High Energy Physics - Phenomenology · arXiv:1003.1084 v2 · submitted 4 Mar 2010
The non-singlet kaon fragmentation function from e^+e^- kaon production
The paper says
“We find that the kaon non-singlet fragmentation function at large z is larger than that obtained by the other collaborations from global fit analysis and differs significantly at low z.”
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Abstract
We perform fits to the available charged and neutral kaon production data in e+ + e− → K + X, K = K±andK0S, and determine the non-singlet combination of kaon fragmentation functions DuK±−DdK± in a model independent way and without any correlations to the other fragmentation functions. Only nuclear isospin invariance is assumed. Working with non-singlets allows us to include the data at very low momentum fractions, which have so far been excluded in global fits, and to perform a first NNLO fit to fragmentation functions. We find that the kaon non-singlet fragmentation function at large z is larger than that obtained by the other collaborations from global fit analysis and differs significantly at low z.
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abstract compiled · 2026-09-23 · no language-model review
How the main claim is stated: asserted 1.00
What the abstract itself states, as probabilities: claims first 0.75 · states limitation 0.28 · human participants 0.01 · controlled comparison 0.16 · randomized assignment 0.01 · states quantitative result 0.12 · compares with prior results 0.97 · mentions code or data availability 0.02
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This table labels the abstract only (arXiv listing abstract v2). The number is the probability the classifier gave the label.
| Sentence | Role | The authors' own work | States the main conclusion | Strength |
|---|---|---|---|---|
| We perform fits to the available charged and neutral kaon production data in $e^++e^-\to K+X$, $K=K^\pm and K^0_S$, and determine the non-singlet combination of kaon fragmentation functions $D_u^{K^\pm}-D_d^{K^\pm}$ in a model independent way and without any correlations to the other fragmentation functions. | contribution 0.75 | 0.97 | 0.20 | asserted 1.00 |
| Only nuclear isospin invariance is assumed. | method 0.78 | 0.36 | 0.03 | asserted 0.99 |
| Working with non-singlets allows us to include the data at very low momentum fractions, which have so far been excluded in global fits, and to perform a first NNLO fit to fragmentation functions. | contribution 0.67 | 0.79 | 0.08 | asserted 0.95 |
| We find that the kaon non-singlet fragmentation function at large $z$ is larger than that obtained by the other collaborations from global fit analysis and differs significantly at low $z$. | result 1.00 | 0.95 | 0.80 | asserted 1.00 |
What kind of paper the classifier reports this is: empirical study 0.52 · evidence from analysis of existing data 1.00
What was examined, and what was not
Sources read
- arXiv listing abstract v2
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- full text
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- references and citing sentences
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- P abstract
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- S sections
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- C citations
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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,742 input tokens, $0.0002 reported.
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How the literature uses it
3 arXiv papers cite this in 4 sentences
Papers citing it · 1 sentence without a confident label
Compares with it 1 paper
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In contrast, other studies [ref] in, say, the pseudo-scalar meson sector, fit individual data on different mesons with no attempt made to combine the data in any way whatsoever.
Study of vector meson fragmentation using a broken SU(3) model · Introduction · 0.91
Cites it as background 2 papers
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While there exist many phenomenological studies on $π$ and $K$ meson [ref] and $η$ fragmentation [ref] , as well as many comprehensive reviews [ref] of these, the issue of vector meson hadro-production has not been addressed so far.
Study of vector meson fragmentation using a broken SU(3) model · Introduction · 0.97
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A number of analyses are available for fragmentation of pseudoscalar mesons and baryons till date; see, for example, Ref. [ref] for $π$, Refs. [ref] for $K$ meson, Refs. [ref] for proton, and Refs. [ref] for $η$ fragmentation with comprehensive reviews in Refs. [ref] as well.
Fragmentation of $\omega$ and $\phi$ Mesons in $e^+ e^-$ and $p p$ Collisions at NLO · Introduction · 1.00
What it cites · 15 sentences without a confident label
Uses the method or tool of 11 papers
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In this paper we apply the model independent approach of [ref] to the available data on $K^±$ and $K^0_S$ production in $e^+e^-$ annihilation and determine the kaon non singlet $D_u^K^±-D_d^K^±$.
Towards a model independent approach to fragmentation functions · Introduction · 0.82
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([ref]), which we are calculating and which enters the factorization theorem, are related to the measurable ones $dσ/dx_p$ and $dσ/dx_E$ via [ref] : dσ/dx_p (x_p,s) = 1/1+m_h^2/[sx^2(x_p)] dσ/dx(x(x_p),s) dσ/dx_E (x_E,s) = 1/1-m_h^2/[sx^2(x_E)] dσ/dx(x(x_E),s), where $dσ$ stands for either $dσ^K^±$ or $dσ^K^0_S$.
Resummation of Soft Gluon Logarithms in the DGLAP Evolution of Fragmentation Functions · Method of analysis of $K^±$ and $K^0_S$ data simultaneously · 1.00
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Resummation in the quark cross section (or quark coefficient function) is obtained from the method of Ref. [ref] and the results for the unfactorized partonic cross section in Ref. [ref] , while resummation in the evolution is performed according to the method in Ref. [ref] .
Soft-Gluon Resummation for the Fragmentation of Light and Heavy Quarks at Large x · Analysis of $K_S^0$ and $K^±$ · 0.98
Uses data or values from 5 papers
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In our analysis we shall use all available $K^±$ and $K^0_S$ production data presented by the different collaborations TASSO [ref] — [ref] , MARK II [ref] , TPC [ref] , HRS [ref] , CELLO [ref] , TOPAZ [ref] , ALEPH [ref] , DELPHI [ref] , OPAL [ref] — [ref] and SLD [ref] at different values of $s$.
Measurement of inclusive particle spectra and test of MLLA prediction in $e^+e^-$ annihilation at $\sqrt{s}$=58GeV · Our formalism · 1.00
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In our analysis we shall use all available $K^±$ and $K^0_S$ production data presented by the different collaborations TASSO [ref] — [ref] , MARK II [ref] , TPC [ref] , HRS [ref] , CELLO [ref] , TOPAZ [ref] , ALEPH [ref] , DELPHI [ref] , OPAL [ref] — [ref] and SLD [ref] at different values of $s$.
Leading Particle Production in Light Flavour Jets · Our formalism · 1.00
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In our analysis we shall use all available $K^±$ and $K^0_S$ production data presented by the different collaborations TASSO [ref] — [ref] , MARK II [ref] , TPC [ref] , HRS [ref] , CELLO [ref] , TOPAZ [ref] , ALEPH [ref] , DELPHI [ref] , OPAL [ref] — [ref] and SLD [ref] at different values of $s$.
Multiplicities of pizero, eta, Kzero and of charged particles in quark and gluon jets · Our formalism · 1.00
Compares with 1 paper
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However, the kaon mass, both in NLO and NNLO, is significantly lower than the one obtained in the phenomenological description of the $K^0_S$ data (see Table [ref]) only, i.e. without perturbative QCD, also it is significantly lower than the value 343 MeV obtained in Ref. [ref] .
AKK Update: Improvements from New Theoretical Input and Experimental Data · Analysis of $K_S^0$ and $K^±$ · 0.89
Cites as support 1 paper
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As shown in the AKK08 fit [ref] , this significantly improves fits to charged kaon data at large $x$.
AKK Update: Improvements from New Theoretical Input and Experimental Data · Analysis of $K_S^0$ and $K^±$ · 0.97
Cites as background 7 papers
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At present several sets of FFs are available in the literature [ref] , such as Kretzer [ref] , Kniehl-Kramer-Potter (KKP) [ref] , Hirai-Kumano-Nagai-Sudoh (HKNS) [ref] , de Florian-Sassot-Stratmann (DSS) [ref] , Albino-Kniehl-Kramer (AKK,AKK08) [ref] , etc.
Global Analysis of Fragmentation Functions for Protons and Charged Hadrons · Introduction · 1.00
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At present several sets of FFs are available in the literature [ref] , such as Kretzer [ref] , Kniehl-Kramer-Potter (KKP) [ref] , Hirai-Kumano-Nagai-Sudoh (HKNS) [ref] , de Florian-Sassot-Stratmann (DSS) [ref] , Albino-Kniehl-Kramer (AKK,AKK08) [ref] , etc.
AKK Update: Improvements from New Theoretical Input and Experimental Data · Introduction · 1.00
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At present several sets of FFs are available in the literature [ref] , such as Kretzer [ref] , Kniehl-Kramer-Potter (KKP) [ref] , Hirai-Kumano-Nagai-Sudoh (HKNS) [ref] , de Florian-Sassot-Stratmann (DSS) [ref] , Albino-Kniehl-Kramer (AKK,AKK08) [ref] , etc.
The hadronization of partons · Introduction · 1.00
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