Track Finding Efficiency in BaBar
T. Allmendinger, B. Bhuyan, D. N. Brown, H. Choi, S. Christ, R., Covarelli, M. Davier, A. G. Denig, M. Fritsch, A. Hafner, R. Kowalewski, O., Long, A. M. Lutz, M. Martinelli, D. R. Muller, I. M. Nugent, D. Lopes Pegna,, M. V. Purohit, E. Prencipe, J. M. Roney, G. Simi
TL;DR
This paper evaluates the charged track reconstruction efficiency and asymmetry in the BaBar detector through multiple decay-based studies, providing detailed insights into detector performance and stability over time.
Contribution
It introduces comprehensive methods for measuring tracking efficiency and asymmetry in BaBar, including for low momentum tracks and $K_S^0$ particles, with stability analysis over different periods.
Findings
Tracking efficiency varies with decay mode and particle momentum
Asymmetry measurements reveal detector biases
Efficiency remains stable over different running periods
Abstract
We describe several studies to measure the charged track reconstruction efficiency and asymmetry of the BaBar detector. The first two studies measure the tracking efficiency of a charged particle using and initial state radiation decays. The third uses the decays to study the asymmetry in tracking, the fourth measures the tracking efficiency for low momentum tracks, and the last measures the reconstruction efficiency of particles. The first section also examines the stability of the measurements vs BaBar running periods.
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