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Title: Confronting fragmentation function universality with single hadron inclusive production at HERA and e{sup +}e{sup -} 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{sup +}e{sup -} reactions. General good agreement is found when the magnitude Q{sup 2} of the hard photon's virtuality is sufficiently large. The discrepancy at low Q and small scaled momentum x{sub 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{sup +}e{sup -} reactions. The yields of the various hadron species are also calculated.

Authors:
; ; ;  [1]
  1. II. Institute for Theoretical Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg (Germany)
Publication Date:
OSTI Identifier:
21010994
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.75.034018; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DEEP INELASTIC SCATTERING; ELECTRON-POSITRON INTERACTIONS; ELECTRON-PROTON INTERACTIONS; FLAVOR MODEL; FOUR MOMENTUM TRANSFER; HADRONS; HERA STORAGE RING; MULTIPARTICLE SPECTROMETERS; NUCLEAR REACTION YIELD; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PERTURBATION THEORY; PHOTONS; QUANTUM CHROMODYNAMICS; QUARKS; REST MASS

Citation Formats

Albino, S., Kniehl, B. A., Kramer, G., and Sandoval, C.. Confronting fragmentation function universality with single hadron inclusive production at HERA and e{sup +}e{sup -} colliders. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.034018.
Albino, S., Kniehl, B. A., Kramer, G., & Sandoval, C.. Confronting fragmentation function universality with single hadron inclusive production at HERA and e{sup +}e{sup -} colliders. United States. doi:10.1103/PHYSREVD.75.034018.
Albino, S., Kniehl, B. A., Kramer, G., and Sandoval, C.. Thu . "Confronting fragmentation function universality with single hadron inclusive production at HERA and e{sup +}e{sup -} colliders". United States. doi:10.1103/PHYSREVD.75.034018.
@article{osti_21010994,
title = {Confronting fragmentation function universality with single hadron inclusive production at HERA and e{sup +}e{sup -} colliders},
author = {Albino, S. and Kniehl, B. A. and Kramer, G. and Sandoval, C.},
abstractNote = {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{sup +}e{sup -} reactions. General good agreement is found when the magnitude Q{sup 2} of the hard photon's virtuality is sufficiently large. The discrepancy at low Q and small scaled momentum x{sub 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{sup +}e{sup -} reactions. The yields of the various hadron species are also calculated.},
doi = {10.1103/PHYSREVD.75.034018},
journal = {Physical Review. D, Particles Fields},
number = 3,
volume = 75,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 2007},
month = {Thu Feb 01 00:00:00 EST 2007}
}
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