Inclusive Analysis of the b Quark Fragmentation Function in Z Decays at LEP
The OPAL collaboration
TL;DR
This paper analyzes the b quark fragmentation function in Z decays using OPAL data, comparing models and fitting parameters to understand hadronization, with a precise measurement of the average scaled energy of B hadrons.
Contribution
It provides an inclusive analysis of b quark fragmentation in Z decays, fitting fragmentation models to a large dataset and measuring the average B hadron energy.
Findings
Average scaled energy of B hadrons: 0.7193±0.0016(stat)±0.0031-0.0036(syst)
Comparison of data with theoretical fragmentation models
Fitted parameters for various fragmentation functions
Abstract
A study of b quark hadronisation is presented using inclusively reconstructed B hadrons in about four million hadronic Z decays recorded in 1992-2000 with the OPAL detector at LEP. The data are compared to different theoretical models, and fragmentation function parameters of these models are fitted. The average scaled energy of weakly decaying B hadrons is determined to be <xe>=0.7193+-0.0016(stat)+0.0036-0.0031(syst)
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