Marco Stratmann

TL;DR: In this article, the pion and kaon fragmentation functions obtained in next-to-leading order combined analyses of single-inclusive hadron production in electron-positron annihilation, proton-proton collisions, and deep-inelastic leptonproton scattering with either pions or kaons identified in the final state.

TL;DR: In this paper, the spin-dependent parton distributions and their uncertainties from data for polarized deep-inelastic lepton-nucleon and proton-proton scattering were extracted by means of a global QCD analysis.

TL;DR: Evidence is found for a rather small gluon polarization in the nucleon, over a limited region of momentum fraction, and for interesting flavor patterns in the polarized sea.

TL;DR: In this article, the Lagrange multiplier technique is used to assess the uncertainties in the extraction of the new sets of fragmentation functions, which complement previous results for pion and kaon fragmentation functions with charge and flavor discrimination.

TL;DR: A ten-week program on "Gluons and the quark sea at high-energies", which took place at the Institute for Nuclear Theory in Seattle in Fall 2010, has been described in this paper, where the principal aim was to develop and sharpen the science case for an Electron-Ion Collider (EIC), a facility that will be able to collide electrons and positrons with polarized protons and with light to heavy nuclei at high energies.