Skip to content
DraconiticResearch
Search Sources API
197,768 studies31 sourcesUpdated 36 min ago
PreprintCC BY 4.0arXiv

The γZ-box correction and its impact on parity-violating deep-inelastic scattering

  • Balma Duch
  • Pere Masjuan
  • Hubert Spiesberger
Open at sourcePDFDOICite

Abstract

The γZ-box correction is an important electroweak contribution to precision parity-violation measurements, but its conventional low-energy treatment relies on an ambiguous effective quark-mass prescription. We revisit this correction using a finite-mass calculation that provides a well-defined perturbative contribution without introducing such an auxiliary scale. Applying the result to the Jefferson Lab PVDIS measurement shifts the extracted electron-quark couplings at the 10−3 level. We discuss the implications of this shift for precision electroweak tests and the need for a consistent separation of perturbative and non-perturbative hadronic contributions.

Related

  1. Parity-violating Møller scattering: complete two-loop corrections
    Andrzej Czarnecki
    arXivPreprintarXiv licenceFull textHigh-energy & particle physicsarXiv
  2. Bosonic Contribution to Parity-Violating Møller Scattering at NNLO
    Lisong Chen, Jens Erler, Ayres Freitas +1
    arXivPreprintCC BY 4.0Full textHigh-energy & particle physicsNuclear physicsarXiv
  3. Precision Neutron Skins of 208Pb and 48Ca from Parity-Violating Electron Scattering
    PREX Collaboration, D. Adhikari, H. Albataineh +100
    arXivPreprintarXiv licenceFull textNuclear physicsarXiv
  4. Parity-violating scalar-tensor theory revisited: complete basis up to d=4 and Hamiltonian analysis
    Yun-Chuan Zhang, Yu-Min Hu, Xian Gao
    arXivPreprintCC BY-NC-ND 4.0Full textGravitation & general relativityHigh-energy & particle physicsarXiv
  5. Mixed-Order Parity-Violating Corrections to Rotating Black Holes in Combined Scalar Gauss-Bonnet and Dynamical Chern-Simons Gravity
    Abhishek Rout, Brett Altschul
    arXivPreprintarXiv licenceFull textGravitation & general relativityHigh-energy & particle physicsarXiv

Cite

BibTeXRIS
BibTeX
@misc{duch2026γzbox,
  title = {{The $γZ$-box correction and its impact on parity-violating deep-inelastic scattering}},
  author = {Balma Duch and Pere Masjuan and Hubert Spiesberger},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.15181},
  eprint = {2609.15181},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.15181},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - The γZ-box correction and its impact on parity-violating deep-inelastic scattering
AU  - Balma Duch
AU  - Pere Masjuan
AU  - Hubert Spiesberger
PY  - 2026
DA  - 2026/09/14
PB  - arXiv
DO  - 10.48550/arxiv.2609.15181
UR  - https://arxiv.org/abs/2609.15181
AB  - The γZ-box correction is an important electroweak contribution to precision parity-violation measurements, but its conventional low-energy treatment relies on an ambiguous effective quark-mass prescription. We revisit this correction using a finite-mass calculation that provides a well-defined perturbative contribution without introducing such an auxiliary scale. Applying the result to the Jefferson Lab PVDIS measurement shifts the extracted electron-quark couplings at the 10^−3 level. We discuss the implications of this shift for precision electroweak tests and the need for a consistent separation of perturbative and non-perturbative hadronic contributions.
ER  -