Unified universal seesaw models

Peter Cho

doi:10.1103/PhysRevD.48.5331

Access by Xinjiang University

Unified universal seesaw models

Peter Cho

California Institute of Technology, Pasadena, California 91125

PDF

Phys. Rev. D 48, 5331 – Published 1 December, 1993

DOI: https://doi.org/10.1103/PhysRevD.48.5331

Abstract

A set of grand unified theories based upon the gauge groups SU(5 $)_{L}$ ×SU(5 $)_{R}$ , SO(10 $)_{L}$ ×SO(10 $)_{R}$ and SU(4 $)_{C}$ ×SU(4 $)_{L}$ ×SU(4 $)_{R}$ is explored. Several novel features distinguish these theories from the well-known SU(5), SO(10), and SU(4 $)_{C}$ ×SU(2 $)_{L}$ ×SU(2 $)_{R}$ models which they generalize. Firstly, standard model quarks and leptons are accompanied by and mix with heavy SU(2 $)_{L}$ ×SU(2 $)_{R}$ singlet partners. The resulting fermion mass matrices are seesaw in form. Discrete parity symmetries render the determinants of these mass matrices real and eliminate CP-violating gauge terms. The unified seesaw models consequently provide a possible resolution to the strong CP problem. Secondly, $\sin^{2}$ $θ_{W}$ at the unification scale is numerically smaller than the experimentally measured Z scale value. The weak angle must therefore increase as it evolves down in energy. Finally, proton decay is suppressed by small seesaw mixing factors in all these theories.

References (26)

M. Gell-Mann, P. Ramond, and R. Slansky, in Supergravity, Proceedings of the Workshop, Stony Brook, New York, 1979, edited by P. van Nieuwenhuizen and D. Freedman (North-Holland, Amsterdam, 1979), p. 315; T. Yanagida, Prog. Theor. Phys. B 135, 66 (1978).
S. Rajpoot, Phys. Lett. B 191, 122 (1987).
A. Davidson and K. C. Wali, Phys. Rev. Lett. 59, 393 (1987); ibid. 60, 1813 (1988).
K. S. Babu and R. N. Mohapatra, Phys. Rev. Lett. 62, 1079 (1989).
K. S. Babu and R. N. Mohapatra, Phys. Rev. D 41, 1286 (1990).
S. M. Barr, D. Chang and G. Senjanovic, Phys. Rev. Lett. 67, 2765 (1991).
H. Georgi and S. L. Glashow, Phys. Rev. Lett. 32, 438 (1974).
H. Georgi, in Particles and Fields, edited by C. E. Carlson, (AIP, New York, 1975), p. 595; H. Fritzsch and P. Minkowski, Ann. Phys. (N.Y.) 93, 193 (1975).
J. C. Pati and A. Salam, Phys. Rev. D 8, 1240 (1973); ibid. 10, 275 (1974).
Particle Data Group, K. Hikasa et al., Phys. Rev. D 45, S1 (1992).
A. Giveon, L. J. Hall and U. Sarid, Phys. Lett. B 271, 138 (1991).
S. Bethke, in Proceedings of the XXVIth International Conference on High Energy Physics, Dallas, Texas, 1992, edited by J. Sanford, AIP Conf. Proc. No. 272 (AIP, New York, 1993).
H. Georgi, Nucl. Phys. B156, 126 (1979).
A. Davidson and K. C. Wali, Phys. Rev. Lett. 58, 2623 (1987).
P. Cho and S. Glashow (unpublished).
H. Georgi, H. R. Quinn and S. Weinberg, Phys. Rev. Lett. 33, 451 (1974).
S. Dawson and H. Georgi, Phys. Rev. Lett. 43, 821 (1979).
H. Georgi (private communication).
G. Beall, M. Bander and A. Soni, Phys. Rev. Lett. 48, 848 (1982).
G. Ecker and W. Grimus, Nucl. Phys. B258, 328 (1985).
N. G. Deshpande and R. J. Johnson, Phys. Rev. D 27, 1193 (1983).
A. De Rújula, H. Georgi, and S. L. Glashow, in Fifth Workshop on Grand Unification, edited by K. Kung, H. Fried, and P. Frampton (World Scientific, Singapore, 1984), p. 88.
E. D. Carlson and M. Y. Wang, in Proceedings of the XXVIth International Conference on High Energy Physics [12], p. 1432.
C. D. Froggart and H. B. Nielson, Nucl. Phys. B147, 277 (1979).
Z. G. Berezhiani, Phys. Lett. 129B, 99 (1983); ibid. 150B, 177 (1985).
Z. G. Berezhiani and R. Rattazzi, Phys. Lett. B 279, 124 (1992).

[c1] M. Gell-Mann, P. Ramond, and R. Slansky, in Supergravity, Proceedings of the Workshop, Stony Brook, New York, 1979, edited by P. van Nieuwenhuizen and D. Freedman (North-Holland, Amsterdam, 1979), p. 315; T. Yanagida, Prog. Theor. Phys. B 135, 66 (1978).

[c2] S. Rajpoot, Phys. Lett. B 191, 122 (1987).

[c3] A. Davidson and K. C. Wali, Phys. Rev. Lett. 59, 393 (1987); ibid. 60, 1813 (1988).

[c4] K. S. Babu and R. N. Mohapatra, Phys. Rev. Lett. 62, 1079 (1989).

[c5] K. S. Babu and R. N. Mohapatra, Phys. Rev. D 41, 1286 (1990).

[c6] S. M. Barr, D. Chang and G. Senjanovic, Phys. Rev. Lett. 67, 2765 (1991).

[c7] H. Georgi and S. L. Glashow, Phys. Rev. Lett. 32, 438 (1974).

[c8] H. Georgi, in Particles and Fields, edited by C. E. Carlson, (AIP, New York, 1975), p. 595; H. Fritzsch and P. Minkowski, Ann. Phys. (N.Y.) 93, 193 (1975).

[c9] J. C. Pati and A. Salam, Phys. Rev. D 8, 1240 (1973); ibid. 10, 275 (1974).

[c10] Particle Data Group, K. Hikasa et al., Phys. Rev. D 45, S1 (1992).

[c11] A. Giveon, L. J. Hall and U. Sarid, Phys. Lett. B 271, 138 (1991).

[c12] S. Bethke, in Proceedings of the XXVIth International Conference on High Energy Physics, Dallas, Texas, 1992, edited by J. Sanford, AIP Conf. Proc. No. 272 (AIP, New York, 1993).

[c13] H. Georgi, Nucl. Phys. B156, 126 (1979).

[c14] A. Davidson and K. C. Wali, Phys. Rev. Lett. 58, 2623 (1987).

[c15] P. Cho and S. Glashow (unpublished).

[c16] H. Georgi, H. R. Quinn and S. Weinberg, Phys. Rev. Lett. 33, 451 (1974).

[c17] S. Dawson and H. Georgi, Phys. Rev. Lett. 43, 821 (1979).

[c18] H. Georgi (private communication).

[c19] G. Beall, M. Bander and A. Soni, Phys. Rev. Lett. 48, 848 (1982).

[c20] G. Ecker and W. Grimus, Nucl. Phys. B258, 328 (1985).

[c21] N. G. Deshpande and R. J. Johnson, Phys. Rev. D 27, 1193 (1983).

[c22] A. De Rújula, H. Georgi, and S. L. Glashow, in Fifth Workshop on Grand Unification, edited by K. Kung, H. Fried, and P. Frampton (World Scientific, Singapore, 1984), p. 88.

[c23] E. D. Carlson and M. Y. Wang, in Proceedings of the XXVIth International Conference on High Energy Physics [12], p. 1432.

[c24] C. D. Froggart and H. B. Nielson, Nucl. Phys. B147, 277 (1979).

[c25] Z. G. Berezhiani, Phys. Lett. 129B, 99 (1983); ibid. 150B, 177 (1985).

[c26] Z. G. Berezhiani and R. Rattazzi, Phys. Lett. B 279, 124 (1992).

Physical Review D

Export citation

Export citation

Unified universal seesaw models

Abstract

References (26)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation