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相关论文: Global analysis of fragmentation functions and the…

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Fragmentation functions are determined for the pion and kaon by global analyses of charged-hadron production data in electron-positron annihilation. Accurate measurements were reported by the Belle and BaBar collaborations for the…

高能物理 - 唯象学 · 物理学 2016-09-28 M. Hirai , H. Kawamura , S. Kumano , K. Saito

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…

高能物理 - 唯象学 · 物理学 2019-03-08 M. Soleymaninia , A. N. Khorramian , S. M. Moosavi Nejad , F. Arbabifar

Fitting $Z^0$-pole data from ALEPH and SLD, and TPC data at a lower c.m.s.\ energy, we fix the boundary condition for NLO parton$\to$hadron (hadron$=\pi^\pm, K^\pm, \sum_h h^\pm$) fragmentation functions (FFs) at the low resolution scale of…

高能物理 - 唯象学 · 物理学 2009-10-31 S. Kretzer

We present new sets of pion and kaon fragmentation functions obtained in NLO combined analyses of single-inclusive hadron production in electron-positron annihilation, proton-proton collisions, and deep-inelastic lepton-proton scattering…

高能物理 - 唯象学 · 物理学 2008-11-26 D. de Florian , R. Sassot , M. Stratmann

This talk summarizes the results of a phenomenological analysis of heavy quark fragmentation data published by the CLEO and BELLE collaborations at \sqrt{s} = 10.6 GeV and by the LEP collaborations at \sqrt{s} = 91.2 GeV. Several…

高能物理 - 唯象学 · 物理学 2008-11-26 Matteo Cacciari , Paolo Nason , Carlo Oleari

We present new sets of proton fragmentation functions describing the production of protons from the gluon and each of the quarks, obtained by a global fit to all relevant data sets extracted from the single-inclusive electron-positron…

高能物理 - 唯象学 · 物理学 2016-10-19 S. M. Moosavi Nejad , M. Soleymaninia , A. Maktoubian

We present a determination of fragmentation functions (FFs) for the octet baryon $\Xi ^-/\bar{\Xi}^+$ from data for single inclusive electron-positron annihilation. Our parametrization in this QCD analysis is provided in terms of a Neural…

高能物理 - 唯象学 · 物理学 2022-11-01 Maryam Soleymaninia , Hadi Hashamipour , Hamzeh Khanpour , Hubert Spiesberger

Fragmentation functions (FFs) describe the formation of final state particles from a partonic initial state. Precise knowledge of these functions is a key ingredient in accessing quantities such as the nucleon spin structure in…

核实验 · 物理学 2019-08-13 Martin Leitgab

We present, for the first time, a set of next-to-next-to-leading order (NNLO) fragmentation functions (FFs) describing the production of charmed-meson $D^{*+}$ from partons. Exploiting the universality and scaling violations of FFs, we…

高能物理 - 唯象学 · 物理学 2018-04-19 Maryam Soleymaninia , Hamzeh Khanpour , S. Mohammad Moosavi Nejad

We study the inclusive production of $\Lambda$ ($\bar \Lambda$) in several high energy collision processes ($e^+e^-, e^{\pm}p, \nu (\bar \nu)p, pp$), in view of an accurate determination of the unpolarized and polarized fragmentation…

高能物理 - 唯象学 · 物理学 2009-11-07 Jacques Soffer

We present new sets of pion, kaon, proton and inclusive charged hadron fragmentation functions obtained in NLO combined analyses of single-inclusive hadron production in electron-positron annihilation, proton-proton collisions, and…

高能物理 - 唯象学 · 物理学 2008-11-26 Daniel de Florian , Rodolfo Sassot , Marco Stratmann

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…

高能物理 - 唯象学 · 物理学 2025-07-28 Jun Gao , XiaoMin Shen , Hongxi Xing , Yuxiang Zhao , Bin Zhou

We present new sets of fragmentation functions for protons and inclusive charged hadrons obtained in combined NLO QCD analyses of single-inclusive hadron production in electron-positron annihilation, proton-proton collisions, and…

高能物理 - 唯象学 · 物理学 2008-11-26 Daniel de Florian , Rodolfo Sassot , Marco Stratmann

We present a thorough phenomenological analysis of the experimental data from Belle Collaboration for the transverse $\Lambda$ and $\bar\Lambda$ polarisation, measured in $e^+e^-$ annihilation processes, for the case of inclusive (plus a…

高能物理 - 唯象学 · 物理学 2020-09-09 Umberto D'Alesio , Francesco Murgia , Marco Zaccheddu

The description of the polarized quark hadronization process is one of the most challenging problems in the physics of strong interactions. The various single hadron and dihadron fragmentation functions, that quantify this process, are…

高能物理 - 唯象学 · 物理学 2019-07-22 Aram Kotzinian , Hrayr H. Matevosyan , Anthony W. Thomas

We briefly report our recent progress on the study of the polarized fragmentation functions of $\Lambda$ hyperon in unpolarized semi-inclusive deep-inelastic scatterings and electron-positron annihilations at low energies. In particular, we…

高能物理 - 唯象学 · 物理学 2023-01-18 Shu-yi Wei

The main aim of this paper is to present new sets of non-perturbative fragmentation functions (FFs) for $D^0$ and $D^+$ mesons at next-to-leading (NLO) and, for the first time, at next-to-next-to-leading order (NNLO) in the…

高能物理 - 唯象学 · 物理学 2019-12-17 Maral Salajegheh , S. Mohammad Moosavi Nejad , Maryam Soleymaninia , Hamzeh Khanpour , S. Atashbar Tehrani

We perform a number of improvements to the previous AKK extraction of fragmentation functions for $\pi^\pm$, $K^\pm$, $p/\bar{p}$, $K_S^0$ and $\Lambda/\bar{\Lambda}$ particles at next-to-leading order. Inclusive hadron production…

高能物理 - 唯象学 · 物理学 2010-03-25 S. Albino , B. A. Kniehl , G. Kramer

We present a new extraction of unpolarized Dihadron Fragmentation Functions, which describe the probability density for an unpolarized parton to fragment into a $\pi^+ \pi^-$ pair. Our analysis is based on data from the BELLE collaboration.…

高能物理 - 唯象学 · 物理学 2025-09-16 Virgile Mahaut , Luca Polano , Alessandro Bacchetta , Valerio Bertone , Matteo Cerutti , Marco Radici , Lorenzo Rossi

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),…

高能物理 - 唯象学 · 物理学 2010-03-25 Bernd A. Kniehl
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