Laboratory tests of Lorentz and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>C</mml:mi><mml:mi>P</mml:mi><mml:mi>T</mml:mi></mml:mrow></mml:math>symmetry with muons

Gomes, André H.; Kostelecký, V. Alan; Vargas, Arnaldo J.

doi:10.1103/physrevd.90.076009

Cited by 67 publications

(106 citation statements)

References 82 publications

Supporting

Mentioning

100

Contrasting

Order By: Relevance

“…For instance, the dominant contributions to the various spectra obtained below are independent of the internal electromagnetic four-vector potential in Coulomb gauge, while any applied external electromagnetic fields are minuscule compared to the electron and proton masses and so their Lorentz-violating effects are heavily suppressed. This approach is consistent with other studies of both minimal and nonminimal effects in conventional and muonic atoms [45][46][47]. We also disregard possible flavor-changing effects, which involve simultaneous lepton-or baryon-number violation with Lorentz violation and so can reasonably be taken as smaller than the effects considered here.…”

Section: Introductionsupporting

confidence: 78%

See 1 more Smart Citation

Lorentz andCPTtests with hydrogen, antihydrogen, and related systems

2015

Self Cite

View full text Add to dashboard Cite

The potential of precision spectroscopy as a tool in systematic searches for effects of Lorentz and CPT violation is investigated. Systems considered include hydrogen, antihydrogen, deuterium, positronium, and hydrogen molecules and molecular ions. Perturbative shifts in energy levels and key transition frequencies are derived, allowing for Lorentz-violating operators of arbitrary mass dimensions. Observable effects are deduced from various direct measurements, sidereal and annual variations, comparisons among species, and gravitational responses. We use existing data to place new and improved constraints on nonrelativistic coefficients for Lorentz and CPT violation, and we provide estimates for the future attainable reach in direct spectroscopy of the various systems or tests with hydrogen and deuterium masers. The results reveal prospective sensitivities to many coefficients unmeasured to date, along with potential improvements of a billionfold or more over certain existing results.

show abstract

Section: Introductionsupporting

confidence: 78%

“…An example discussed in Ref. [46] is a comparison of radii using the isotope shift between muonic hydrogen and muonic deuterium. A complete analysis of this system would place constraints on muon coefficients for Lorentz and CPT violation as well as proton and neutron coefficients.…”

Section: Comparative Analysesmentioning

confidence: 99%

Lorentz andCPTtests with hydrogen, antihydrogen, and related systems

2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…The idea of mixing different components in the condensed (cosmic or even local) tensor fields with a full Lorentz transformation is also applicable in other sectors of SME with careful studies, as demonstrated in Refs. [63][64][65]. Although such a boost is usually quite small (e.g.…”

Section: Smentioning

confidence: 99%

New pulsar limit on local Lorentz invariance violation of gravity in the standard-model extension

Shao

2014

Phys. Rev. D

View full text Add to dashboard Cite

In the pure-gravity sector of the minimal standard-model extension, nine Lorentz-violating coefficients of a vacuum-condensed tensor field describe dominant observable deviations from general relativity, out of which eight were already severely constrained by precision experiments with lunar laser ranging, atom interferometry, and pulsars. However, the time-time component of the tensor field,s TT , dose not enter into these experiments, and was only very recently constrained by Gravity Probe B. Here we propose a novel idea of using the Lorentz boost between different frames to mix different components of the tensor field, and thereby obtain a stringent limit ofs TT from binary pulsars. We perform various tests with the state-of-the-art white dwarf optical spectroscopy and pulsar radio timing observations, in order to get new robust limits ofs TT . With the isotropic cosmic microwave background as a preferred frame, we get |s TT | < 1.6 × 10 −5 (95% CL), and without assuming the existence of a preferred frame, we get |s TT | < 2.8 × 10 −4 (95% CL). These two limits are respectively about 500 times and 30 times better than the current best limit.

show abstract

“…For details of other most recently proposed laboratory tests of CPT -odd and Lorentz invariance-violating physics with muons, we refer the reader to Ref. [49].…”

Section: Introductionmentioning

confidence: 99%

Tests ofCPTand Lorentz symmetry from muon anomalous magnetic dipole moment

2014

View full text Add to dashboard Cite

We derive the relativistic factor for splitting of the g-factors of a fermion and its anti-fermion partner, which is important for placing constraints on dimension-5, CP T -odd and Lorentz-invarianceviolating interactions from experiments performed in a cyclotron. From existing data, we extract limits (1σ) on the coupling strengths of the temporal component, f 0 , of a background field (including the field amplitude), which is responsible for such g-factor splitting, with an electron, proton, and muon: |f 0 e | < 2.3 × 10 −12 µB, |f 0 p | < 4 × 10 −9 µB, and |f 0 µ | < 8 × 10 −11 µB, respectively, in the laboratory frame. From existing data, we also extract limits on the coupling strengths of the spatial components, d⊥ , of related dimension-5 interactions of a background field with an electron, proton, neutron, and muon: |d ⊥ e | 10 −9 µB, |d ⊥ p | 10 −9 µB, |d ⊥ n | 10 −10 µB, and |d ⊥ µ | 10 −9 µB, respectively, in the laboratory frame.

show abstract

Laboratory tests of Lorentz andCPTsymmetry with muons

Cited by 67 publications

References 82 publications

Lorentz andCPTtests with hydrogen, antihydrogen, and related systems

Lorentz andCPTtests with hydrogen, antihydrogen, and related systems

New pulsar limit on local Lorentz invariance violation of gravity in the standard-model extension

Tests ofCPTand Lorentz symmetry from muon anomalous magnetic dipole moment

Contact Info

Product

Resources

About