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Momentum Scale Estimation Using Maximum LikelihoodTemplate Fitting

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Date
2010
Author
Zeng, Yu
Advisor
Banks, David L
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Abstract

A maximum likelihood template fitting procedure is performed by using Upsilon --> mu+mu- events to extract the momentum scale, a scale factor applied to measured momentum, of the CDF detector at Fermilab. The constructed invariant mass spectrum from data events is compared with the invariant mass spectrum from Monte Carlo simulated events, with the momentum scale varying as a free parameter in the simulation. The invariant mass spectrum from simulation which best matches the data spectrum gives the maximum likelihood estimation of the momentum scale. We find the momentum scale is dp/p = (-1.330 ± 0.028(stat) ± 0.099(syst)) × 10^{-3}.

Type
Master's thesis
Department
Statistical Science
Subject
Statistics
maximum likelihood
momentum scale
template fitting
Permalink
https://hdl.handle.net/10161/2497
Citation
Zeng, Yu (2010). Momentum Scale Estimation Using Maximum LikelihoodTemplate Fitting. Master's thesis, Duke University. Retrieved from https://hdl.handle.net/10161/2497.
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