Physics:Quantum data analysis/Kinematics of Particle Collisions
Kinematics of particle collisions describes the energy, momentum, angular, and invariant quantities used to reconstruct and interpret events. It is the bridge between raw detector objects and physics statements: nearly every selection, fit, search region, and measurement is expressed in kinematic variables. Good kinematic choices separate signal from background while remaining robust against detector effects.[1]
Invariant quantities
Invariant mass, transverse mass, and angular separations are widely used because they expose resonances, decay constraints, and event topology. They also reduce dependence on unknown boosts or incomplete longitudinal information.[1]
Hadron-collider variables
Transverse momentum, rapidity, pseudorapidity, azimuth, missing transverse momentum, and scalar sums of transverse energy are natural variables for collider detectors with beam-axis symmetry.[2]
Complex observables
Modern analyses combine basic kinematic variables into event shapes, multivariate discriminants, reconstructed masses, and constrained fits. These observables must be validated with simulation and control data.[3]
See also
Table of contents (60 articles)
Index
Full contents
References
- ↑ 1.0 1.1 Griffiths, David J. (2008). Introduction to Elementary Particles (2nd ed.). Wiley-VCH. ISBN 978-3-527-40601-2.
- ↑ Halzen, Francis; Martin, Alan D. (1984). Quarks and Leptons: An Introductory Course in Modern Particle Physics. Wiley. ISBN 978-0-471-88741-6.
- ↑ Cowan, Glen (1998). Statistical Data Analysis. Oxford University Press. ISBN 978-0-19-850156-5.
Source attribution: Physics:Quantum data analysis/Kinematics of Particle Collisions
