Skip to main content
Log in

Comments on grand unification and an alternative approach to unification of quarks and leptons

  • Published:
Il Nuovo Cimento A (1965-1970)

Summary

Some of the original motivations behind grand unified theories are re-examined in the light of our present understanding of the standard model. We argue that there is no experimental evidence which uniquely implies grand unification. We then give an example of a non-GUT model which unifies quark and leptons.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. H. Georgi andS. L. Glashow:Phys. Rev. Lett.,32, 438 (1974);H. Georgi, H. Quinn andS. Weinberg:Phys. Rev. Lett.,33, 451 (1974); See alsoJ. Pati andA. Salam:Phys. Rev. D,10, 275 (1974).

    Article  ADS  Google Scholar 

  2. A. J. Buras, J. Ellis, M. K. Gaillard andD. V. Nanopoulos:Nucl. Phys. B,135, 66 (1978);E. Gildener:Phys. Rev. D,14, 1667 (1976);Phys. Lett. B,92, 111 (1980);S. Weinberg:Phys. Lett. B,82, 387 (1979).

    Article  ADS  Google Scholar 

  3. R. Foot, G. C. Joshi, H. Lew andR. R. Volkas:Mod. Phys. Lett. A,5, 95 (1990);N. G. Deshpande: preprint OITS107, January 1979 (unpublished).

    Article  ADS  Google Scholar 

  4. A. M. Polyakov:JETP Lett.,20, 194 (1974);G. ’t Hooft:Nucl. Phys. B,79, 276 (1974).

    ADS  Google Scholar 

  5. U. Amaldi et al.:Phys. Rev. D,36, 1385 (1987).

    Article  ADS  Google Scholar 

  6. H. Georgi:Nature,288, 649 (1980).

    Article  ADS  Google Scholar 

  7. R. Foot:Phys. Rev. D,40, 3136 (1989);R. Foot andO. F. Hernández:Phys. Rev. D,41, 3502 (1990).

    Article  ADS  Google Scholar 

  8. G. ’t Hooft:Phys. Rev. Lett.,37, 8 (1976).

    Article  ADS  Google Scholar 

  9. See, for example,L. McLerran:Phys. Rev. Lett.,62, 1075 (1989).

    Article  ADS  Google Scholar 

  10. R. Foot andH. Lew:Phys. Rev. D,41, 3502 (1990).

    Article  ADS  Google Scholar 

  11. J. C. Pati andA. Salam:Phys. Rev. D,10, 275 (1974);R. N. Mohapatra andJ. C. Pati:Phys. Rev. D,11, 566, 2558 (1975);G. Senjanovic andR. N. Mohapatra:Phys. Rev. D,12, 1502 (1975).

    Article  ADS  Google Scholar 

  12. K. S. Babu andR. N. Mohapatra:Phys. Rev. Lett.,63, 938 (1989).

    Article  ADS  Google Scholar 

  13. M. J. Savage: private communication.

  14. R. E. Marshak:Pramana-J. Phys.,31, 9 (1988) and preprint VPI-HEP-87/1 (1987).

    Article  ADS  Google Scholar 

  15. R. N. Mohapatra andG. Senjanovic:Phys. Rev. D,23, 165 (1981).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Foot, R., Lew, H. Comments on grand unification and an alternative approach to unification of quarks and leptons. Nuov Cim A 104, 167–175 (1991). https://doi.org/10.1007/BF02910875

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02910875

Keyword

Keyword

Keyword

Navigation