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Title: Pion and kaon valence quark distribution functions from Dyson-Schwinger equations

Journal Article · · Physical Review D
 [1];  [2];  [3]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. National Inst. of Nuclear Physics (INFN), Rome (Italy)
  3. Nanjing Univ., Jiangsu (China); Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing (China)

Using realistic quark propagators and meson Bethe-Salpeter amplitudes based on the Dyson-Schwinger equations, we calculate the pion and kaon's valence parton distribution functions (PDF) through the modified impulse approximation. The PDFs we obtained at hadronic scale have the purely valence characteristic and exhibit both dynamical chiral symmetry breaking and SU(3) flavor symmetry breaking effects. A new calculation technique is introduced to determine the valence PDFs with precision. Through next-to-leading order (NLO) evolution, our result is compared with pion and kaon valence PDF data at experimental scale. Good agreement is found in the case of pion, while deviation emerges for kaon. We point out this situation can potentially be resolved by incorporating gluon contributions into the mesons if the pion hosts more gluons than kaon nonperturbatively.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-06CH11357; 2016-098-N0; 2017-058-N0
OSTI ID:
1477738
Alternate ID(s):
OSTI ID: 1473724
Journal Information:
Physical Review D, Vol. 98, Issue 5; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (66)

Leading neutron production in e+p collisions at HERA journal August 2002
Lattice calculation of parton distributions journal July 2015
Exclusive processes in perturbative quantum chromodynamics journal November 1980
Conformal invariance and pion wave functions of nonleading twist journal June 1990
Structure functions of pseudoscalar mesons in the SU(3) NJL model journal March 1995
A limit on the pionic component of the nucleon through SU(3) flavour breaking in the sea journal June 1983
Off-shell persistence of composite pions and kaons journal January 2018
Pion parton distribution function in the valence region journal December 2005
Factorization of large-x quark distributions in a hadron journal March 2005
Basic features of the pion valence-quark distribution function journal October 2014
Pionic parton distributions revisited journal September 1999
Lattice QCD exploration of parton pseudo-distribution functions journal November 2017
Chiral constituent quarks and their role in quark distribution functions of nucleon and pion journal May 1998
Tracing masses of ground-state light-quark mesons journal May 2012
Sketching the Bethe-Salpeter Kernel journal August 2009
Pion light-cone wave function and pion distribution amplitude in the Nambu–Jona-Lasinio model journal November 2002
Parton distributions for the LHC journal July 2009
Measurement of the structure function ratio using the Drell-Yan process journal June 1980
Pion Distribution Amplitude from Lattice QCD journal August 2013
Parton distribution functions in the pion from lattice QCD journal August 2003
Parton distribution amplitudes of light vector mesons journal July 2014
Pion and kaon valence-quark parton distribution functions journal June 2011
A Nakanishi-based model illustrating the covariant extension of the pion GPD overlap representation and its ambiguities journal May 2018
Parton distributions for the pion extracted from Drell-Yan and prompt photon experiments journal April 1992
Experimental study of muon pairs produced by 252-GeV pions on tungsten journal January 1989
From Bethe–Salpeter Wave functions to Generalised Parton Distributions journal June 2016
Valence-quark distribution functions in the kaon and pion journal April 2016
Imaging Dynamical Chiral-Symmetry Breaking: Pion Wave Function on the Light Front journal March 2013
Pion mass and decay constant journal February 1998
Measurement of leading proton and neutron production in deep-inelastic scattering at HERA journal January 1999
Valence-quark distributions in the pion journal January 2001
QCDNUM: Fast QCD evolution and convolution journal February 2011
Parton Physics on a Euclidean Lattice journal June 2013
Pion and kaon valence-quark parton quasidistributions journal May 2018
Meson cloud effects on the pion quark distribution function in the chiral constituent quark model journal December 2016
Flavor dependence of the pion and kaon form factors and parton distribution functions journal September 2016
NJL model on the light cone and pion structure function journal May 1999
Scale dependence of hadronic wave functions and parton densities journal October 2002
Parton distribution amplitudes: Revealing correlations within the proton and Roper journal August 2018
Nucleon helicity and transversity parton distributions from lattice QCD journal October 2016
Light-Cone Parton Distribution Functions from Lattice QCD journal September 2018
Flavour symmetry breaking in the kaon parton distribution amplitude journal November 2014
Pion distribution amplitude from lattice QCD journal May 2017
Experimental determination of the π meson structure functions by the Drell-Yan mechanism journal December 1983
Soft-Gluon Resummation and the Valence Parton Distribution Function of the Pion journal December 2010
Nucleon helicity and transversity parton distributions from lattice QCD text January 2016
Measurement of leading proton and neutron production in deep-inelastic scattering at HERA journal January 1999
Scale Dependence of Hadronic wave Functions and Parton Densities conference November 2011
Parton distributions for the LHC text January 2007
Light-Cone Parton Distribution Functions from Lattice QCD text January 2018
Pion distribution amplitude from lattice QCD text January 2017
Parton distributions for the LHC text January 2009
Pion and kaon valence-quark parton distribution functions text January 2011
Imaging dynamical chiral symmetry breaking: pion wave function on the light front text January 2013
Parton Physics on Euclidean Lattice text January 2013
Pion distribution amplitude from lattice-QCD text January 2013
Parton distribution amplitudes of light vector mesons text January 2014
Basic features of the pion valence-quark distribution function text January 2014
Nucleon Helicity and Transversity Parton Distributions from Lattice QCD text January 2016
Meson cloud effects on the pion quark distribution function in the chiral constituent quark model text January 2016
Pion Distribution Amplitude from Lattice QCD text January 2017
Parton distribution functions in the pion from lattice QCD text January 2003
Pion light-cone wave function and pion distribution amplitude in the Nambu-Jona-Lasinio model text January 2002
Factorization of Large-x Quark Distributions in a Hadron text January 2004
Chiral Constituent quarks and their role in quark distribution functions of nucleon and pion text January 1997
NJL model on the light cone and pion structure function text January 1999

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