Physics:Quantum data analysis/Tracking
Tracking reconstructs the trajectories of charged particles from detector hits, usually inside a magnetic field. Track curvature gives momentum, while hit patterns and fitted impact parameters help determine charge, vertices, lifetimes, and particle identity. Tracking is one of the most important measurements in collider experiments because it anchors event reconstruction at high spatial precision.[1]
Track reconstruction
Tracking algorithms associate hits across detector layers and fit them to trajectories. Pattern recognition must handle detector noise, inefficiencies, multiple scattering, overlapping events, and secondary interactions.[1]
Momentum and vertices
A charged particle's curvature in a magnetic field determines its transverse momentum. Tracks are also fitted to primary and secondary vertices, enabling heavy-flavor tagging and lifetime measurements.[2]
Performance
Tracking performance is described by efficiency, fake rate, momentum resolution, impact-parameter resolution, and alignment uncertainties. These quantities are measured with control samples and propagated into physics results.[3][4]
See also
Table of contents (60 articles)
Index
Full contents
References
- ↑ 1.0 1.1 Leo, William R. (1994). Techniques for Nuclear and Particle Physics Experiments. Springer. ISBN 978-3-540-57280-0.
- ↑ "Review of Particle Physics". Physical Review D 110 (3): 030001. 2024. doi:10.1103/PhysRevD.110.030001.
- ↑ "The ATLAS Experiment at the CERN Large Hadron Collider". Journal of Instrumentation 3: S08003. 2008. doi:10.1088/1748-0221/3/08/S08003.
- ↑ "The CMS experiment at the CERN LHC". Journal of Instrumentation 3: S08004. 2008. doi:10.1088/1748-0221/3/08/S08004.
Source attribution: Physics:Quantum data analysis/Tracking
