Simultaneous extraction of fragmentation functions of light charged hadrons with mass corrections

Abstract

Achieving the highest possible precision for theoretical predictions at the present and future high-energy lepton and hadron colliders requires a precise determination of fragmentation functions (FFs) of light and heavy charged hadrons from a global QCD analysis with great accuracy. We describe a simultaneous determination of unpolarized FFs of charged pions, charged kaons and protons/antiprotons from single-inclusive hadron production in electron-positron annihilation (SIA) data at next-to-leading order and next-to-next-to-leading order accuracy in perturbative QCD. A new set of FFs, called {\tt SGKS20}, is presented. We include data for identified light charged hadrons (${\pi }^{\pm },K^{\pm }$ and $p/\bar{p}$) as well as for unidentified light charged hadrons, $h^{\pm }$ and show that these data have a significant impact on both size and uncertainties of the fragmentation functions. We examine the inclusion of higher-order perturbative QCD corrections and finite-mass effects. We compare the new {\tt SGKS20} FFs with other recent FFs available in the literature and find in general reasonable agreement, but also important differences for some parton species. We show that theoretical predictions obtained from our new FFs are in very good agreement with the analyzed SIA data, especially at small values of $z$. The {\tt SGKS20} FF sets presented in this work are available via the {\tt LHAPDF} interface.

arXiv comment19 pages, 14 Figures and 4 Tables; Accepted for publication in Physical Review D

References in corpus (40)

• Parton distributions for the LHC
• LHAPDF6: parton density access in the LHC precision era
• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• nCTEQ15 - Global analysis of nuclear parton distributions with uncertainties in the CTEQ framework
• Study of high-pT charged particle suppression in PbPb compared to pp collisions at sqrt(sNN)=2.76 TeV
• Fragmentation Functions for Pions, Kaons, and Protons at Next-to-Leading Order
• Uncertainties of predictions from parton distribution functions II: the Hessian method
• APFEL: A PDF Evolution Library with QED corrections
• AKK Update: Improvements from New Theoretical Input and Experimental Data
• Uncertainties of Predictions from Parton Distribution Functions I: the Lagrange Multiplier Method
• Global Analysis of Fragmentation Functions for Protons and Charged Hadrons
• Parton-to-Pion Fragmentation Reloaded
• First simultaneous extraction of spin-dependent parton distributions and fragmentation functions from a global QCD analysis
• Determination of fragmentation functions and their uncertainties
• Inclusive cross section and double helicity asymmetry for π^0 production in p+p collisions at sqrt(s)=200 GeV: Implications for the polarized gluon distribution in the proton
• A determination of the fragmentation functions of pions, kaons, and protons with faithful uncertainties
• Non--Singlet QCD Analysis of Deep Inelastic World Data at \boldmath $O({\alpha }_s^3)$
• PDF Nuclear Corrections for Charged Lepton and Neutrino Deep Inelastic Scattering Processes
• Multivariate Fitting and the Error Matrix in Global Analysis of Data
• Nuclear corrections in neutrino-nucleus DIS and their compatibility with global NPDF analyses
• Parton-to-Kaon Fragmentation Revisited
• Energy Dependence of the Transverse Momentum Distributions of Charged Particles in pp Collisions Measured by ALICE
• Measurement of Particle Production and Inclusive Differential Cross Sections in pbar{p} Collisions at sqrt{s}=1.96 TeV
• Charged particle transverse momentum spectra in pp collisions at sqrt(s) = 0.9 and 7 TeV
• Production of charged pions, kaons and protons in e+e- annihilations into hadrons at sqrt{s} = 10.54 GeV
• Production of pi+, pi-, K+, K-, p and p-bar in Light (uds), c and b Jets from Z0 Decays
• Precision measurement of charged pion and kaon differential cross sections in electron-positron annihilation at Q = 10.52 GeV
• First Monte Carlo analysis of fragmentation functions from single-inclusive $e^{+}{e}^{-}$ annihilation
• Fragmentation Functions at Next-to-Next-to-Leading Order Accuracy
• Measurements of Flavour Dependent Fragmentation Functions in Z^0 -> qq(bar) Events
• Neutral pion cross section and spin asymmetries at intermediate pseudorapidity in polarized proton collisions at sqrt{s} = 200 GeV
• Determination of pion and kaon fragmentation functions including spin asymmetries data in a global analysis
• Proton fragmentation functions considering finite-mass corrections
• First determination of $D^{\ast +}$-meson fragmentation functions and their uncertainties at next-to-next-to-leading order
• First global QCD analysis of charged hadron fragmentation functions and their uncertainties at next-to-next-to-leading order
• Fragmentation Functions Beyond Fixed Order Accuracy
• Confronting fragmentation function universality with single hadron inclusive production at HERA and $e^{+}{e}^{-}$ colliders
• Impact of unidentified light charged hadron data on the determination of pion fragmentation functions
• Heavy quark mass effects in parton-to-kaon hadronization probabilities
• Determination of contributions from residual light charged hadrons to inclusive charged hadrons from $e^{+}{e}^{-}$ annihilation data

Cited by in corpus (7)

• Global analysis of fragmentation functions to charged hadrons with high-precision data from the LHC
• First simultaneous global QCD analysis of dihadron fragmentation functions and transversity parton distribution functions
• Neural Network QCD analysis of charged hadron Fragmentation Functions in the presence of SIDIS data
• Single-inclusive hadron production in electron-positron annihilation at next-to-next-to-next-to-leading order in QCD
• Global analysis of fragmentation functions to light neutral hadrons
• First NNLO fragmentation functions of $K_S^0$ and $\Lambda /\bar{\Lambda }$ and their uncertainties in the presence of hadron mass corrections
• QCD analysis of pion fragmentation functions in the xFitter framework