AN ANALYSIS OF FOUR-ELEMENT MODELS OF LEPTONS AND NON-DIAGONAL NEUTRAL CURRENTS

  • Due to the possible production of neutral and charge heavy leptons by vμ, models consisting of four elements per "line", e.g. ve, e-, E0, E- vμ, μ-, M0, M- vτ, τ-, T0, T- ……are analysed. Non-diagonal neutral currents cannot be avoided. Nevertheless, a model is proposed within SU(2)×U(1) in which the process μ can still be suppressed by the Bjorken-Lane-Weinberg mechanism; various production cross-sections for heavy leptons are reasonable when compared with experiments. Models corresponding to SU(3)×U(1) and still higher symmetries are discussed.
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  • [1] B. C. Barish et al., Phys. Rev. Lett., 38 (1977), 577; A. Benvenuti et al., Phys. Rev. Lett., 38(1977), 1110;A. Benvenuti et al., Phys. Rev. Lett., 38 (1977), 1183.[2] R. M. Barnett and L. N. Chang, SLAG-PUB-1932 )May 1977);D. Horn and G. G. Roes,CALT-68-597 (1977);H. T. Nieh, Phys. Rev. Lett.,38 (1977), 1241.[3] 消息报导CERN Courier 17 (1977). 146.[4] P. Boaetti, et al., Phys. Rev. Lett., 38 (1977), 1248;B. Murtagh, Gordon Conf., (1976).[5] B. W. Lee and R. E. Shrock, FermiLab-PUB-77/21-THY (1977).[6] 8. Weinberg, Phys. Rev. Lett., 19 (1967),1264; 27 (1971), 1688;A. Salem, Elementary Particle Thery: Relativistic Groups and Analyticity, (Nobel Symposium No. 8), p. 367; S. L. Glashow, J. Iliopouloa and L. Maiani, Phys. Rev., D2 (1970), 1285.[7] S. L. Glashow and S. Weinberg, Phys. Rev., D15 (1977), 1958;M.8. Chanowitz, J. Ellis and M. K. Gaillard, CERN-Ref-TH, 2312.[8] R. M. Barnett, SLAC-PUB-1821, Phys. Rev., D15 (1977), 675.[9] M. Kobayashi and T. Maskawa, Prog. Theo. Phys., 49 (1973), 652.[10] T. P. Cheng and L. F. Li, Phys. Rev. Lett., 38 (1977), 381;J. Bjorken, k. Lane and S Weinberg, SLAC-PUB-1925 (Apr. 1977).[11] J. Bjorken and S. Weinberg, Phys. Rev. Lett., 38 (1977), 622.[12] G. J. Feldman et al., Phys. Rev. Lett., 38 (1977), 117.[13] M. L. Perl. SLAC-PUB-1923 (Apr. 1977).[14] B. W. Lee and S. Weinberg, Phys. Rev. Lett., 38 (1977), 1257.[15] D. S. Baranov et al., Serpukhov Inst. Hiqh. Energy Pbys., 77-30.
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WU DAN-DI, WU JING-YUAN and LI XIAO-YUAN. AN ANALYSIS OF FOUR-ELEMENT MODELS OF LEPTONS AND NON-DIAGONAL NEUTRAL CURRENTS[J]. Chinese Physics C, 1978, 2(1): 42-48.
WU DAN-DI, WU JING-YUAN and LI XIAO-YUAN. AN ANALYSIS OF FOUR-ELEMENT MODELS OF LEPTONS AND NON-DIAGONAL NEUTRAL CURRENTS[J]. Chinese Physics C, 1978, 2(1): 42-48. shu
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Received: 1977-07-14
Revised: 1900-01-01
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AN ANALYSIS OF FOUR-ELEMENT MODELS OF LEPTONS AND NON-DIAGONAL NEUTRAL CURRENTS

Abstract: Due to the possible production of neutral and charge heavy leptons by vμ, models consisting of four elements per "line", e.g. ve, e-, E0, E- vμ, μ-, M0, M- vτ, τ-, T0, T- ……are analysed. Non-diagonal neutral currents cannot be avoided. Nevertheless, a model is proposed within SU(2)×U(1) in which the process μ can still be suppressed by the Bjorken-Lane-Weinberg mechanism; various production cross-sections for heavy leptons are reasonable when compared with experiments. Models corresponding to SU(3)×U(1) and still higher symmetries are discussed.

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