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EnglishConstraints on possible Lorentz symmetry violation (LV) of order E=MPlanck for electrons and photons in the framework of effective field theory (EFT) are discussed. Using (i) the report of polarized MeVemission from GRB021206 and (ii) the absence of vacuum Cˇ erenkov radiation from synchrotron electrons in the Crab Nebula, we improve previous bounds by 1010 and 102, respectively. We also show that the LV parameters for positrons and electrons are different, discuss electron helicity decay, and investigate how prior constraints are modified by the relations between LV parameters implied by EFT.
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http://hdl.handle.net/20.500.11767/13999| Titolo: | New limits on Planck scale Lorentz violation in QED |
| Autori: | THEODORE A. JACOBSON; LIBERATI S; D. MATTINGLY; F.W. STECKER |
| Rivista: | PHYSICAL REVIEW LETTERS |
| Data di pubblicazione: | 2004 |
| Volume: | 93 |
| Digital Object Identifier (DOI): | 10.1103/PhysRevLett.93.021101 |
| Appare nelle tipologie: | 1.1 Journal article |
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