Photon induced corrections to Drell-Yan production in POWHEG
Abstract
High-precision theoretical predictions for both signal and background processes are crucial for the precision physics program at the LHC and HL-LHC. A prime example is the determination of the effective leptonic weak mixing angle from neutral current Drell-Yan via template-fit methods, where Monte Carlo templates directly serve as input to the measurement, making theoretical uncertainties part of the systematic error affecting the experimental results. In this paper, we focus on photon-induced corrections to neutral current Drell-Yan, as well as on the irreducible γγ→ l+l- background. We present the implementation of the photon-initiated contributions in the Z_ew-BMNNPV Monte Carlo generator for Drell-Yan production at NLO QCD + NLO EW accuracy matched to QED and QCD parton showers within the POWHEG framework. We discuss phenomenological results for the dilepton invariant-mass distribution and the forward-backward asymmetry in the Z-resonance region and in the TeV range.
Related
- Addendum: Production of π+ π− pairs in diffractive photon-proton and in proton-proton collisions revisited, in particular concerning the Drell-Söding contribution
- Radiative corrections to the subprocess of annihilation of quark-antiquark pair of prompt photon production in proton-proton collisions at NICA energies √(s)= 10 GeV
- Towards the two-loop electroweak corrections to the Drell-Yan process: the complete fermionic contributions
- A Powheg generator for t- and s-channel single-top production and decay including non-resonant effects
- Photon production from gluon splitting and fusion induced by a magnetic field of arbitrary strength in relativistic heavy-ion collisions
BibTeX
@misc{belloni2026photon,
title = {{Photon induced corrections to Drell-Yan production in POWHEG}},
author = {Filippo Belloni and Mauro Chiesa and Clara Del Pio and Fulvio Piccinini},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.26334},
eprint = {2610.26334},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.26334},
}
RIS
TY - UNPB
TI - Photon induced corrections to Drell-Yan production in POWHEG
AU - Filippo Belloni
AU - Mauro Chiesa
AU - Clara Del Pio
AU - Fulvio Piccinini
PY - 2026
DA - 2026/10/19
PB - arXiv
DO - 10.48550/arxiv.2610.26334
UR - https://arxiv.org/abs/2610.26334
AB - High-precision theoretical predictions for both signal and background processes are crucial for the precision physics program at the LHC and HL-LHC. A prime example is the determination of the effective leptonic weak mixing angle from neutral current Drell-Yan via template-fit methods, where Monte Carlo templates directly serve as input to the measurement, making theoretical uncertainties part of the systematic error affecting the experimental results. In this paper, we focus on photon-induced corrections to neutral current Drell-Yan, as well as on the irreducible γγ→ l^+l^- background. We present the implementation of the photon-initiated contributions in the Z_ew-BMNNPV Monte Carlo generator for Drell-Yan production at NLO QCD + NLO EW accuracy matched to QED and QCD parton showers within the POWHEG framework. We discuss phenomenological results for the dilepton invariant-mass distribution and the forward-backward asymmetry in the Z-resonance region and in the TeV range.
ER -