CPT and Lorentz tests with muons

Alan Kostelecky; Charles Lane; Robert Bluhm

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CPT and Lorentz tests with muons

Robert Bluhm, Alan Kostelecky, Charles Lane

High Energy Physics - Phenomenology · Submitted 21 Dec 1999

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Existing data on the muonium ground-state hyperfine structure and on the muon anomalous magnetic moment could be analyzed to provide dimensionless figures of merit for CPT and Lorentz violation at the levels of $4\times 10^{-21}$ and $10^{-23}$.

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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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What the abstract itself states, as probabilities: claims first 0.06 · states limitation 0.10 · human participants 0.02 · controlled comparison 0.04 · randomized assignment 0.01 · states quantitative result 0.86 · compares with prior results 0.25 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; show every role.

Precision experiments with muons are sensitive to Planck-scale CPT and Lorentz violation that is undetectable in other tests. Existing data on the muonium ground-state hyperfine structure and on the muon anomalous magnetic moment could be analyzed to provide dimensionless figures of merit for CPT and Lorentz violation at the levels of $4\times 10^{-21}$ and $10^{-23}$.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	Precision experiments with muons are sensitive to Planck-scale CPT and Lorentz violation that is undetectable in other tests.	background 0.97	0.08	0.27	asserted 0.98
s1	Existing data on the muonium ground-state hyperfine structure and on the muon anomalous magnetic moment could be analyzed to provide dimensionless figures of merit for CPT and Lorentz violation at the levels of $4\times 10^{-21}$ and $10^{-23}$.	contribution 0.43	0.20	0.61	hedged possibility 1.00

What kind of paper the classifier reports this is: theoretical result 0.46 · evidence from analysis of existing data 0.99.

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arXiv listing abstract v1

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full text
figures and tables
references and citing sentences
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P abstract

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T body sentences
C citations
R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

Precision experiments with muons are sensitive to Planck-scale CPT and Lorentz violation that is undetectable in other tests. Existing data on the muonium ground-state hyperfine structure and on the muon anomalous magnetic moment could be analyzed to provide dimensionless figures of merit for CPT and Lorentz violation at the levels of $4\times 10^{-21}$ and $10^{-23}$.

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References

How the literature uses it

7 arXiv papers cite this in 15 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 10 sentences without a confident label

Compares with it 1 paper

In fact, expanding ([ref]) into series on $a_0$ gives the leading contribution $∝K a_0$, with its effect suppressed by a factor of $K/E$, thus is compatible with the null leading order results addressed in Ref. [ref] .

Muon precession from the aspect of Dirac equations · contribution of other Lorentz violating terms · 0.90

Cites it as background 3 papers

The impact of the spin-nondegenerate $b$ and $d$ coefficients on $(g-2)_ℓ$ has been the subject matter of a fair number of papers [ref] .

Impact of Lorentz violation on anomalous magnetic moments of charged leptons · Lorentz-violating QED · 0.86
In the Standard-Model Extension (SME) framework, the dominant framework for systematic CPT and Lorentz invariance tests, the CPT- and Lorentz-violating signatures for muons are encoded in a set of coefficients [ref] .

CANTON-$\mu$ Proposal: A Next-Generation Muon $g-2$ Measurement at Sub-0.1 ppm Precision · Introduction · 0.97
Within SME approaches, CPT symmetry violation is explored, for example, in Refs. [ref] , the fermion sector in Refs. [ref] , the CPT-odd/even gauge sectors in Refs. [ref] , and radiative corrections in Refs. [ref] .

Stars and quark stars in bumblebee gravity · Introduction · 0.98

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