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Naive T-odd Drell-Yan angular coefficients as a probe of the dimension-8 SMEFT

Frank Petriello1 and Kaan Şimşek2

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Phys. Rev. D 113, 075029 – Published 21 April, 2026

DOI: https://doi.org/10.1103/dywt-f6ht

Abstract

We propose the “naive” T-odd Collins-Soper moments in the Drell-Yan process as probes of previously unexplored directions in the Standard Model effective field theory (SMEFT) parameter space. We show that the moments A6 and A7 in the high invariant mass and transverse momentum region are sensitive to dimension-8 CP-odd semileptonic four-fermion operators with an additional gluon field strength tensor. Using the projected integrated luminosity of a future high-luminosity LHC, we show that effective ultraviolet scales in the few-TeV range can be probed with this process.

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Phys. Rev. D 113, 075029– Published 21 April, 2026
  • Received 11 December 2025
  • Accepted 30 March 2026
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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.

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