs self potential respects a discrete symme-try Φ→-Φ, a new conserved quantum number called weak strangeness emerges fromthe model after spontaneous symmetry breaking. In the present model there existanother four heavy vector gauge bosons V^± and U^±± together with some heavyfermions and Higgs scalars, which have non vanishing weak strangeness quantumnumbers. These weak strange particles have no direct couplings with leptons. Theirexistence will not influence the low energy electro-weak processes. Nevertheless, theycan be produced in pairs in high energy collisions and the lightest of them should bestable if the conservation of weak strangeness is exact. The experimental implicationsand the possibility of violation of the conservation of weak strangeness are also dis-cussed.