Confronting fragmentation function universality with single hadron inclusive production at HERA and $e^{+}{e}^{-}$ colliders

Abstract

Predictions for light charged hadron production data in the current fragmentation region of deeply inelastic scattering from the H1 and ZEUS experiments are calculated using perturbative Quantum Chromodynamics at next-to-leading order, and using fragmentation functions obtained by fitting to similar data from $e^{+}{e}^{-}$ reactions. General good agreement is found when the magnitude $Q^2$ of the hard photon's virtuality is sufficiently large. The discrepancy at low $Q$ and small scaled momentum $x_p$ is reduced by incorporating mass effects of the detected hadron. By performing quark tagging, the contributions to the overall fragmentation from the various quark flavours in the $ep$ reactions are studied and compared to the contributions in $e^{+}{e}^{-}$ reactions. The yields of the various hadron species are also calculated.

References in corpus (30)

• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Fragmentation Functions for Pions, Kaons, and Protons at Next-to-Leading Order
• MRST2001: partons and alpha_S from precise deep inelastic scattering and Tevatron jet data
• Fragmentation Functions from Flavour-inclusive and Flavour-tagged e^+e^- Annihilations
• Identified hadron spectra at large transverse momentum in p+p and d+Au collisions at \sqrts_NN = 200 GeV
• Fragmentation Functions for Light Charged Hadrons with Complete Quark Flavour Separation
• Testing the Universality of Fragmentation Functions
• Next-to-Leading Order Fragmentation Functions for Pions and Kaons
• Pion and Kaon Production in $e^{+}{e}^{-}$ and $ep$ Collisions at Next-to-Leading Order
• Measurement of D^(*+-) Meson Production and F_2^c in Deep-Inelastic Scattering at HERA
• Measurement of D*+- production in deep inelastic ep scattering at HERA
• Next-To-Leading Order Determination of Fragmentation Functions
• Leading Particle Production in Light Flavour Jets
• Inclusive Charged Particle Distributions in Deep Inelastic Scattering Events at HERA
• Fragmentation Functions for K0short and Lambda with Complete Quark Flavour Separation
• Phenomenology of multiple parton radiation in semi-inclusive deep-inelastic scattering
• O(alpha_s^2) QCD corrections to the electroproduction of hadrons with high transverse momentum
• Measurement of multiplicity and momentum spectra in the current and target regions of the Breit frame in Deep Inelastic Scattering at HERA
• Neutral-Kaon Production in e^+e^-, ep, and p\bar p Collisions at Next-to-Leading Order
• Crossing Heavy-Flavour Thresholds in Fragmentation Functions
• Resummation of Soft Gluon Logarithms in the DGLAP Evolution of Fragmentation Functions
• Evolution of ep Fragmentation and Multiplicity Distributions in the Breit Frame
• Resummation of transverse momentum and mass logarithms in DIS heavy-quark production
• Inclusive Production of Single Hadrons with Finite Transverse Momenta in Deep-Inelastic Scattering at Next-to-Leading Order
• Electroproduction Cross Section of Large_Et Hadrons at NLO and Virtual Photon Structure Function
• An NLO calculation of the electroproduction of large-E_\bot hadrons
• Observation of Scaling Violations in Scaled Momentum Distributions at HERA
• How well does NLO pQCD describe strangeness in $p+p$ collisions at $\sqrt{s}$= 200 GeV in STAR?
• Heavy-Quark Production in the Target Fragmentation Region
• Charged-Meson Production and Scaling Violations of Fragmentation Functions in Deeply Inelastic Scattering at HERA

Cited by in corpus (13)

• Multiplicities of charged pions and kaons from semi-inclusive deep-inelastic scattering by the proton and the deuteron
• Parton-to-Kaon Fragmentation Revisited
• The hadronization of partons
• $B$-hadron fragmentation functions at next-to-next-to-leading order from global analysis of $e^{+}{e}^{-}$ annihilation data
• Bottom-flavored hadrons from top-quark decay at next-to-leading order in the general-mass variable-flavor-number scheme
• (medium-modified) Fragmentation Functions
• Charged Particle Production in High Q2 Deep-Inelastic Scattering at HERA
• Hadron mass corrections in semi-inclusive deep-inelastic scattering
• Hadron mass corrections in semi-inclusive deep inelastic scattering
• Simultaneous extraction of fragmentation functions of light charged hadrons with mass corrections
• Scaled momentum spectra in deep inelastic scattering at HERA
• Factorization breaking in high-transverse-momentum charged-hadron production at the Tevatron?
• Scaled momentum distributions for K0s and Lambda/bar Lambda in DIS at HERA