Abramowicz, H;
Abt, I;
Adamczyk, L;
Adamus, M;
Aggarwal, R;
Antonelli, S;
Aushev, V;
... Zhautykov, BO; + view all
(2019)
Limits on contact interactions and leptoquarks at HERA.
Physical Review D
, 99
(9)
, Article 092006. 10.1103/PhysRevD.99.092006.
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Abstract
High-precision HERA data corresponding to a luminosity of around 1 fb − 1 have been used in the framework of e e q q contact interactions (CI) to set limits on possible high-energy contributions beyond the Standard Model to electron-quark scattering. Measurements of the inclusive deep inelastic cross sections in neutral and charged current e p scattering were considered. The analysis of the e p data has been based on simultaneous fits of parton distribution functions including contributions of CI couplings to e p scattering. Several general CI models and scenarios with heavy leptoquarks were considered. Improvements in the description of the inclusive HERA data were obtained for a few models. Since a statistically significant deviation from the Standard Model cannot be established, limits in the TeV range were set on all models considered.
| Type: | Article |
|---|---|
| Title: | Limits on contact interactions and leptoquarks at HERA |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.99.092006 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.99.092006 |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. 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/10076448 |
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