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Related papers: Theoretical aspects of hadron photoproduction

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We summarize the key results of a recent global analysis of inclusive single-charged-hadron production in high-energy colliding-beam experiments. In the framework of the parton model of quantum chromodynamics at next-to-leading order (NLO),…

High Energy Physics - Phenomenology · Physics 2010-03-25 Bernd A. Kniehl

We study inclusive photoproduction of hadrons at HERA via both direct and resolved photons to next-to-leading order (NLO) in the QCD-improved parton model. We predict transverse-momentum ($\pt$) and rapidity ($\ylab$) distributions and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Bernd A. Kniehl

We present new sets of fragmentation functions for charged pions and kaons, both at leading and next-to-leading order. They are fitted to data on inclusive charged-hadron production in $e^+e^-$ annihilation taken by TPC at PEP ($\sqrt…

High Energy Physics - Phenomenology · Physics 2010-11-01 J. Binnewies , B. A. Kniehl , G. Kramer

We review the description of inclusive single unpolarized light hadron production using fragmentation functions in the framework of the factorization theorem. We summarize the factorization of quantities into perturbatively calculable…

High Energy Physics - Phenomenology · Physics 2010-12-06 Simon Albino

We present new sets of fragmentation functions for charged pions and kaons, both at leading and next-to-leading order. They are fitted to TPC data taken at energy $\sqrt s=29$~GeV and describe excellently a wealth of other $e^+e^-$ data on…

High Energy Physics - Phenomenology · Physics 2009-10-28 J. Binnewies , B. A. Kniehl , G. Kramer

In certain situations, such as one-particle inclusive processes, it is possible to model the hadronization through Fragmentation Functions (FFs), which are universal non-perturbative functions extracted from experimental data through…

High Energy Physics - Phenomenology · Physics 2023-05-17 Salvador A. Ochoa-Oregon , David F. Rentería-Estrada , Roger J. Hernández-Pinto , German F. R. Sborlini

We review recent results on the inclusive electroproduction of light hadrons at next-to-leading order in the parton model of quantum chromodynamics implemented with fragmentation functions and present updated predictions for HERA…

High Energy Physics - Phenomenology · Physics 2015-06-25 Bernd A. Kniehl

We study the inclusive photoproduction of neutral and charged pions and $\eta$ at HERA, via the resolved photon mechanism, in QCD to next-to-leading order. We present various distributions of phenomenological interest and study the…

High Energy Physics - Phenomenology · Physics 2009-09-25 M. Greco , S. Rolli , A. Vicini

We review recent results on the inclusive electroproduction of light hadrons at next-to-leading order in the parton model of quantum chromodynamics implemented with fragmentation functions and present updated predictions for HERA…

High Energy Physics - Phenomenology · Physics 2017-08-23 Bernd A. Kniehl

We present the first global analysis of fragmentation functions (FFs) for light charged hadrons ($\pi^{\pm}$, $K^{\pm}$) at full next-to-next-to-leading order in Quantum Chromodynamics (QCD), incorporating world data from both…

High Energy Physics - Phenomenology · Physics 2025-07-28 Jun Gao , XiaoMin Shen , Hongxi Xing , Yuxiang Zhao , Bin Zhou

We present a detailed phenomenological analysis of single-inclusive hadron production at the CERN-LHC in both proton-proton and proton-lead collisions. First data from the LHC experiments on charged hadron spectra are compared to…

High Energy Physics - Phenomenology · Physics 2014-11-21 M. Stratmann , R. Sassot , P. Zurita

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…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Albino , B. A. Kniehl , G. Kramer , C. Sandoval

We study the photoproduction of a D^{*+-} meson in association with a hadron jet at next-to-leading order in the parton model of QCD with non-perturbative fragmentation functions extracted from LEP1 data of e^+e^- annihilation. The…

High Energy Physics - Phenomenology · Physics 2009-11-10 Gudrun Heinrich , Bernd A. Kniehl

Using fragmentation functions for charged pions, charged kaons, and (anti)protons recently extracted from experimental data of e^+e^- annihilation at the Z-boson resonance and at centre-of-mass energy root(s) = 29 GeV, we perform a global…

High Energy Physics - Phenomenology · Physics 2014-11-17 B. A. Kniehl , G. Kramer , B. Poetter

We propose a novel method for extracting non-singlet (NS) fragmentation functions (FFs) of light charged hadrons from charge asymmetries measured in hadron fragmentation, using data from both single-inclusive electron-positron annihilation…

High Energy Physics - Phenomenology · Physics 2026-04-06 Jun Gao , ChongYang Liu , Bin Zhou

We present new sets of next-to-leading order fragmentation functions describing the production of charged pions, kaons and protons from the gluon and from each of the quarks, obtained by fitting to all relevant data sets from e+ e-…

High Energy Physics - Phenomenology · Physics 2010-04-06 S. Albino , B. A. Kniehl , G. Kramer

We present new functional form of pion and kaon fragmentation functions up to next-to-leading order obtained through a global fit to single-inclusive electron-positron annihilation data and also employ, the semi-inclusive deep inelastic…

High Energy Physics - Phenomenology · Physics 2019-03-08 M. Soleymaninia , A. N. Khorramian , S. M. Moosavi Nejad , F. Arbabifar

We present a detailed study of photon production in hadronic events in electron-positron annihilation at LEP energies. We show that estimates of the inclusive photon spectrum using the quark-to-photon fragmentation function determined using…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Gehrmann-De Ridder , E. W. N. Glover

We calculate the next-to-leading order QCD corrections to the `direct' part of the spin-dependent cross section for single-inclusive charged-hadron photoproduction. This process could be studied experimentally in future polarized…

High Energy Physics - Phenomenology · Physics 2011-07-19 D. de Florian , W. Vogelsang

I present a preliminary determination of the Fragmentation Functions (FFs) of unidentified charged hadrons at next-to-leading order in quantum chromodynamics. The analysis is based on hadron production cross section data in single-inclusive…

High Energy Physics - Phenomenology · Physics 2017-09-12 Emanuele R. Nocera
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