2006/11/01 by Guy Bonneau · 20 citations
Mathematics · Physics and Astronomy · #A priori and a posteriori #Asymmetry #Black Holes and Theoretical Physics #CPT symmetry #Divergence (linguistics) #Epistemology #Global symmetry #Lagrangian #Mathematical physics #Mathematics #Noncommutative and Quantum Gravity Theories #Particle physics #Particle physics theoretical and experimental studies #Philosophy #Physics #Quantum mechanics #Radiative transfer #Residual #Spontaneous symmetry breaking #Symmetry (geometry) #Symmetry breaking #Term (time) #Theoretical physics #hep-ph #hep-th
paper · pdf · doi:10.1016/j.nuclphysb.2006.11.028
published in Nuclear Physics B 764(1-2), 83-94 (Elsevier BV) · 11 pages, latex file, no figure
arxiv created 2006/11/01 · openalex publication_date 2006/12/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We rediscuss the controversy on a possible Chern-Simons like term generated through radiative corrections in QED with a CPT violating term. We analyse some consequences of the division of the Lagrangian density between "free part" and "interaction part". We also emphasize the fact that any absence of an \sl a priori divergence should be explained by some symmetry or some non-renormalisation theorem and show that the so-called "unambiguous result" based upon "maximal SO(3) residual symmetry " does not offer a solution.