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arXiv · 2508.08956

A comprehensive analysis of Drell-Yan production uncertainties and mass effects at moderate and low dilepton masses

Ekta Chaubey·Claude Duhr·Rhorry Gauld·Pooja Mukherjee
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Abstract

We present a thorough investigation of the sources of uncertainties to the Drell-Yan production using state-of-the-art predictions for both neutral and charged current channels, focusing on the low invariant mass region. Differential predictions for the invariant mass spectrum are provided at N$^3$LO supplemented with exact charm and bottom quark mass effects calculated at $\mathcal{O}(α_s^2)$. The impact of PDF choices (including approximate N$^3$LO), scale variations, the variation of the strong coupling constant, and impact heavy quark mass effects on the distributions is studied in detail. We also comment on the correlation of high-energy astrophysical processes with the low-mass DY region.

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Ekta Chaubey, Claude Duhr, Rhorry Gauld, Pooja Mukherjee. 2026-02-04. A comprehensive analysis of Drell-Yan production uncertainties and mass effects at moderate and low dilepton masses. https://arxiv.org/abs/2508.08956

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