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PreprintCC BY 4.0arXiv

Polarization and correlation effects in γγ→ W-W+ at Next-to-Leading-Order Electroweak Accuracy

  • Jun Jiang
  • Peng-Cheng Lu
  • Zongguo Si
  • Han Zhang
  • Xin-Yi Zhang
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Abstract

We study the next-to-leading order (NLO) electroweak (EW) corrections to the polarization and correlation of W boson pairs produced through photon-photon fusion in proton-proton ultra-peripheral collisions at the LHC, with both W bosons decaying leptonically. The azimuthal correlation distributions of the charged leptons, which receive no contribution from anomalous quartic gauge couplings (AQGCs) at linear order, are perturbatively stable at the 0.40\% level, whereas individual correlation coefficient C2,2 receives relative corrections of up to −33.84%. Some of correlation coefficients that vanish at leading order (LO) in the Standard Model but are sensitive to AQGCs acquire non-zero one-loop values of order 10−4−10−3. We quantify the region of the (a0/Λ2,ac/Λ2) plane in which these loop-induced baselines compete with the AQGC contributions and find that, while irrelevant at the current experimental sensitivity, they must be included once the correlation coefficients are measured at the per-mille level.

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Cite

BibTeXRIS
BibTeX
@misc{jiang2026polarization,
  title = {{Polarization and correlation effects in $γγ\to W^-W^+$ at Next-to-Leading-Order Electroweak Accuracy}},
  author = {Jun Jiang and Peng-Cheng Lu and Zongguo Si and Han Zhang and Xin-Yi Zhang},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.27451},
  eprint = {2609.27451},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.27451},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Polarization and correlation effects in γγ→ W^-W^+ at Next-to-Leading-Order Electroweak Accuracy
AU  - Jun Jiang
AU  - Peng-Cheng Lu
AU  - Zongguo Si
AU  - Han Zhang
AU  - Xin-Yi Zhang
PY  - 2026
DA  - 2026/09/23
PB  - arXiv
DO  - 10.48550/arxiv.2609.27451
UR  - https://arxiv.org/abs/2609.27451
AB  - We study the next-to-leading order (NLO) electroweak (EW) corrections to the polarization and correlation of W boson pairs produced through photon-photon fusion in proton-proton ultra-peripheral collisions at the LHC, with both W bosons decaying leptonically. The azimuthal correlation distributions of the charged leptons, which receive no contribution from anomalous quartic gauge couplings (AQGCs) at linear order, are perturbatively stable at the 0.40\% level, whereas individual correlation coefficient C_2,2 receives relative corrections of up to −33.84%. Some of correlation coefficients that vanish at leading order (LO) in the Standard Model but are sensitive to AQGCs acquire non-zero one-loop values of order 10^−4−10^−3. We quantify the region of the (a_0/Λ^2,a_c/Λ^2) plane in which these loop-induced baselines compete with the AQGC contributions and find that, while irrelevant at the current experimental sensitivity, they must be included once the correlation coefficients are measured at the per-mille level.
ER  -