ar X iv : h ep - p h / 04 07 23 2 v 2 21 J ul 2 00 4 Improved Test of Lorentz Invariance in Electrodynamics
نویسندگان
چکیده
We report new results of a test of Lorentz invariance based on the comparison of a cryogenic sapphire microwave resonator and a hydrogen maser. The experimental results are shown together with an extensive analysis of systematic effects. Previously, this experiment has set the most stringent constraint on Kennedy-Thorndike type violations of Lorentz invariance. In this work we present new data and interpret our results in the general Lorentz violating extension of the standard model of particle physics (SME). Within the photon sector of the SME, our experiment is sensitive to seven SME parameters. We marginally improve present limits on four of these, and by a factor 7 to 10 on the other three.
منابع مشابه
ar X iv : h ep - t h / 06 04 16 4 v 5 1 J ul 2 00 6 On the consistency of Lorentz invariance violation in QED
We show for the first time that the induced parity–even Lorentz invariance violation can be unambiguously calculated in the physically justified and minimally broken dimensional regularization scheme, suitably tailored for a spontaneous Lorentz symmetry breaking in a field theory model. The quantization of the Lorentz invariance violating quantum electrodynamics is critically examined and shown...
متن کاملar X iv : h ep - t h / 06 04 16 4 v 2 2 5 A pr 2 00 6 On the consistency of Lorentz invariance violation in QED
We show that the induced parity–even Lorentz invariance violation can be unambiguously calculated in the physically justified and minimally broken dimensional regularization scheme, suitably tailored for a spontaneous Lorentz symmetry breaking in a field theory model. The quantization of the Lorentz invariance violating quantum electrodynamics is briefly examined and shown to be consistent eith...
متن کاملar X iv : h ep - p h / 04 12 02 3 v 1 2 D ec 2 00 4 Radiation in Lorentz violating electrodynamics
Synchrotron radiation is analyzed in the classical effective Lorentz invariance violating model of Myers-Pospelov. Within the full far-field approximation we compute the electric and magnetic fields, the angular distribution of the power spectrum and the total emitted power in the m-th harmonic, as well as the polarization. We find the appearance of rather unexpected and large amplifying factor...
متن کاملar X iv : h ep - p h / 04 07 36 3 v 1 3 0 Ju l 2 00 4 Violation of Lorentz invariance and dynamical effects in high energy gamma rays
The relation between the violation of Lorentz invariance and the dynamical effects in high energy gamma rays production is discussed. By using the framework of noncommutative classical electrodynamics, it is shown that full dynamical calculations are required to put bounds on the Lorentz violating scale by the phenomenological analysis of these processes as, for example, the synchrotron radiati...
متن کاملar X iv : h ep - t h / 06 04 16 4 v 3 1 M ay 2 00 6 On the consistency of Lorentz invariance violation in QED induced by fermions in constant axial – vector background
We show that the induced parity–even Lorentz invariance violation can be unambiguously calculated in the physically justified and minimally broken dimensional regularization scheme, suitably tailored for a spontaneous Lorentz symmetry breaking in a field theory model. The quantization of the Lorentz invariance violating quantum electrodynamics is briefly examined and shown to be consistent eith...
متن کامل