Transverse parton distribution and fragmentation functions at NNLO: the gluon case
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep01(2020)040
Abstract: We calculate in this paper the perturbative gluon transverse momentum dependent parton distribution functions (TMDPDFs) and fragmentation functions (TMDFFs) using the exponential regulator for rapidity divergences. We obtain results for both unpolarized and linearly polarized… read more here.
Keywords: fragmentation functions; parton distribution; linearly polarized;
Transverse parton distribution and fragmentation functions at NNLO: the quark case
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2019)083
Abstract: Abstract We revisit the calculation of perturbative quark transverse momentum de- pendent parton distribution functions and fragmentation functions using the exponential regulator for rapidity divergences. We show that the exponential regulator provides a consistent framework… read more here.
Keywords: parton distribution; exponential regulator; fragmentation functions;
Improved constraints on pion fragmentation functions from simulated electron-ion collider data
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review D"
DOI: 10.1103/gm92-w63j
Abstract: We present a quantitative assessment of the anticipated impact of future Electron-Ion Collider (EIC) measurements on the extraction of parton-to-pion fragmentation functions (FFs). Our analysis combines simulated semi-inclusive deep-inelastic scattering (SIDIS) pseudo-data at EIC energies… read more here.
Keywords: electron ion; fragmentation functions; pion fragmentation; ion collider ... See more keywords
Determination of meson fragmentation functions in the Field-Feynman model
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review C"
DOI: 10.1103/physrevc.107.055202
Abstract: We study the fragmentation functions of both pions and kaons in the Field-Feynman recursive model with the extended SU(2) flavor symmetry relations of fragmentation functions and fitting parameters. Parametrizations are determined from a leading-order (LO)… read more here.
Keywords: fragmentation functions; fragmentation; field feynman; meson fragmentation ... See more keywords
Strange quark suppression from a simultaneous Monte Carlo analysis of parton distributions and fragmentation functions
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.074020
Abstract: We perform the first simultaneous extraction of unpolarized parton distributions and fragmentation functions from a Monte Carlo analysis of inclusive and semi-inclusive deep-inelastic scattering, Drell-Yan lepton-pair production, and single-inclusive $e^+ e^-$ annihilation data. We use… read more here.
Keywords: monte carlo; strange quark; parton; fragmentation functions ... See more keywords
First NNLO fragmentation functions of KS0 and Λ/Λ¯ and their uncertainties in the presence of hadron mass corrections
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.114029
Abstract: The current paper presents a determination of $K^0_S$ and $\Lambda/\bar{\Lambda}$ fragmentation functions (FFs) from QCD analysis of single-inclusive electron-positron annihilation process (SIA). Our FFs determinations are performed at next-to-leading order (NLO), and for the first… read more here.
Keywords: mass corrections; fragmentation functions; hadron mass; order ... See more keywords
Constraining fragmentation functions through hadron-photon production at higher-orders
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review D"
DOI: 10.1103/physrevd.107.096002
Abstract: 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 advanced fitting techniques. Constraining the parameters… read more here.
Keywords: constraining fragmentation; fragmentation functions; production; photon ... See more keywords
QCD factorization with multihadron fragmentation functions
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.111.056001
Abstract: Important aspects of quantum chromodynamics (QCD) factorization theorems are the properties of the objects involved that can be identified as universal. One example is that the definitions of parton densities and fragmentation functions for different… read more here.
Keywords: fragmentation; fragmentation functions; hadron; multihadron ... See more keywords
Role of transverse momentum dependence of unpolarized parton distribution and fragmentation functions in the analysis of azimuthal spin asymmetries
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.094023
Abstract: Information on the Sivers distribution and the Collins fragmentation functions and their transverse momentum dependence is mainly based on fitting single-spin asymmetry data from semi-inclusive deep inelastic scattering (SIDIS). Independent information on the Sivers distribution… read more here.
Keywords: fragmentation functions; spin; transverse momentum; distribution ... See more keywords
Parity-odd fragmentation functions
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Modern Physics A"
DOI: 10.1142/s0217751x19501446
Abstract: Quantum chromodynamics is a non-Abelian gauge theory of strong interactions, in which the parity symmetry can be violated by the nontrivial [Formula: see text]-vacuum tunneling effects. The [Formula: see text]-vacuum induces the local parity-odd domains.… read more here.
Keywords: odd fragmentation; parity odd; fragmentation; parity ... See more keywords