Renormalization of high-energy Lorentz-violating QED

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.085042· OSTI ID:21409664

Anselmi, Damiano; Taiuti, Martina ^[1]

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1. Dipartimento di Fisica 'Enrico Fermi', Universita di Pisa and INFN, Sezione di Pisa, Largo Pontecorvo 3, I-56127 Pisa (Italy)

We study a QED extension that is unitary, CPT invariant, and super-renormalizable, but violates Lorentz symmetry at high energies, and contains higher-dimension operators (LVQED). Divergent diagrams are only one- and two-loop. We compute the one-loop renormalizations at high and low energies and analyze the relation between them. It emerges that the powerlike divergences of the low-energy theory are multiplied by arbitrary constants, inherited by the high-energy theory, and therefore can be set to zero at no cost, bypassing the hierarchy problem.

• OSTI ID: 21409664
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 8; Other Information: DOI: 10.1103/PhysRevD.81.085042; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CP INVARIANCE
LORENTZ INVARIANCE
QUANTUM ELECTRODYNAMICS
RENORMALIZATION
SYMMETRY
ELECTRODYNAMICS
FIELD THEORIES
INVARIANCE PRINCIPLES
QUANTUM FIELD THEORY