Details

Autor(en) / Beteiligte

• JACOBSON, T
• LIBERATI, S
• MATTINGLY, D
• STECKER, F. W

Titel

New limits on planck scale Lorentz violation in QED

Ist Teil von

• Physical review letters, 2004-07, Vol.93 (2), p.021101.1-021101.4, Article 021101

Ort / Verlag

Ridge, NY: American Physical Society

Erscheinungsjahr

2004

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• Constraints on possible Lorentz symmetry violation (LV) of order E/M(Planck) for electrons and photons in the framework of effective field theory (EFT) are discussed. Using (i) the report of polarized MeV emission from GRB021206 and (ii) the absence of vacuum Cerenkov radiation from synchrotron electrons in the Crab Nebula, we improve previous bounds by 10(-10) and 10(-2), 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.