Quark-sector Lorentz violation in $Z$-boson production

Abstract

Quark-sector Lorentz violation is studied in the context of Drell-Yan dilepton production including effects from Z-boson exchange. We show the chiral nature of the weak interactions enables parity-violating and spin-dependent effects to be studied using unpolarized initial states. Constraints are placed on dimensionless and CPT-even coefficients for Lorentz violation for the first two generations of quarks using measurements from the Large Hadron Collider.

Comments: Typos in Eq. 3.14 addressed, leading to an updated figure and tables. Conclusions unchanged