Abstract
The properties of matter at the atomic level are expressed in terms of a few fundamental constants, while, going down to the level subnuclear constituents, the present theoretical description requires the introduction of a large number of independent parameters. The main goal of elementary particle physics is to arrive at a complete theory which describes all subnuclear phenomena in terms of a unified interaction with the least number of fundamental constants. We discuss the lines of research in this field, which are mainly based on the implementation of higher symmetries. Grand Unified Theories unify the couplings of the fundamental interactions and, with the implement of family symmetry, some of the parameters of the basic fermions become related. Supersymmetry is an essential ingredient of the present theories and the introduction of hidden space-time dimensions appears to be a common feature. The gravitational interaction plays an important role in the unifying picture, linking low-energy parameters with the physics at the Plank scale.
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References
Particle Data Group, Phys.Rev. D54, 1 (1996).
G. Costa, in Disordered Solids, edited by B. Di Bartolo, Plenum Press, New York (1989).
G. Costa, in Spectroscopy and Dynamics of Collective Excitations in Solids, edited by B. Di Bartolo, Plenum Press, New York (1995).
G.G. Ross, Grand Unified Theories, Benjamin inc., Reading (1985).
S. Ferrara and P. Fayet, Phys.Reports 32C, 250 (1977); J.Wess and J.Bagger, Supersymmetry and Supergravity, Princeton University Press, Princeton (1982).
H. Fritzsch, Phys.Lett. B70, 436 (1977); P.Ramond, R.Roberts and G.G.Ross, Nucl.Phys. B404, 19 (1993).
S. Rabi, preprint OHSTPY-HEP-T-95-024, published in Trieste HEP Cosmology (1995); L.J.Hall, preprint LBL-38110/UCB-PTH-96/10, published in SLAC Summer Institute (1995).
R. Barbieri, G. Dvali and L.J. Hall, Phys.Lett. B377, 76 (1996); R.Barbieri and L.J.Hall, Nuovo Cimento A110, 1 (1997).
C.D. Carone and L.J. Hall, Phys. Rev. D56, 4198 (1997); G.Costa and E.Lunghi, Nuovo Cimento 110A, 549 (1997).
S. Weinberg, Gravitation and Cosmology. Principles and Applications of the General Theory of Relativity, John Wiley and Sons, New York (1972).
P. van Nieuwenhuizen, Phys.Reports 68, 191 (1981).
M.J. Duff, in Supersymmetry and Supergravity’ 84, edited by B. de Wit, P. Fayet and P. van Nieuwenhuizen, World Scientific Publishing Co., Singapore (1984).
E. Cremmer, B. Julia and J. Scherk, Phys.Lett. 76B, 409 (1978).
E. Witten, Nucl.Phys. B186, 412 (1981).
M.B. Green, J.H. Schwarz and E.Witten, Superstring Theory, Cambridge University Press, Cambridge (1987).
S. Ferrara, Proceed. of the 28th Int.Conf. on High Ehergy Physics, ICHEP’96, Vol. I, ed. by Z. Ajduk and A. K. Wroblewsky, World Scientific Publ.Co., Singapore (1997).
H.P. Nilles, Phys.Reports 110, 1 (1984).
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© 2002 Kluwer Academic Publishers
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Costa, G. (2002). Unification in Particle Physics: Symmetries and Hidden Dimensions. In: Di Bartolo, B., Gambarota, G. (eds) Ultrafast Dynamics of Quantum Systems. NATO Science Series: B:, vol 372. Springer, Boston, MA. https://doi.org/10.1007/0-306-47080-2_24
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DOI: https://doi.org/10.1007/0-306-47080-2_24
Publisher Name: Springer, Boston, MA
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