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Prog. Theor. Phys. Vol. 91 No. 5 (1994) pp. 915-926

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Neutron Electric Dipole Moment in Two Higgs Doublet Model

Takemi Hayashi, Yoshio Koide,* Masahisa Matsuda** and Morimitsu Tanimoto***

Kogakkan University, Ise 516
*Department of Physics, University of Shizuoka, Shizuoka 422
**Department of Physics and Astronomy, Aichi University of Education, Kariya 448
***Science Education Laboratory, Ehime University, Matsuyama 790

(Received January 5, 1994)

Abstract:

We study the effect of the “chromo-electric” dipole moment on the electric dipole moment (EDM) of the neutron in the two Higgs doublet model. We systematically investigate Weinberg's operator O3g = GG\tildeG and the operator Oqg = qσ\tildeGq, in the cases tan β≫1, tan β≪1 and tan β≃1. It is shown that Osg gives the main contribution to the neutron EDM compared to the other operators, and also that the contributions of Oug and O3g cancel out each other. It is pointed out that the inclusion of second lightest neutral Higgs scalar adding to the lightest one is of essential importance to estimate the neutron EDM. The neutron EDM is considerably reduced due to the destructive contribution with each other if the mass difference of the two Higgs scalars is of the order O(50 GeV).


URL : http://ptp.ipap.jp/link?PTP/91/915/
DOI : 10.1143/PTP.91.915

[ Full Text PDF : FREE ACCESS (1107K) ] Citation:

References:

  1. M. Kobayashi and T. Maskawa, Prog. Theor. Phys. 49 (1973), 652[PTP].
  2. S. Weinberg, Phys. Rev. Lett. 63 (1989), 2333[APS].
  3. J. F. Gunion and D. Wyler, Phys. Lett. 248B (1990), 170.
  4. A. De Rújula, M. B. Gavela, O. Pène and F. J. Vegas, Phys. Lett. 245B (1990), 640.
    N.-P. Chang and D.-X. Li, Phys. Rev. D42 (1990), 871[APS].
    D. Chang, T. W. Kephart, W-Y. Keung and T. C. Yuan, Phys. Rev. Lett. 68 (1992), 439[APS].
    M. J. Booth and G. Jungman, Phys. Rev. D47 (1993), R4828[APS].
  5. S. M. Barr and A. Zee, Phys. Rev. Lett. 65 (1990), 21[APS].
    S. M. Barr, Phys. Rev. Lett. 68 (1992), 1822[APS]; Phys. Rev. D47 (1993), 2025[APS].
  6. For a text of Higgs physics see J. F. Gunion, H. E. Haber, G. L. Kane and S. Dawson, Higgs Hunter's Guide (Addison-Wesley, Reading, MA, 1989).
  7. A. Manohar and H. Georgi, Nucl. Phys. B234 (1984), 189.
  8. M. Chemtob, Phys. Rev. D45 (1992), 1649[APS].
  9. S. Weinberg, Phys. Rev. D42 (1990), 860[APS].
  10. M. Chemtob, Z. Phys. C60 (1993), 443.
  11. M. A. Luty, Phys. Rev. D41 (1990), 2893[APS].
    C. D. Froggatt, I. G. Knowles and R. G. Moorhouse, Phys. Lett. 249B (1990), 273; Nucl. Phys. B386 (1992), 63.
  12. T. Hayashi, M. Matsuda and M. Tanimoto, Prog. Theor. Phys. 89 (1993), 1047[PTP].
    A. J. Davies, T. Hayashi, M. Matsuda and M. Tanimoto, Preprint AUE-02-93 (1993).
  13. E. Thorndike (CLEO Collabo.), Talk given at the Meeting of the American Physical Society, Washington, D. C., 1993.
    R. Ammar et al., CLEO Collaboration, Phys. Rev. Lett. 71 (1993), 674[APS].
  14. X-G. He, B. H. J. Mckellar and S. Pakvasa, Mod. Phys. A4 (1989), 5011; Phys. Lett. 252B (1991), 231.
    I. I. Bigi and N. G. Uraltsev, Nucl. Phys. B353 (1991), 321.
    X.-G. He, B. H. J. Mckellar, Phys. Rev. D46 (1992), 2131[APS].
  15. D. A. Dicus, Phys. Rev. D41 (1990), 999[APS].
    D. Chang, W-Y. Keung and T. C. Yuan, Phys. Lett. 251B (1990), 608.
  16. Particle Data Group, Phys. Rev. D45 (1992), II-1.

Citing Article(s) :

  1. Progress of Theoretical Physics Supplement No.123 (1996) pp. 265-173 :
    CP Violation in the Higgs Sector of the Next-to-MSSM and Electric Dipole Moments
    Naoyuki Haba, Masahisa Matsuda and Morimitsu Tanimoto

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