A simple method to determine charge-dependent curvature biases in track reconstruction in hadron collider experiments

A new data-driven method, using Z -> mu+mu- decays, is proposed to correct for charge-dependent curvature biases in spectrometer experiments at hadron colliders. The method is studied assuming a detector with a forward-spectrometer geometry similar to that of the LHCb experiment, and is shown to reliably control several simplified detector mis-alignment configurations. The applicability of the method for use in measurements of precision electroweak observables is evaluated.

Automated summary

A new data-driven method is proposed to correct charge-dependent curvature biases in spectrometer experiments using Z -> mu+mu- decays. The method is studied on a detector with forward-spectrometer geometry similar to LHCb experiment, showing reliable control over several simplified detector mis-alignment configurations. The applicability of the method for precision electroweak observables measurements is evaluated.