English

Dipole operators in Fierz identities

High Energy Physics - Phenomenology 2023-06-14 v2

Abstract

We study the contribution from dipole operators to one-loop Fierz identities and provide the resulting QCD and QED shifts to the tree-level relations for all four-fermion operators. The results simplify one-loop basis changes as well as matching computations and allow one to consistently eliminate operators from an operator basis which give rise to complications, e.g. traces involving γ5\gamma_5.

Cite

@article{arxiv.2211.01379,
  title  = {Dipole operators in Fierz identities},
  author = {Jason Aebischer and Marko Pesut and Zachary Polonsky},
  journal= {arXiv preprint arXiv:2211.01379},
  year   = {2023}
}

Comments

6 pages, 2 figures, 5 tables. Updated to match published version

R2 v1 2026-06-28T05:02:59.291Z