Global Analysis of Fragmentation Functions for Eta Mesons
arXiv:1009.6145 · doi:10.1103/PhysRevD.83.034002
Abstract
Fragmentation functions for eta mesons are extracted at next-to-leading order accuracy of QCD in a global analysis of data taken in electron-positron annihilation and proton-proton scattering experiments. The obtained parametrization is in good agreement with all data sets analyzed and can be utilized, for instance, in future studies of double-spin asymmetries for single-inclusive eta production. The Lagrange multiplier technique is used to estimate the uncertainties of the fragmentation functions and to assess the role of the different data sets in constraining them.
11 pages, 8 figures, updated references
References in corpus (11)
- Parton distributions for the LHC
- Implications of CTEQ global analysis for collider observables
- Global analysis of fragmentation functions for pions and kaons and their uncertainties
- Extraction of Spin-Dependent Parton Densities and Their Uncertainties
- Determination of nuclear parton distribution functions and their uncertainties at next-to-leading order
- Global Analysis of Helicity Parton Densities and Their Uncertainties
- Global Analysis of Fragmentation Functions for Protons and Charged Hadrons
- Next-to-Next-to-Leading Order Evolution of Non-Singlet Fragmentation Functions
- On Third-Order Timelike Splitting Functions and Top-Mediated Higgs Decay into Hadrons
- High transverse momentum eta meson production in p+p, d+Au and Au+Au collisions at sqrt(s_NN) = 200 GeV
- (medium-modified) Fragmentation Functions