Abt, I;
Aggarwal, R;
Aushev, V;
Behnke, O;
Bertolin, A;
Bloch, I;
Brock, I;
... Zenaiev, O; + view all
(2023)
Search for effective Lorentz and CPT violation using ZEUS data.
Physical Review D
, 107
(9)
, Article 092008. 10.1103/PhysRevD.107.092008.
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Abstract
Lorentz and CPT symmetry in the quark sector of the Standard Model are studied in the context of an effective field theory using ZEUS e±p data. Symmetry-violating effects can lead to time-dependent oscillations of otherwise time-independent observables, including scattering cross sections. An analysis using five years of inclusive neutral-current deep inelastic scattering events corresponding to an integrated HERA luminosity of 372 pb-1 at s=318 GeV has been performed. No evidence for oscillations in sidereal time has been observed within statistical and systematic uncertainties. Constraints, most for the first time, are placed on 42 coefficients parametrizing dominant CPT-even dimension-four and CPT-odd dimension-five spin-independent modifications to the propagation and interaction of light quarks.
| Type: | Article |
|---|---|
| Title: | Search for effective Lorentz and CPT violation using ZEUS data |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.107.092008 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.107.092008 |
| Language: | English |
| Additional information: | © 2023 American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10174402 |
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