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Prog. Theor. Phys. Vol. 76 No. 4 (1986) pp. 915-927

Extra U(1) Phenomenology from the E₈ ×E₈ Superstring Theory

Takeo Matsuoka, Hidetoshi Mino, Daijiro Suematsu and Shuji Watanabe

Department of Physics, Nagoya University, Nagoya 464

(Received June 26, 1986)

Abstract:

The low energy phenomenology of the extra U(1) model arising from the E₈ ×E₈ superstring theory is studied. In the extra U(1) model with an intermediate scale, specific extra U(1) charge assignments are required from proton stability and fermion mass spectra. Masses of two Z bosons and a mixing angle are constrained by the recent experimental data in pp collision, in e⁺e^- annihilation and in neutrino scattering. The extra U(1) model explains observed values of R_ν=σ_NC(ν) / σ_CC(ν) and A_FB (e⁺e^- →µ⁺µ^-) successfully but the standard model does not. It is also found that the extra U(1) model based on the grand desert scenario is phenomenologically unfavorable.

URL : http://ptp.ipap.jp/link?PTP/76/915/
DOI : 10.1143/PTP.76.915

[ Full Text PDF : FREE ACCESS (607K) ] Citation: Plain Text BiBTeX EndNote(RIS) RSS

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References:

1. M. B. Green and J. H. Schwartz, Phys. Lett. 149B (1984), 117; ibid. 151B (1985), 21.
2. D. J. Gross, J. A. Harvey, E. Martinec and R. Rohm, Phys. Rev. Lett. 54 (1985), 502[APS]; Nucl. Phys. B256 (1985), 253[Elsevier].
3. P. Candelas, G. T. Horowitz, A. Strominger and E. Witten, Nucl. Phys. B258 (1985), 46[Elsevier].
4. J. D. Breit, B. A. Ovrut and G. C. Segrè, Phys. Lett. 158B (1985), 33.
5. M. Dine, V. Kaplunovsky, M. Mangano, C. Nappi and N. Seiberg, Nucl. Phys. B259 (1985), 549[Elsevier].
6. T. Matsuoka and D. Suematsu., Nucl. Phys. B274 (1986), 106[Elsevier]; Prog. Theor. Phys. 76 (1986), 886[PTP].
7. T. Matsuoka and D. Suematsu, Prog. Theor. Phys. 76 (1986), 901[PTP].
8. K. Choi and J. E. Kim, Phys. Lett. 165B (1985), 71.
9. B. Holdom, Phys. Lett. 166B (1986), 196.
10. UA1 Collab., G. Arnison et al., Phys. Lett. 166B (1986), 484.
11. H. Abramowicz et al., CERN EP/ 86-38 (1986).
12. A. Sirlin and W. J. Marciano, Nucl. Phys. B189 (1981), 442[Elsevier].
13. T. Matsuoka, H. Mino and S. Watanabe, Nagoya Univ. Preprint, DPNU-85-34 (1985).
14. UA1 Collab., Talk given by C. Rubbia, Proceedings of 1985 International Conference on Lepton and Photon Interactions at High Energies (1985), p. 242.
15. Mark-J Collab., B. Adeva et al, Phys. Rev. Lett. 55 (1985), 665[APS].
16. JADE Collab., W. Bartel et al., Z. Phys. C26 (1985), 507.
17. W. Lynn and R. G. Stuart, Nucl. Phys. B253 (1985), 216[Elsevier].
18. S. M. Barr, Phys. Rev. Lett. 55 (1985), 2778[APS].
    E. Cohen, J. Ellis, E. Enqvist and D. V. Nanopoulos, Phys. Lett. 165B (1985), 76.
    V. Barger, N. G. Desphande and K. Whisnant, Phys. Rev. Lett. 56 (1986), 30[APS].
    L. S. Durkin and P. Langacker, Phys. Lett. 166B (1986), 436.
19. T. Matsuoka, H. Mino, D. Suematsu and S. Watanabe, in preparation.

Citing Article(s) :

1. Progress of Theoretical Physics Vol. 76 No. 4 (1986) pp. 886-900 :

   Realistic Models from the E₈ ×E₈' Superstring Theory

   Takeo Matsuoka and Daijiro Suematsu

2. Progress of Theoretical Physics Vol. 76 No. 4 (1986) pp. 901-914 :

   Low-Energy Gauge Interactions from the E₈ ×E₈' Superstring Theory

   Takeo Matsuoka and Daijiro Suematsu

3. Progress of Theoretical Physics Vol. 79 No. 1 (1988) pp. 159-173 :

   Asymmetries in the Single Smuon Production e⁺e^- →µ⁺\tildeγ\tildeµ^-

   Tadashi Kon

4. Progress of Theoretical Physics Vol. 79 No. 2 (1988) pp. 502-518 :

   Superstring Inspired Models and the Top Quark Mass

   Nobuhiro Nakamura, Isao Umemura and Katsuji Yamamoto

5. Progress of Theoretical Physics Vol. 86 No. 3 (1991) pp. 725-743 :

   Chargino and Neutralino Mass Spectra in Superstring-Inspired E₆ Model with R-Parity Violation

   Chuichiro Hattori, Masahisa Matsuda, Takeo Matsuoka and Daizo Mochinaga

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