Lorentz symmetry of the noncommutative chiral bosons
- Instituto de Fisica, Universidade Estadual do Rio de Janeiro, 58051-970, Rio de Janeiro (Brazil) and Departamento de Fisica, Instituto de Ciencias Exatas, Universidade Federal Rural do Rio de Janeiro, BR 465-07, 23851-180, Seropedica, Rio de Janeiro (Brazil)
- Instituto de Fisica, Universidade Federal da Paraiba, 21945, Joao Pessoa (Brazil)
- Instituto de Fisica, Universidade Federal do Rio de Janeiro, 21945, Rio de Janeiro (Brazil)
We study issues of Lorentz violation symmetry in the context of the recently proposed theory of noncommutative fields [J. Carmona, J. L. Cortes, J. Gamboa, and F. Mendes, J. High Energy Phys. 03 (2003) 058; Phys. Lett. B 565, 222 (2003).], using the soldering formalism. To this end a noncommutative chiral boson with a deformed algebra [A. Das, J. Gamboa, F. Mendes, and J. Lopes-Sarrion, J. High Energy Phys. 05 (2004) 022.], used to study these notions in D=2, is properly generalized. We verify, also for this larger group of theories that, although the structure of the Lorentz group is preserved, the velocity of light is scaled by a function of the deformation parameter, as recently claimed. However, we found a subset of models where the velocity of propagation is maintained in spite of the presence of the deformed algebra. Effects of a preferred frame of reference manifest by the presence of birefringence were also studied in the chiral boson framework leading to the scalar sector of the extended standard model recently proposed.
- OSTI ID:
- 20708911
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 71, Issue 6; Other Information: DOI: 10.1103/PhysRevD.71.065004; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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