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Transverse parton momenta in single inclusive hadron production in ${e^ + }{e^ - }$ annihilation processes
High Energy Physics - Phenomenology · Submitted 28 Apr 2017
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Although the only available experimental data are scarce and quite old, we find that the fundamental features of transverse momentum dependent (TMD) evolution, historically addressed in Drell-Yan processes and, more recently, in Semi-inclusive deep inelastic scattering processes, are visible in ${e^ + }{e^ - }$ annihilations as well.
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The abstract, sentence by sentence
We study the transverse momentum distributions of single inclusive hadron production in ${e^ + }{e^ - }$ annihilation processes. Although the only available experimental data are scarce and quite old, we find that the fundamental features of transverse momentum dependent (TMD) evolution, historically addressed in Drell-Yan processes and, more recently, in Semi-inclusive deep inelastic scattering processes, are visible in ${e^ + }{e^ - }$ annihilations as well. Interesting effects related to its non-perturbative regime can be observed. We test two different parameterizations for the $p_\perp$ dependence of the cross section: the usual Gaussian distribution and a power-law model. We find the latter to be more appropriate in describing this particular set of experimental data, over a relatively large range of $p_\perp$ values. We use this model to map some of the features of the data within the framework of TMD evolution, and discuss the caveats of this and other possible interpretations, related to the one-dimensional nature of the available experimental data.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We study the transverse momentum distributions of single inclusive hadron production in ${e^ + }{e^ - }$ annihilation processes. | contribution 0.98 | 0.88 | 0.04 | asserted 0.80 |
| s1 | Although the only available experimental data are scarce and quite old, we find that the fundamental features of transverse momentum dependent (TMD) evolution, historically addressed in Drell-Yan processes and, more recently, in Semi-inclusive deep inelastic scattering processes, are visible in ${e^ + }{e^ - }$ annihilations as well. | result 0.92 | 0.90 | 0.39 | asserted 1.00 |
| s2 | Interesting effects related to its non-perturbative regime can be observed. | result 0.95 | 0.74 | 0.08 | asserted 0.92 |
| s3 | We test two different parameterizations for the $p_\perp$ dependence of the cross section: the usual Gaussian distribution and a power-law model. | method 0.98 | 0.92 | 0.04 | asserted 0.97 |
| s4 | We find the latter to be more appropriate in describing this particular set of experimental data, over a relatively large range of $p_\perp$ values. | result 1.00 | 0.97 | 0.45 | asserted 1.00 |
| s5 | We use this model to map some of the features of the data within the framework of TMD evolution, and discuss the caveats of this and other possible interpretations, related to the one-dimensional nature of the available experimental data. | limitation 0.47 | 0.91 | 0.18 | asserted 0.86 |
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The paper
Original abstract
We study the transverse momentum distributions of single inclusive hadron production in ${e^ + }{e^ - }$ annihilation processes. Although the only available experimental data are scarce and quite old, we find that the fundamental features of transverse momentum dependent (TMD) evolution, historically addressed in Drell-Yan processes and, more recently, in Semi-inclusive deep inelastic scattering processes, are visible in ${e^ + }{e^ - }$ annihilations as well. Interesting effects related to its non-perturbative regime can be observed. We test two different parameterizations for the $p_\perp$ dependence of the cross section: the usual Gaussian distribution and a power-law model. We find the latter to be more appropriate in describing this particular set of experimental data, over a relatively large range of $p_\perp$ values. We use this model to map some of the features of the data within the framework of TMD evolution, and discuss the caveats of this and other possible interpretations, related to the one-dimensional nature of the available experimental data.
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References
How the literature uses it
16 arXiv papers cite this in 20 sentences
Papers citing it · 12 sentences without a confident label
Uses its method or tool 1 paper
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Following the analyses of Refs. [ref] we use the Gaussian form which is the most commonly parametrization for TMD FFs and widely used in the QCD analysis of Drell-Yan, SIDIS and also SIA processes,
Transverse momentum dependent of charged pion, kaon and proton/antiproton fragmentation functions from $e^+e^-$ annihilation process · Fitting methodology and SK19 TMD FFs parametrization · 0.91
Uses its data or values 1 paper
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For the $g_K$ function, we use the one extracted in Ref. [ref] : [equation] For what concerns the $Λ$ unpolarized FF, for $M_D$ we use a Power-Law model, see Refs. [ref] : [equation] with $p=2$ and $m=1 GeV$.
Transverse $\Lambda$ polarization in $e^+e^-$ annihilations and in SIDIS processes at the EIC within TMD factorization · Two-hadron production data fit: charm and $SU(2)$ isospin symmetry · 0.93
Cites it as background 6 papers
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The cross section for the production of a $Λ$ hyperon with spin polarisation vector $$ or $$ in $e^+e^-$ annihilation, can be written, assuming TMD factorisation at leading order [ref] , as a convolution of the elementary annihilation cross section ($dσ̂^q$) and the fragmentation function:
The Polarising Fragmentation Function and the Lambda polarisation in e+ e- processes · Formalism and simple analytical results for $P_Λ$ · 0.86
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We note that some phenomenological analyses have been performed on $e^+e^-→h X$ data [ref] , where some subsets of TASSO [ref] , PLUTO [ref] , MARKII [ref] , AMY [ref] , CELLO [ref] data and the more recent BELLE [ref] measurements have been considered.
Transverse Momentum Dependent Fragmentation Functions from recent BELLE data · Introduction · 0.92
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Unpolarized SIDIS is however, only one component in a broad program of phenomenolical studies where the universality of parton correlation functions plays a central role in testing pictures of nucleon structure [ref] .
Large Transverse Momentum in Semi-Inclusive Deeply Inelastic Scattering Beyond Lowest Order · Conclusion · 0.93
What it cites · 14 sentences without a confident label
Uses the method or tool of 7 papers
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For our analysis we adopt the usual choices [ref] , $μ→Q$, $ζ_D→Q^2$ and $μ_b=2 e^-γ_E/b_*$, where $γ_E$ is the Euler-Mascheroni constant.
TMD Parton Distribution and Fragmentation Functions with QCD Evolution · Formalism · 0.93
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for which we have used the results of the Appendices in Ref. [ref] .
Limits on TMD Evolution From Semi-Inclusive Deep Inelastic Scattering at Moderate $Q$ · Formalism · 0.87
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For this purpose, our main tool is an analysis based on a simple partonic picture in which the cross section is factorized, as in Refs. [ref] .
The role of Cahn and Sivers effects in Deep Inelastic Scattering · Final remarks · 0.98
Uses data or values from 1 paper
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D_q^h(z,p_⊥)= D_q^h(z) h(p_⊥) , where $D_q^h(z)$ is the collinear, unpolarized FF (which we take from Ref. [ref] ).
Global Analysis of Fragmentation Functions for Protons and Charged Hadrons · Data fitting and results · 0.94
Cites as background 11 papers
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Details on the various ingredients of Eq. [ref] can be found in Refs. [ref] .
TMD Parton Distribution and Fragmentation Functions with QCD Evolution · Formalism · 0.95
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Relevant recent literature on this and other $e^+e^-$ related subjects are presented in Refs. [ref] .
Effects of TMD evolution and partonic flavor on $e^+e^-$ annihilation into hadrons · Introduction · 0.98
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Relevant recent literature on this and other $e^+e^-$ related subjects are presented in Refs. [ref] .
Collins functions for pions from SIDIS and new e+e- data: a first glance at their transverse momentum dependence · Introduction · 0.98
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