Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2005-08-15
Physics
High Energy Physics
High Energy Physics - Experiment
10 pages, 0 figures
Scientific paper
The dynamical likelihood method for analysis of high energy collider events is reformulated. The method is to reconstruct the elementary parton state from observed quantities. The basic assumption is that each of final state partons occupies a unit phase space. The parton kinematics is statistically reconstructed using (a) virtual masses of resonant partons and (b) parton kinematic quantities inferred from observed quantities. Generation of (b) is made with the transfer function which is the probability function for parton kinematics from a given set of observables. Corresponding to the unit parton phase space, the transfer variable spaces are also quantized. The likelihood of the reconstructed state is defined by the Poisson probability for a single event with the expected number of event that is the cross section per unit phase space times a luminosity factor. Applications of the method to selection of process, parton-observable identification, determinations of parton kinematics and dynamical parameters are discussed.
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