PoS - Proceedings of Science
Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Parallel: Beyond the Standard Model
Search for contact interactions in inclusive $ep$ scattering at HERA
I. Pidhurskyi, M. Shchedrolosiev, O. Turkot*, K. Wichmann, A.F. Zarnecki  on behalf of the ZEUS Collaboration
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Published on: August 02, 2019
The high-precision HERA data are used to search for Beyond the Standard Model contributions to electron-quark scattering in the framework of $eeqq$ contact interactions (CI). Combined measurements of the inclusive deep inelastic cross sections in neutral and charged current $ep$ scattering are considered, corresponding to a luminosity of around 1 fb$^{-1}$. The analysis of the inclusive $ep$ data is based on the simultaneous fits of parton distribution functions together with contributions of CI couplings to $ep$ scattering. Results are presented for different general CI scenarios and heavy leptoquarks with expected 95% C.L. limits on the CI mass scales in the 10 TeV range.
DOI: https://doi.org/10.22323/1.340.0331
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