Journal article
Limits on contact interactions and leptoquarks at HERA
- Abstract:
- High-precision HERA data corresponding to a luminosity of around 1 fb−1 have been used in the framework of 𝑒𝑒𝑞𝑞 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 𝑒𝑝 scattering were considered. The analysis of the 𝑒𝑝 data has been based on simultaneous fits of parton distribution functions including contributions of CI couplings to 𝑒𝑝 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.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 452.9KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevD.99.092006
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review D More from this journal
- Volume:
- 99
- Issue:
- 9
- Article number:
- 092006
- Publication date:
- 2019-05-29
- DOI:
- EISSN:
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2470-0029
- ISSN:
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2470-0010
- Language:
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English
- Pubs id:
-
pubs:976080
- UUID:
-
uuid:bed899a9-321e-40e1-9173-144d0432809d
- Local pid:
-
pubs:976080
- Source identifiers:
-
976080
- Deposit date:
-
2019-02-24
Terms of use
- Copyright holder:
- ZEUS Collaboration
- Copyright date:
- 2019
- Rights statement:
- 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. Funded by SCOAP3.
- Licence:
- CC Attribution (CC BY)
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