Weighted power counting and Lorentz violating gauge theories. II: Classification |
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Authors: | Damiano Anselmi |
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Institution: | Dipartimento di Fisica “Enrico Fermi”, Università di Pisa, Largo Pontecorvo 3, I-56127 Pisa, Italy INFN, Sezione di Pisa, Pisa, Italy |
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Abstract: | We classify the local, polynomial, unitary gauge theories that violate Lorentz symmetry explicitly at high energies and are renormalizable by weighted power counting. We study the structure of such theories and prove that renormalization does not generate higher time derivatives. We work out the conditions to renormalize vertices that are usually non-renormalizable, such as the two scalar-two fermion interactions and the four fermion interactions. A number of four-dimensional examples are presented. |
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Keywords: | Lorentz symmetry Lorentz violation Gauge theories |
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