Quantum-gravity phenomenology, Lorentz symmetry, and the SME

Details Quantum-gravity phenomenology, Lorentz symmetry, and the SME Quantum-gravity phenomenology, Lorentz symmetry, and the SME

2007-03-16

arxiv.org/abs/gr-qc/0703089v1

AIPConf.Proc.917:138-145,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, 2 figures, Plenary talk at 12th Mexican School on Particles and Fields and 6th Latin American Symposium on High Energ

Scientific paper

10.1063/1.2751950

Violations of spacetime symmetries have recently been identified as promising signatures for physics underlying the Standard Model. The present talk gives an overview over various topics in this field: The motivations for spacetime-symmetry research, including some mechanisms for Lorentz breaking, are reviewed. An effective field theory called the Standard-Model Extension (SME) for the description of the resulting low-energy effects is introduced, and some experimental tests of Lorentz and CPT invariance are listed.

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