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Journal of High Energy Physics Volume 2001 JHEP04(2001) Create an alert RSS this journal

Manuel Pérez-Victoria JHEP04(2001)032 doi:10.1088/1126-6708/2001/04/032

Physical (ir)relevance of ambiguities to Lorentz and CPT violation in QED

Manuel Pérez-Victoria1

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Abstract Cited By

We discuss the regularization and renormalization of QED with Lorentz and CPT violation, and argue that the coefficient of the Chern-Simons term is an independent parameter not determined by gauge invariance. We also study these issues in a model with spontaneous breaking of Lorentz and CPT symmetries and find an explicit relation with the ABJ anomaly. This explains the observed convergence of the induced Chern-Simons term.


Keywords

Space-Time Symmetries

Discrete and Finite Symmetries

 

E-print Number: hep-th/0102021

Cited: by |

Refers: to

PACS

11.30.Er Charge conjugation, parity, time reversal, and other discrete symmetries

11.30.Cp Lorentz and Poincare invariance

11.10.Gh Renormalization

11.30.Qc Spontaneous and radiative symmetry breaking

12.20.-m Quantum electrodynamics

Subjects

Particle physics and field theory

Dates

Issue 04 ( 1 April 2001)

Received 23 February 2001, accepted for publication 26 April 2001

Published 9 May 2001



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