Summary
We show that a supersymmetricSU(5) grand unified model with four light Higgs doublets, a light colour octet, an electroweak triplet and two singlets predicts the correct value of sin2θw. Moreover it is possible to obtain the ratios mb (mb)/mΤ and ms(l GeV)/mΜ in agreement with experiments provided the Yukawa coupling constants for the second generations are relatively big.
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References
H. Georgi andS. L. Glashow:Phys. Rev. Lett.,32, 438 (1974).
U. Amaldi et al.:Phys. Rev. D,36, 1385 (1987);G. Costa et al.: Nucl. Phys. B,297, 1 (1988).
S. Dimopoulos, S. Raby andF. Wilczek:Phys. Rev. D,24, 1681 (1981).
M. B. Einhorn andD. R. T. Jones:Nucl. Phys. B,196, 475 (1982).
seeH. P. Nilles:Phys. Rep. C,110, 3 (1984).
P. H. Frampton andS. L. Glashow:Phys. Lett. B,131, 340 (1983).
U. Amaldi et al.:Phys. Lett. B,281, 374 (1992).
N. V. Krashnikov: LAPP preprint A-420/93 (1993).
P. Langacker:Phys. Rep. C,72, 3 (1981).
D. R. T. Jones: inTasi Lectures on Elementary Particle Physics, edited by D. N. Williams (Tasi Publications, Ann Arbor, Mich., 1984).
J. Ellis andM. K. Gaillard:Phys. Lett. B,88, 315 (1979).
H. Georgi andJ. Jarlskog:Phys. Lett. B,86, 297 (1979).
N. V. Krasnikov:Phys. Lett. B,302, 59 (1993).
B. Grinstein:Nucl. Phys. B,206, 387 (1982);A. Masiero, D. V. Nanopoulos, T. Tamvakis andT. Yanagida:Phys. Lett. B,115, 380 (1982).
R. Tanaka: talk given at theXXVI International Conference on High Energy Physics,Dallas, August 6–12 1992, Ecole Polytechnique preprint X-LPNHE/91-3.
W. A. Bardeen, A. Buras, D. Duke andT. Muta:Phys. Rev. D,18, 3998 (1978).
Review of Particle Properties:Phys. Rev. D,45, 8.1-8.7 (1992).
J. Minihan:Nucl Phys. B,298, 36 (1988);V. Kaplunovsky:Nucl Phys. B,307, 145 (1988).
N. V. Krasnikov:Phys. Lett. B,276, 127 (1992).
M. E. Machaecek andM. T. Vaughn:Nucl. Phys. B,222, 83 (1983);236, 221 (1984).
J. E. Björkman andD. R. T. Jones:Nucl. Phys. B,259, 533 (1985).
J. Grasser andH. Leutwyler:Phys. Rep. C,87, 77 (1982).
A. L. Kataev, N. V. Krasnikov andA. A. Pivovarov:Phys. Lett. B,123, 93 (1983).
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Krasnikov, N., Kreyerhoff, G. & Rodenberg, R. SupersymmetricSU(5) model with four light Higgs doublets. Nuov Cim A 107, 589–596 (1994). https://doi.org/10.1007/BF02768793
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DOI: https://doi.org/10.1007/BF02768793