First Monte Carlo analysis of fragmentation functions from single-inclusive $e^{+}{e}^{-}$ annihilation

Abstract

We perform the first iterative Monte Carlo (IMC) analysis of fragmentation functions constrained by all available data from single-inclusive $e^{+}{e}^{-}$ annihilation into pions and kaons. The IMC method eliminates potential bias in traditional analyses based on single fits introduced by fixing parameters not well contrained by the data and provides a statistically rigorous determination of uncertainties. Our analysis reveals specific features of fragmentation functions using the new IMC methodology and those obtained from previous analyses, especially for light quarks and for strange quark fragmentation to kaons.

44 pages, 11 figures

References in corpus (11)

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• Extraction of Spin-Dependent Parton Densities and Their Uncertainties
• Parton-to-Pion Fragmentation Reloaded
• Determination of fragmentation functions and their uncertainties
• Parton Fragmentation Functions
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Cited by in corpus (4)

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• Using hadron-in-jet data in a global analysis of $D^{\ast }$ fragmentation functions
• Fragmentation Functions Beyond Fixed Order Accuracy
• Impact of unidentified light charged hadron data on the determination of pion fragmentation functions