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;
Systematic studies for the nuclear parton distribution with photon and hadron productions in nuclear collisions at the LHC
Sign Up to like & getrecommendations! Published in 2023 at "Chinese Physics C"
DOI: 10.1088/1674-1137/accad6
Abstract: A systematic study of the impact of widely-used nuclear-modified parton distribution function (nPDF) parameterizations on the production of direct photons and charged hadrons is per- formed by employing a next-to-leading order Monte Carlo event generator… read more here.
Keywords: collisions lhc; photon; parton distribution; hadron ... See more keywords
Form factors of the nucleon by using the t dependence of parton distribution functions
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review C"
DOI: 10.1103/physrevc.107.055204
Abstract: This paper calculates the elastic form factors for nucleons based on generalized parton distributions using an extended new ansatz introduced in http://dx.doi.org/10.1103/PhysRevC.105.025202 (Phys. Rev. C 105, no.2, 025202 (2022)). Different parton distribution functions (PDFs) are… read more here.
Keywords: form factors; factors nucleon; parton; distribution functions ... See more keywords
Double parton distribution of valence quarks in the pion in chiral quark models
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.014019
Abstract: The valence double parton distribution of the pion is analyzed in the framework of chiral quark models, where in the chiral limit factorization between the longitudinal and transverse degrees of freedom occurs. This feature leads,… read more here.
Keywords: double parton; valence; vec; distribution ... See more keywords
Parton distribution functions of heavy mesons on the light front
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.014020
Abstract: The parton distribution functions (PDFs) of heavy mesons are evaluated from their light-front wave functions, which are obtained from a basis light-front quantization in the leading Fock sector representation. We consider the mass eigenstates from… read more here.
Keywords: parton distribution; distribution functions; light front; heavy mesons ... See more keywords
Flavor nonsinglet parton distribution functions from lattice QCD at physical quark masses via the pseudodistribution approach
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.103.034510
Abstract: One of the great challenges of QCD is to determine the partonic structure of the nucleon from first principles. In this work, we provide such a determination of the flavor non-singlet ($u-d$) unpolarized parton distribution… read more here.
Keywords: flavor nonsinglet; approach; parton; distribution ... See more keywords
Transversity parton distribution function of the nucleon using the pseudodistribution approach
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.105.034507
Abstract: (On behalf of the HadStruc Collaboration) Department of Physics, William and Mary, Williamsburg, Virginia, USA. Thomas Jefferson National Accelerator Facility, Newport News, Virginia, USA. Department of Physics, Columbia University, New York City, New York, USA.… read more here.
Keywords: transversity parton; virginia usa; department physics; physics ... See more keywords
Enhanced threshold resummation formalism for lepton pair production and its effects in the determination of parton distribution functions
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.056024
Abstract: We demonstrate that theoretical predictions using current resummation techniques for the lepton pair production (LPP) rapidity and $x_F$ distributions can be inconsistent with data in high rapidity and $x_F$ kinematic regions by observing their effect… read more here.
Keywords: threshold resummation; parton distribution; lepton pair; distribution functions ... See more keywords
Perturbative renormalization of quasi-parton distribution functions
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.054506
Abstract: In this paper we present results for the renormalization of gauge invariant nonlocal fermion operators which contain a Wilson line, to one-loop level in lattice perturbation theory. Our calculations have been performed for Wilson/clover fermions… read more here.
Keywords: renormalization quasi; quasi parton; parton distribution; renormalization ... See more keywords
Parton distribution functions with QED corrections in the valon model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.074001
Abstract: Parton distribution functions (PDFs) with QED corrections extracted from the QED$\otimes$QCD DGLAP evolution equations in the framework of "valon" model. Our results for the PDFs with QED corrections in this phenomenological model are in good… read more here.
Keywords: qed corrections; parton distribution; model; valon model ... See more keywords