Model for the curvature response of the CDF II drift chamber

TL;DR

This paper presents a model for the curvature response of the CDF II drift chamber, aiding in precise momentum measurement calibration for high-momentum particles in particle physics experiments.

Contribution

The paper introduces a new model for drift chamber response based on cosmic-ray data and published information, improving calibration robustness.

Findings

Model constraints derived from cosmic-ray data and published CDF information.

Calibration procedure robustness demonstrated.

Framework applicable to high-momentum particle tracking.

Abstract

The CDF II experiment at the Fermilab Tevatron used a drift chamber to measure the momenta of charged particles. We present a model for the response of the drift chamber to the curvature of a charged particle's trajectory. Constraints on the model parameters are obtained from cosmic-ray data and from information published by CDF in the context of the W boson mass measurement. Implications for the calibration of the drift chamber measurement of momentum are discussed. The robustness of the CDF calibration procedure is demonstrated. The model provides a framework for the analysis of precision magnetic trackers of high-momentum particles.