DISCUSSION OF A SU(2)×U(1)×S3 MODEL WITH TWO HIGGS DOUBLETS AND CALCULATION OF CABIBBO-LIKE-PARAMETERS

MA ZHONG-QI; DONG FANG-XIAO; YUE ZONG-WU; ZHOU XIAN-JIAN; XUE PEI-YOU

Chinese Physics C> 1981, Vol. 5> Issue(3) : 298-306

DISCUSSION OF A SU(2)×U(1)×S₃ MODEL WITH TWO HIGGS DOUBLETS AND CALCULATION OF CABIBBO-LIKE-PARAMETERS

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Abstract：
In this paper a SU(2)×U(1)×S₃ model with two Higgs doublets is discussed in detail. It is shown that besides the case discussed by Segre et al., there is another physically interesting case. We investigate the latter in detail. In This case, taking the quark masses and the Cabibbo angle θ₁ as input parameters, we can obtain Cabibbo angles θ₂ and θ₃ which have the same order of magnitude as θ₁. Finally the appearance of a pseudo Goldstone boson in the model is discussed, a method to overcome the difficulty is given, and the physical results of this case which do not contradict with the experiments are discussed.

References

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S. Weinberg, Phys. Rev. Lett., 19(1967)., 1864, A. Salam, in Elementary Particle Phyeice, edited by N. Svarthohn (Almquiet and Wikaells, Stockholm, 1968).[2] S. Pakvasa and H. Sugawara, Phys. Lett., 73B(1978), 497.[3] G. Segr6 and H. A. Weldon, Phys. Rev. Lett.,42(1979),1191.[4] G. Begrb et al. Phys. Lett., 83B(1979), 381.[5] E. Derman. Phys. Rev., D19(1979), 317.[6] H. Sato, Nucl. Phys., 148B(1979), 433, Tokyo Univ, preprints UT-299 and UT-311, (1978).[7] Wu Dan-di, Phys. Lett., 85B(1979), 384.[8] M. ga,baysehi and K. Maskawa, Prog. Theor. Phys., 49(1973), 652.[9] T. D. Lee, Phys. Rev., D8(1973), 1226, Phys. Rep.,90(1974), 143.[10] S. Weinberg, Phys. Rev. Lett., 37(1976), 657.[11] S. Wein}berg, Harvard Univ. Preprint HUTP-78/A005, (1978).[12] D. Cotta et al., Phys. Rev. Lett., 41(1978), 363.[13] J. Ellia, SLAG-PUB-2177 (1978).[14] L. F. Abbott et al., SLAC-PUB-2351 (1979).[15] J.Ellis, 9LAC-PiTB"2L77 (1978).[16] D.v. Nanopoulos et al., Phys. Lett., 87B(1979), 53.[17] A.B. Lahanas and C.E.Vayonakis, Phys. Rev., D19(1979), 2158.[18] N. F. Ramsey, in Neutrino- 75,Proceeding of the Fifth International Conf, on Neutrino Science, Balatoa, liungray, 1975, edited by A. Frenkel and G. Mara, Vol. I, p. 307.[19] B. W. Lee and R. E. Shrock, Phys. Rev., D16(1977), 1444.[20] M. D. Cooper, BLAC-215(1978).

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MA ZHONG-QI, DONG FANG-XIAO, YUE ZONG-WU, ZHOU XIAN-JIAN and XUE PEI-YOU. DISCUSSION OF A SU(2)×U(1)×S₃ MODEL WITH TWO HIGGS DOUBLETS AND CALCULATION OF CABIBBO-LIKE-PARAMETERS[J]. Chinese Physics C, 1981, 5(3): 298-306.

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Received: 1980-01-28
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

DISCUSSION OF A SU(2)×U(1)×S₃ MODEL WITH TWO HIGGS DOUBLETS AND CALCULATION OF CABIBBO-LIKE-PARAMETERS

Received Date: 1980-01-28
Accepted Date: 1900-01-01
Available Online: 1981-06-05

Abstract: In this paper a SU(2)×U(1)×S₃ model with two Higgs doublets is discussed in detail. It is shown that besides the case discussed by Segre et al., there is another physically interesting case. We investigate the latter in detail. In This case, taking the quark masses and the Cabibbo angle θ₁ as input parameters, we can obtain Cabibbo angles θ₂ and θ₃ which have the same order of magnitude as θ₁. Finally the appearance of a pseudo Goldstone boson in the model is discussed, a method to overcome the difficulty is given, and the physical results of this case which do not contradict with the experiments are discussed.