Strange quark helicity in the proton from chiral effective theory

Wang, X.  G.; Ji, Chueng-Ryong; Melnitchouk, W.; Salamu, Y.; Thomas, A.  W.; Wang, P.

doi:10.1103/physrevd.102.116020

Title: Strange quark helicity in the proton from chiral effective theory

Abstract

We compute the helicity-dependent strange quark distribution in the proton in the framework of chiral effective theory. Starting from the most general chiral SU(3) Lagrangian that respects Lorentz and gauge invariance, we derive the complete set of hadronic splitting functions at the one meson loop level, including the octet and decuplet rainbow, tadpole, Kroll-Ruderman and octet-decuplet transition configurations. By matching hadronic and quark level operators, we obtain generalized convolution formulas for the quark distributions in the proton in terms of hadronic splitting functions and quark distributions in the hadronic configurations, and from these derive model-independent relations for the leading nonanalytic behavior of their moments. Within the limits of parameters of the Pauli-Villars regulators derived from inclusive hyperon production, we find that the polarized strange quark distribution is rather small and mostly negative.

Authors:

;

Publication Date:: Mon Dec 28 00:00:00 EST 2020

Research Org.:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); North Carolina State University, Raleigh, NC (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP); Australian Research Council (ARC); National Natural Science Foundation of China (NSFC)

OSTI Identifier:: 1749967

Alternate Identifier(s):: OSTI ID: 1755322; OSTI ID: 1774066

Report Number(s):: JLAB-THY-20-3238; DOE/OR/23177-5041; arXiv:2008.11902
Journal ID: ISSN 2470-0010; 116020

Grant/Contract Number:: FG02-03ER41260; AC05-06OR23177; DP151103101; CE110001104; DP180100497; 11975241

Resource Type:: Published Article

Journal Name:: Physical Review. D.

Additional Journal Information:: Journal Name: Physical Review. D. Journal Volume: 102 Journal Issue: 11; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; chiral perturbation theory; particle interactions; quantum chromodynamics; quark model

Citation Formats


                    Wang, X.  G., Ji, Chueng-Ryong, Melnitchouk, W., Salamu, Y., Thomas, A.  W., and Wang, P. Strange quark helicity in the proton from chiral effective theory.  United States: N. p., 2020. 
Web.  doi:10.1103/physrevd.102.116020.

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                    Wang, X.  G., Ji, Chueng-Ryong, Melnitchouk, W., Salamu, Y., Thomas, A.  W., & Wang, P. Strange quark helicity in the proton from chiral effective theory.  United States.  https://doi.org/10.1103/physrevd.102.116020

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                    Wang, X.  G., Ji, Chueng-Ryong, Melnitchouk, W., Salamu, Y., Thomas, A.  W., and Wang, P. Mon .  
"Strange quark helicity in the proton from chiral effective theory".  United States.  https://doi.org/10.1103/physrevd.102.116020.

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@article{osti_1749967,

  title        = {Strange quark helicity in the proton from chiral effective theory},

  author       = {Wang, X.  G. and Ji, Chueng-Ryong and Melnitchouk, W. and Salamu, Y. and Thomas, A.  W. and Wang, P.},

  abstractNote = {We compute the helicity-dependent strange quark distribution in the proton in the framework of chiral effective theory. Starting from the most general chiral SU(3) Lagrangian that respects Lorentz and gauge invariance, we derive the complete set of hadronic splitting functions at the one meson loop level, including the octet and decuplet rainbow, tadpole, Kroll-Ruderman and octet-decuplet transition configurations. By matching hadronic and quark level operators, we obtain generalized convolution formulas for the quark distributions in the proton in terms of hadronic splitting functions and quark distributions in the hadronic configurations, and from these derive model-independent relations for the leading nonanalytic behavior of their moments. Within the limits of parameters of the Pauli-Villars regulators derived from inclusive hyperon production, we find that the polarized strange quark distribution is rather small and mostly negative.},

  doi          = {10.1103/physrevd.102.116020},

  journal      = {Physical Review. D.},

  number       = 11,

  volume       = 102,

  place        = {United States},

  year         = {Mon Dec 28 00:00:00 EST 2020},

  month        = {Mon Dec 28 00:00:00 EST 2020}

}

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Melnitchouk, W.; Malheiro, M.
Physical Review C, Vol. 55, Issue 1
DOI: 10.1103/PhysRevC.55.431

A Primer for Chiral Perturbation Theory
book, January 2012

Scherer, Stefan; Schindler, Matthias R.
Lecture Notes in Physics
DOI: 10.1007/978-3-642-19254-8

Measurements of the proton and deuteron spin structure functions $g_{1}$ and $g_{2}$
journal, October 1998

Abe, K.; Akagi, T.; Anthony, P. L.
Physical Review D, Vol. 58, Issue 11
DOI: 10.1103/PhysRevD.58.112003

Constraints on the $s - \bar{s}$ asymmetry of the proton in chiral effective theory
journal, November 2016

Wang, X. G.; Ji, Chueng-Ryong; Melnitchouk, W.
Physics Letters B, Vol. 762
DOI: 10.1016/j.physletb.2016.09.014

Pion and sigma meson properties in a relativistic quark model
journal, July 2003

Faessler, Amand; Gutsche, Th.; Ivanov, M. A.
Physical Review D, Vol. 68, Issue 1
DOI: 10.1103/PhysRevD.68.014011

The spin structure of the nucleon
journal, April 2013

Aidala, Christine A.; Bass, Steven D.; Hasch, Delia
Reviews of Modern Physics, Vol. 85, Issue 2
DOI: 10.1103/RevModPhys.85.655

Precision measurement of the proton and deuteron spin structure functions g2 and asymmetries A2
journal, January 2003

Anthony, P. L.; Arnold, R. G.; Averett, T.
Physics Letters B, Vol. 553, Issue 1-2
DOI: 10.1016/S0370-2693(02)03015-0

Precision measurements of $A_{1}^{n}$ in the deep inelastic regime
journal, May 2015

Parno, D. S.; Flay, D.; Posik, M.
Physics Letters B, Vol. 744
DOI: 10.1016/j.physletb.2015.03.067

Systematic uncertainties in parton distribution functions from lattice QCD simulations at the physical point
journal, June 2019

Alexandrou, Constantia; Cichy, Krzysztof; Constantinou, Martha
Physical Review D, Vol. 99, Issue 11
DOI: 10.1103/PhysRevD.99.114504

Quenched chiral perturbation theory for baryons
journal, October 1996

Labrenz, James N.; Sharpe, Stephen R.
Physical Review D, Vol. 54, Issue 7
DOI: 10.1103/PhysRevD.54.4595

Measurement of the deuteron spin structure function g1d(x) for 1 (GeV/c)2<Q2<40 (GeV/c)2
journal, September 1999

Anthony, P. L.; Arnold, R. G.; Averett, T.
Physics Letters B, Vol. 463, Issue 2-4
DOI: 10.1016/S0370-2693(99)00940-5

Spin asymmetries $A_{1}$ and structure functions $g_{1}$ of the proton and the deuteron from polarized high energy muon scattering
journal, October 1998

Adeva, B.; Akdogan, T.; Arik, E.
Physical Review D, Vol. 58, Issue 11
DOI: 10.1103/PhysRevD.58.112001

First Monte Carlo analysis of fragmentation functions from single-inclusive $e^{+} e^{-}$ annihilation
journal, December 2016

Sato, Nobuo; Ethier, J. J.; Melnitchouk, W.
Physical Review D, Vol. 94, Issue 11
DOI: 10.1103/PhysRevD.94.114004

Quark contribution to the proton spin from $2 + 1 + 1$ -flavor lattice QCD
journal, November 2018

Lin, Huey-Wen; Gupta, Rajan; Yoon, Boram
Physical Review D, Vol. 98, Issue 9
DOI: 10.1103/PhysRevD.98.094512

semi-leptonic beta-decay form factors and magnetic moments of octet baryons: Recoil effects and center-of-mass corrections in the cloudy bag model including gluonic effects
journal, August 1989

Tetsuya, Yamaguchi; Kazuo, Tsushima; Kohyama, Y.
Nuclear Physics A, Vol. 500, Issue 3
DOI: 10.1016/0375-9474(89)90222-4

Perturbative Generation of a Strange-Quark Asymmetry in the Nucleon
journal, October 2004

Catani, Stefano; de Florian, Daniel; Rodrigo, Germán
Physical Review Letters, Vol. 93, Issue 15
DOI: 10.1103/PhysRevLett.93.152003

Electron-Ion Collider: The next QCD frontier: Understanding the glue that binds us all
journal, September 2016

Accardi, A.; Albacete, J. L.; Anselmino, M.
The European Physical Journal A, Vol. 52, Issue 9
DOI: 10.1140/epja/i2016-16268-9

Parton distributions: a new global analysis
journal, July 1998

Martin, A. D.; Roberts, R. G.; Stirling, W. J.
The European Physical Journal C, Vol. 4, Issue 3
DOI: 10.1007/s100529800904

Strange and charm quark spins from the anomalous Ward identity
journal, June 2017

Gong, Ming; Yang, Yi-Bo; Liang, Jian
Physical Review D, Vol. 95, Issue 11
DOI: 10.1103/PhysRevD.95.114509

A possible resolution of the proton spin problem
journal, May 2008

Myhrer, F.; Thomas, A. W.
Physics Letters B, Vol. 663, Issue 4
DOI: 10.1016/j.physletb.2008.04.034

Including the $Δ (1232)$ resonance in baryon chiral perturbation theory
journal, November 2005

Hacker, C.; Wies, N.; Gegelia, J.
Physical Review C, Vol. 72, Issue 5
DOI: 10.1103/PhysRevC.72.055203

Measurement of the x- and <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:math>-dependence of the asymmetry <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msub><mml:mi>A</mml:mi><mml:mn>1</mml:mn></mml:msub></mml:math> on the nucleon
journal, September 2006

Dharmawardane, K. V.; Kuhn, S. E.; Bosted, P.
Physics Letters B, Vol. 641, Issue 1
DOI: 10.1016/j.physletb.2006.08.011

Measurement of the neutron spin structure function gn1 with a polarized 3He internal target
journal, July 1997

Ackerstaff, K.; Airapetian, A.; Akushevich, I.
Physics Letters B, Vol. 404, Issue 3-4
DOI: 10.1016/S0370-2693(97)00611-4

Precision measurements of $g_{1}$ of the proton and of the deuteron with 6 GeV electrons
journal, August 2014

Prok, Y.; Bosted, P.; Kvaltine, N.
Physical Review C, Vol. 90, Issue 2
DOI: 10.1103/PhysRevC.90.025212

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Similar Records

Title: Strange quark helicity in the proton from chiral effective theory

Abstract

Citation Formats

Measurement of the virtual-photon asymmetry A 2 and the spin-structure function g 2 of the proton journal, March 2012

Deep inelastic scattering of polarized electrons by polarized He 3 and the study of the neutron spin structure journal, December 1996

Dynamical Symmetry Breaking in the Sea of the Nucleon journal, October 2000

Strange quark contributions to nucleon mass and spin from lattice QCD journal, December 2012

Strange asymmetries in the nucleon sea journal, April 1999

Flavour and spin of the proton and the meson cloud journal, January 1996

Extraction of spin-dependent parton densities and their uncertainties journal, August 2009

Chiral extrapolation of hadronic observables journal, May 2003

Strange quark suppression from a simultaneous Monte Carlo analysis of parton distributions and fragmentation functions journal, April 2020

Moments of the neutron g 2 structure function at intermediate Q 2 journal, July 2015

Spin dependent structure functions in the cloudy bag model journal, December 1988

Calculation of the nucleon g 1 structure function using the meson cloud model in the light-cone frame journal, May 2001

First Simultaneous Extraction of Spin-Dependent Parton Distributions and Fragmentation Functions from a Global QCD Analysis journal, September 2017

Parton distributions and lattice QCD calculations: A community white paper journal, May 2018

Constraints on large- x parton distributions from new weak boson production and deep-inelastic scattering data journal, June 2016

SU(3) chiral perturbation theory expansion of moments of quark distributions journal, June 2013

Revealing Color Forces with Transverse Polarized Electron Scattering journal, January 2019

Strange-quark asymmetry in the proton in chiral effective theory journal, November 2016

Baryon chiral perturbation theory using a heavy fermion lagrangian journal, February 1991

Interplay of Spin and Orbital Angular Momentum in the Proton journal, September 2008

Nucleon Spin and Momentum Decomposition Using Lattice QCD Simulations journal, October 2017

Nonperturbative structure of the polarized nucleon sea journal, October 2003

Parton distribution functions from Ioffe time pseudo-distributions journal, December 2019

SU(3) baryon chiral perturbation theory and long distance regularization journal, January 1999

Gauging nonlocal Lagrangians journal, August 1991

Inclusive production of Σ±(1385) in pp interactions at 12 and 24 GeV/c journal, October 1978

Precision Measurement of the Neutron Spin Asymmetry A 1 n and Spin-Flavor Decomposition in the Valence Quark Region journal, January 2004

An investigation of the spin structure of the proton in deep inelastic scattering of polarised muons on polarised protons journal, December 1989

Measurement of the proton and deuteron spin structure functions g2 and asymmetry A2 journal, July 1999

d ¯ − u ¯ Asymmetry in the Proton in Chiral Effective Theory journal, March 2015

Constructing Parton Convolution in Effective Field Theory journal, September 2001

Chiral corrections to matrix elements of twist-2 operators journal, January 2002

Parton distributions from nonlocal chiral SU(3) effective theory: Splitting functions journal, January 2019

Parton distributions from high-precision collider data: NNPDF Collaboration journal, October 2017

Chiral perturbation theory to one loop journal, November 1984

A Mathematica interface to NNPDFs journal, January 2013

Determination of polarized parton densities from a QCD analysis of inclusive and semi-inclusive deep inelastic scattering data journal, December 2010

New analysis concerning the strange quark polarization puzzle journal, March 2015

A first unbiased global determination of polarized PDFs and their uncertainties journal, October 2014

Iterative Monte Carlo analysis of spin-dependent parton distributions journal, April 2016

QCD analysis of polarized deep inelastic scattering data journal, December 2010

Nucleon spin structure functions at NNLO in the presence of target mass corrections and higher twist effects journal, April 2017

Role of nucleon strangeness in supernova explosions journal, May 2016

Measurement of parity-violating spin asymmetries in W ± production at midrapidity in longitudinally polarized p + p collisions journal, March 2016

Measurement of Longitudinal Spin Asymmetries for Weak Boson Production in Polarized Proton-Proton Collisions at RHIC journal, August 2014

A measurement of the spin asymmetry and determination of the structure function g1 in deep inelastic muon-proton scattering journal, May 1988

Chiral perturbation theory and baryon properties journal, January 2008

Longitudinal double-spin asymmetry for inclusive jet and dijet production in p p collisions at s = 510 GeV journal, September 2019

Baryon masses from lattice QCD: Beyond the perturbative chiral regime journal, February 2000

Measurements of the Q2-dependence of the proton and neutron spin structure functions g1p and g1n journal, November 2000

Spin asymmetries A 1 of the proton and the deuteron in the low x and low Q 2 region from polarized high energy muon scattering journal, September 1999

Determination of the proton spin structure functions for 0.05 < Q 2 < 5 GeV 2 using CLAS journal, December 2017

Determination of gluon polarization from deep inelastic scattering and collider data journal, May 2009

Evidence for Polarization of Gluons in the Proton journal, July 2014

Chiral Extrapolation of Lattice Moments of Proton Quark Distributions journal, October 2001

Precision Measurement of the Neutron Twist-3 Matrix Element d 2 n : Probing Color Forces journal, July 2014

Spin budget of the proton at NNLO and beyond journal, March 2019

Precise determination of the deuteron spin structure at low to moderate Q 2 with CLAS and extraction of the neutron contribution journal, November 2015

Possible resolution of the strange quark polarization puzzle? journal, July 2011

Erratum: Constructing Parton Convolution in Effective Field Theory [Phys. Rev. Lett. 87, 152002 (2001)] journal, May 2002

Precise determination of the spin structure function g 1 of the proton, deuteron, and neutron journal, January 2007

Precision Determination of the Neutron Spin Structure Function g 1 n journal, July 1997

Precision measurement of the neutron spin asymmetries and spin-dependent structure functions in the valence quark region journal, December 2004

Strangeness in the nucleon on the light cone journal, January 1997

A Primer for Chiral Perturbation Theory book, January 2012

Measurements of the proton and deuteron spin structure functions g 1 and g 2 journal, October 1998

Constraints on the s − s ¯ asymmetry of the proton in chiral effective theory journal, November 2016

Pion and sigma meson properties in a relativistic quark model journal, July 2003

The spin structure of the nucleon journal, April 2013

Precision measurement of the proton and deuteron spin structure functions g2 and asymmetries A2 journal, January 2003

Precision measurements of A 1 n in the deep inelastic regime journal, May 2015

Systematic uncertainties in parton distribution functions from lattice QCD simulations at the physical point journal, June 2019

Quenched chiral perturbation theory for baryons journal, October 1996

Measurement of the deuteron spin structure function g1d(x) for 1 (GeV/c)2<Q2<40 (GeV/c)2 journal, September 1999

Spin asymmetries A 1 and structure functions g 1 of the proton and the deuteron from polarized high energy muon scattering journal, October 1998

First Monte Carlo analysis of fragmentation functions from single-inclusive e + e − annihilation journal, December 2016

Quark contribution to the proton spin from 2 + 1 + 1 -flavor lattice QCD journal, November 2018

Measurement of the virtual-photon asymmetry A 2 and the spin-structure function g 2 of the proton
journal, March 2012

Deep inelastic scattering of polarized electrons by polarized ${}^{3}{He}$ and the study of the neutron spin structure
journal, December 1996

Dynamical Symmetry Breaking in the Sea of the Nucleon
journal, October 2000

Strange quark contributions to nucleon mass and spin from lattice QCD
journal, December 2012

Strange asymmetries in the nucleon sea
journal, April 1999

Flavour and spin of the proton and the meson cloud
journal, January 1996

Extraction of spin-dependent parton densities and their uncertainties
journal, August 2009

Chiral extrapolation of hadronic observables
journal, May 2003

Strange quark suppression from a simultaneous Monte Carlo analysis of parton distributions and fragmentation functions
journal, April 2020

Moments of the neutron $g_{2}$ structure function at intermediate $Q^{2}$
journal, July 2015

Spin dependent structure functions in the cloudy bag model
journal, December 1988

Calculation of the nucleon $g_{1}$ structure function using the meson cloud model in the light-cone frame
journal, May 2001

First Simultaneous Extraction of Spin-Dependent Parton Distributions and Fragmentation Functions from a Global QCD Analysis
journal, September 2017

Parton distributions and lattice QCD calculations: A community white paper
journal, May 2018

Constraints on large- $x$ parton distributions from new weak boson production and deep-inelastic scattering data
journal, June 2016

SU(3) chiral perturbation theory expansion of moments of quark distributions
journal, June 2013

Revealing Color Forces with Transverse Polarized Electron Scattering
journal, January 2019

Strange-quark asymmetry in the proton in chiral effective theory
journal, November 2016

Baryon chiral perturbation theory using a heavy fermion lagrangian
journal, February 1991

Interplay of Spin and Orbital Angular Momentum in the Proton
journal, September 2008

Nucleon Spin and Momentum Decomposition Using Lattice QCD Simulations
journal, October 2017

Nonperturbative structure of the polarized nucleon sea
journal, October 2003

Parton distribution functions from Ioffe time pseudo-distributions
journal, December 2019

SU(3) baryon chiral perturbation theory and long distance regularization
journal, January 1999

Gauging nonlocal Lagrangians
journal, August 1991

Inclusive production of Σ±(1385) in pp interactions at 12 and 24 GeV/c
journal, October 1978

Precision Measurement of the Neutron Spin Asymmetry $A_{1}^{n}$ and Spin-Flavor Decomposition in the Valence Quark Region
journal, January 2004

An investigation of the spin structure of the proton in deep inelastic scattering of polarised muons on polarised protons
journal, December 1989

Measurement of the proton and deuteron spin structure functions g2 and asymmetry A2
journal, July 1999

$\bar{d} - \bar{u}$ Asymmetry in the Proton in Chiral Effective Theory
journal, March 2015

Constructing Parton Convolution in Effective Field Theory
journal, September 2001

Chiral corrections to matrix elements of twist-2 operators
journal, January 2002

Parton distributions from nonlocal chiral SU(3) effective theory: Splitting functions
journal, January 2019

Parton distributions from high-precision collider data: NNPDF Collaboration
journal, October 2017

Chiral perturbation theory to one loop
journal, November 1984

A Mathematica interface to NNPDFs
journal, January 2013

Determination of polarized parton densities from a QCD analysis of inclusive and semi-inclusive deep inelastic scattering data
journal, December 2010

New analysis concerning the strange quark polarization puzzle
journal, March 2015

A first unbiased global determination of polarized PDFs and their uncertainties
journal, October 2014

Iterative Monte Carlo analysis of spin-dependent parton distributions
journal, April 2016

QCD analysis of polarized deep inelastic scattering data
journal, December 2010

Nucleon spin structure functions at NNLO in the presence of target mass corrections and higher twist effects
journal, April 2017

Role of nucleon strangeness in supernova explosions
journal, May 2016

Measurement of parity-violating spin asymmetries in $W^{\pm}$ production at midrapidity in longitudinally polarized $p + p$ collisions
journal, March 2016

Measurement of Longitudinal Spin Asymmetries for Weak Boson Production in Polarized Proton-Proton Collisions at RHIC
journal, August 2014

A measurement of the spin asymmetry and determination of the structure function g1 in deep inelastic muon-proton scattering
journal, May 1988

Chiral perturbation theory and baryon properties
journal, January 2008

Longitudinal double-spin asymmetry for inclusive jet and dijet production in $p p$ collisions at $\sqrt{s} = 510 GeV$
journal, September 2019

Baryon masses from lattice QCD: Beyond the perturbative chiral regime
journal, February 2000

Measurements of the Q2-dependence of the proton and neutron spin structure functions g1p and g1n
journal, November 2000

Spin asymmetries $A_{1}$ of the proton and the deuteron in the low x and low $Q^{2}$ region from polarized high energy muon scattering
journal, September 1999

Determination of the proton spin structure functions for $0.05 < Q^{2} < 5 {GeV}^{2}$ using CLAS
journal, December 2017

Determination of gluon polarization from deep inelastic scattering and collider data
journal, May 2009

Evidence for Polarization of Gluons in the Proton
journal, July 2014

Chiral Extrapolation of Lattice Moments of Proton Quark Distributions
journal, October 2001

Precision Measurement of the Neutron Twist-3 Matrix Element $d_{2}^{n}$ : Probing Color Forces
journal, July 2014

Spin budget of the proton at NNLO and beyond
journal, March 2019

Precise determination of the deuteron spin structure at low to moderate $Q^{2}$ with CLAS and extraction of the neutron contribution
journal, November 2015

Possible resolution of the strange quark polarization puzzle?
journal, July 2011

Erratum: Constructing Parton Convolution in Effective Field Theory [Phys. Rev. Lett. 87, 152002 (2001)]
journal, May 2002

Precise determination of the spin structure function $g_{1}$ of the proton, deuteron, and neutron
journal, January 2007

Precision Determination of the Neutron Spin Structure Function $g_{1}^{n}$
journal, July 1997

Precision measurement of the neutron spin asymmetries and spin-dependent structure functions in the valence quark region
journal, December 2004

Strangeness in the nucleon on the light cone
journal, January 1997

A Primer for Chiral Perturbation Theory
book, January 2012

Measurements of the proton and deuteron spin structure functions $g_{1}$ and $g_{2}$
journal, October 1998

Constraints on the $s - \bar{s}$ asymmetry of the proton in chiral effective theory
journal, November 2016

Pion and sigma meson properties in a relativistic quark model
journal, July 2003

The spin structure of the nucleon
journal, April 2013

Precision measurement of the proton and deuteron spin structure functions g2 and asymmetries A2
journal, January 2003

Precision measurements of $A_{1}^{n}$ in the deep inelastic regime
journal, May 2015

Systematic uncertainties in parton distribution functions from lattice QCD simulations at the physical point
journal, June 2019

Quenched chiral perturbation theory for baryons
journal, October 1996

Measurement of the deuteron spin structure function g1d(x) for 1 (GeV/c)2<Q2<40 (GeV/c)2
journal, September 1999

Spin asymmetries $A_{1}$ and structure functions $g_{1}$ of the proton and the deuteron from polarized high energy muon scattering
journal, October 1998

First Monte Carlo analysis of fragmentation functions from single-inclusive $e^{+} e^{-}$ annihilation
journal, December 2016

Quark contribution to the proton spin from $2 + 1 + 1$ -flavor lattice QCD
journal, November 2018

semi-leptonic beta-decay form factors and magnetic moments of octet baryons: Recoil effects and center-of-mass corrections in the cloudy bag model including gluonic effects
journal, August 1989

Perturbative Generation of a Strange-Quark Asymmetry in the Nucleon
journal, October 2004

Electron-Ion Collider: The next QCD frontier: Understanding the glue that binds us all
journal, September 2016