Limit on the anisotropy of the one-way maximum attainable speed of the electron

The Gamma Factory initiative proposes to develop novel research tools at CERN by producing, accelerating, and storing highly relativistic, partially stripped ion beams in the SPS and LHC storage rings. By exciting the electronic degrees of freedom of the stored ions with lasers, high-energy narrow-band photon beams will be produced by properly collimating the secondary radiation that is peaked in the direction of ions' propagation. Their intensities, up to 10 17 photons per second, will be several orders of magnitude higher than those of the presently operating light sources in the particularly interesting-ray energy domain reaching up to 400 MeV. This article reviews opportunities that may be afforded by utilizing the primary beams for spectroscopy of partially stripped ions circulating in the storage ring, as well as the atomic-physics opportunities made possible by the use of the secondary high-energy photon beams. The Gamma Factory will enable groundbreaking experiments in spectroscopy and novel ways of testing fundamental symmetries of nature.

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“…4.1). Improved test for a possible anisotropy of the one‐way maximum attainable speed [ 86 ] may also be possible.…”

Section: Physics Cases For the Gamma Factorymentioning

confidence: 99%

Atomic Physics Studies at the Gamma Factory at CERN

et al. 2020

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“…High-energy particle beams in a storage ring can be used for precision tests of the Lorentz-force variation with sidereal time, especially with two beams moving in opposite directions in the same magnetic structure [15,16]. In such an experiment the use of two counter-propagating beams provides a way to reduce the impact of the magnetic system instability and beam-energy variations.…”

Section: Special Relativity Tests With Beams Of Fast Particlesmentioning

confidence: 99%

Local Lorentz invariance tests for photons and hadrons at the Gamma Factory

Wojtsekhowski,

Budker

2021

Preprint

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High-precision tests of local Lorentz invariance, via monitoring of the sidereal time variation of the photon energies emitted by ultrarelativistic heavy-ion beams and of the beam momentum, are proposed. This paper includes descriptions of the physics ideas and the concept for the detector. The experiment results will allow high-precision tests of LLI via anisotropy of the maximum attainable speed of a photon and an ion. The projected accuracy for the asymmetries interpreted in the framework of the anisotropic relativistic mechanics corresponds to the limit on sidereal time variation of the one-way maximum attainable speed at the levels between 10 −14 and 10 −17 .

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“…High‐energy particle beams in a storage ring can be used for precision tests of the Lorentz‐force variation with sidereal time, especially with two beams moving in opposite directions in the same magnetic structure. [ 15,16 ] In such an experiment the use of two counter‐propagating beams provides a way to reduce the impact of the magnetic system instability and beam‐energy variations. The sensitivity to a potential variation of the electron MAS is enhanced by an additional factor of 2.…”

Section: Special Relativity Tests With Beams Of Fast Particlesmentioning

confidence: 99%

Local Lorentz Invariance Tests for Photons and Hadrons at the Gamma Factory

Wojtsekhowski

Budker

2021

Annalen der Physik

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High‐precision tests of local Lorentz invariance, via monitoring of the sidereal time variation of the photon energies emitted by ultrarelativistic heavy‐ion beams and of the beam momentum, are proposed. This paper includes descriptions of the physics ideas and the concept for the detector. The experiment results will allow high‐precision tests of LLI via anisotropy of the maximum attainable speed of a photon and an ion. The projected accuracy for the asymmetries interpreted in the framework of the anisotropic relativistic mechanics corresponds to the limit on sidereal time variation of the one‐way maximum attainable speed at the levels between 10−14 and 10−17.

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Limit on the anisotropy of the one-way maximum attainable speed of the electron

Cited by 6 publications

References 32 publications

Atomic Physics Studies at the Gamma Factory at CERN

Atomic Physics Studies at the Gamma Factory at CERN

Local Lorentz invariance tests for photons and hadrons at the Gamma Factory

Local Lorentz Invariance Tests for Photons and Hadrons at the Gamma Factory

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