Revisiting helicity parton distributions at a future electron-ion collider

Borsa, Ignacio; Lucero, Gonzalo; Sassot, Rodolfo; Aschenauer, Elke C.; Nunes, Ana S.

doi:10.1103/PhysRevD.102.094018

Title: Revisiting helicity parton distributions at a future electron-ion collider

Abstract

We studied the impact of future electron ion collider inclusive and semi-inclusive polarized deep inelastic scattering data will have on the determination of the helicity parton distributions. Supplementing the Monte Carlo sampling variant of the DSSV14 analysis with pseudodata on polarized inclusive and semi-inclusive electron-proton deep inelastic scattering with updated uncertainty estimates and for two different center-of-mass-system energies, √s = 44.7 GeV and √s = 141.4 GeV, respectively, and on inclusive electron-helium collisions at √s = 115.2 GeV, we find a remarkable improvement in the determination of the helicity distributions, especially at low parton momentum fraction x . While inclusive electron-proton data at the lowest energy configuration constrain significantly the gluon polarization down to x ~ 10^–4, the higher energy configuration strengthens the constraint and extends it one decade further. On the other hand, semi-inclusive data achieves the hitherto elusive flavor separation for sea quarks that cannot be obtained from any other inclusive electromagnetic measurement. Collisions with helium complement inclusive proton measurements, pushing the constraints on the combined quark plus antiquark u, d and s polarizations to an unprecedented level.

Authors:

; Lucero, Gonzalo;

;

Publication Date:: 2020-11-23

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1756218

Alternate Identifier(s):: OSTI ID: 1737435

Report Number(s):: BNL-220717-2020-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 094018

Grant/Contract Number:: de-sc0012704; SC0012704

Resource Type:: Published Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Name: Physical Review D Journal Volume: 102 Journal Issue: 9; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Borsa, Ignacio, Lucero, Gonzalo, Sassot, Rodolfo, Aschenauer, Elke C., and Nunes, Ana S. Revisiting helicity parton distributions at a future electron-ion collider.  United States: N. p., 2020. 
Web.  doi:10.1103/PhysRevD.102.094018.

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                    Borsa, Ignacio, Lucero, Gonzalo, Sassot, Rodolfo, Aschenauer, Elke C., & Nunes, Ana S. Revisiting helicity parton distributions at a future electron-ion collider.  United States.  https://doi.org/10.1103/PhysRevD.102.094018

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                    Borsa, Ignacio, Lucero, Gonzalo, Sassot, Rodolfo, Aschenauer, Elke C., and Nunes, Ana S. Mon .  
"Revisiting helicity parton distributions at a future electron-ion collider".  United States.  https://doi.org/10.1103/PhysRevD.102.094018.

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@article{osti_1756218,

  title        = {Revisiting helicity parton distributions at a future electron-ion collider},

  author       = {Borsa, Ignacio and Lucero, Gonzalo and Sassot, Rodolfo and Aschenauer, Elke C. and Nunes, Ana S.},

  abstractNote = {We studied the impact of future electron ion collider inclusive and semi-inclusive polarized deep inelastic scattering data will have on the determination of the helicity parton distributions. Supplementing the Monte Carlo sampling variant of the DSSV14 analysis with pseudodata on polarized inclusive and semi-inclusive electron-proton deep inelastic scattering with updated uncertainty estimates and for two different center-of-mass-system energies, √s = 44.7 GeV and √s = 141.4 GeV, respectively, and on inclusive electron-helium collisions at √s = 115.2 GeV, we find a remarkable improvement in the determination of the helicity distributions, especially at low parton momentum fraction x . While inclusive electron-proton data at the lowest energy configuration constrain significantly the gluon polarization down to x ~ 10–4, the higher energy configuration strengthens the constraint and extends it one decade further. On the other hand, semi-inclusive data achieves the hitherto elusive flavor separation for sea quarks that cannot be obtained from any other inclusive electromagnetic measurement. Collisions with helium complement inclusive proton measurements, pushing the constraints on the combined quark plus antiquark u, d and s polarizations to an unprecedented level.},

  doi          = {10.1103/PhysRevD.102.094018},

  journal      = {Physical Review D},

  number       = 9,

  volume       = 102,

  place        = {United States},

  year         = {2020},

  month        = {11}

}

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Works referenced in this record:

Can the polarization of the strange quarks in the proton be positive?
journal, February 2003

Leader, Elliot; Stamenov, Dimiter B.
Physical Review D, Vol. 67, Issue 3
DOI: 10.1103/PhysRevD.67.037503

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

de Florian, Daniel; Sassot, Rodolfo; Stratmann, Marco
Physical Review D, Vol. 80, Issue 3
DOI: 10.1103/PhysRevD.80.034030

Flavor singlet contribution to the structure functiong 1 at small-x
journal, December 1996

Bartels, J.; Ermolaev, B. I.; Ryskin, M. G.
Zeitschrift für Physik C: Particles and Fields, Vol. 72, Issue 4
DOI: 10.1007/s002880050285

Small- $x$ Asymptotics of the Quark Helicity Distribution
journal, January 2017

Kovchegov, Yuri V.; Pitonyak, Daniel; Sievert, Matthew D.
Physical Review Letters, Vol. 118, Issue 5
DOI: 10.1103/PhysRevLett.118.052001

SU(3) breaking effects in hyperon semi-leptonic decays and the extraction of F and D
journal, January 1996

Ratcliffe, Philip G.
Physics Letters B, Vol. 365, Issue 1-4
DOI: 10.1016/0370-2693(95)01274-5

Semi-inclusive deep-inelastic scattering, parton distributions, and fragmentation functions at a future electron-ion collider
journal, May 2019

Aschenauer, Elke C.; Borsa, Ignacio; Sassot, Rodolfo
Physical Review D, Vol. 99, Issue 9
DOI: 10.1103/PhysRevD.99.094004

Reweighting and unweighting of parton distributions and the LHC W lepton asymmetry data
journal, February 2012

Ball, Richard D.; Bertone, Valerio; Cerutti, Francesco
Nuclear Physics B, Vol. 855, Issue 3
DOI: 10.1016/j.nuclphysb.2011.10.018

Reweighting NNPDFs: The W lepton asymmetry
journal, August 2011

Ball, Richard D.; Bertone, Valerio; Cerutti, Francesco
Nuclear Physics B, Vol. 849, Issue 1
DOI: 10.1016/j.nuclphysb.2011.03.017

Unveiling the proton spin decomposition at a future electron-ion collider
journal, November 2015

Aschenauer, Elke C.; Sassot, Rodolfo; Stratmann, Marco
Physical Review D, Vol. 92, Issue 9
DOI: 10.1103/PhysRevD.92.094030

Hyperon decays, EMC results and the spin structure of the proton
journal, October 1989

Lipkin, Harry J.
Physics Letters B, Vol. 230, Issue 1-2
DOI: 10.1016/0370-2693(89)91667-5

A determination of parton distributions with faithful uncertainty estimation
journal, March 2009

Ball, Richard D.; Del Debbio, Luigi; Forte, Stefano
Nuclear Physics B, Vol. 809, Issue 1-2
DOI: 10.1016/j.nuclphysb.2008.09.037

O ( $α_{s}$ ) spin-dependent weak structure functions
journal, June 1995

de Florian, D.; Sassot, R.
Physical Review D, Vol. 51, Issue 11
DOI: 10.1103/PhysRevD.51.6052

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

Ashman, J.; Badelek, B.; Baum, G.
Nuclear Physics B, Vol. 328, Issue 1
DOI: 10.1016/0550-3213(89)90089-8

Uncertainties of predictions from parton distribution functions. I. The Lagrange multiplier method
journal, December 2001

Stump, D.; Pumplin, J.; Brock, R.
Physical Review D, Vol. 65, Issue 1
DOI: 10.1103/PhysRevD.65.014012

Parton-to-pion fragmentation reloaded
journal, January 2015

de Florian, Daniel; Sassot, R.; Epele, Manuel
Physical Review D, Vol. 91, Issue 1
DOI: 10.1103/PhysRevD.91.014035

Uncertainties of predictions from parton distribution functions. II. The Hessian method
journal, December 2001

Pumplin, J.; Stump, D.; Brock, R.
Physical Review D, Vol. 65, Issue 1
DOI: 10.1103/PhysRevD.65.014013

Erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143]
journal, January 2012

Ball, Richard D.; Bertone, Valerio; Cerutti, Francesco
Nuclear Physics B, Vol. 854, Issue 3
DOI: 10.1016/j.nuclphysb.2011.09.011

Recoil order chiral corrections to baryon octet axial vector currents and large $N_{c}$ QCD
journal, August 2002

Zhu, Shi-Lin; Sacco, G.; Ramsey-Musolf, M. J.
Physical Review D, Vol. 66, Issue 3
DOI: 10.1103/PhysRevD.66.034021

The polarized two-loop massive pure singlet Wilson coefficient for deep-inelastic scattering
journal, November 2019

Blümlein, J.; Raab, C.; Schönwald, K.
Nuclear Physics B, Vol. 948
DOI: 10.1016/j.nuclphysb.2019.114736

Combined QED and QCD radiative effects in deep inelastic lepton-proton scattering: the Monte Carlo generator DJANGO6
journal, July 1994

Charchuła, K.; Schuler, G. A.; Spiesberger, H.
Computer Physics Communications, Vol. 81, Issue 3
DOI: 10.1016/0010-4655(94)90086-8

SU(3) breaking in hyperon beta decays
journal, August 1990

Roos, M.
Physics Letters B, Vol. 246, Issue 1-2
DOI: 10.1016/0370-2693(90)91328-9

PEPSI — a Monte Carlo generator for polarized leptoproduction
journal, September 1992

Mankiewicz, L.; Schäfer, A.; Veltri, M.
Computer Physics Communications, Vol. 71, Issue 3
DOI: 10.1016/0010-4655(92)90016-R

The spin content of the proton in the light-cone quark model without SU(3) flavour symmetry
journal, March 1991

Dziembowski, Z.; Franklin, J.
Journal of Physics G: Nuclear and Particle Physics, Vol. 17, Issue 3
DOI: 10.1088/0954-3899/17/3/004

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

Nocera, Emanuele R.; Ball, Richard D.; Forte, Stefano
Nuclear Physics B, Vol. 887
DOI: 10.1016/j.nuclphysb.2014.08.008

Hector 1.00
journal, April 1996

Arbuzov, A.; Bardin, D.; Blümlein, J.
Computer Physics Communications, Vol. 94, Issue 2-3
DOI: 10.1016/0010-4655(96)00005-7

Next to leading order evolution of SIDIS processes in the forward region
journal, November 2003

Daleo, A.; Sassot, R.
Nuclear Physics B, Vol. 673, Issue 1-2
DOI: 10.1016/j.nuclphysb.2003.09.007

The calculation of the two-loop spin splitting functions P (1) ij ( x )
journal, May 1996

Mertig, R.; van Neerven, W. L.
Zeitschrift f�r Physik C Particles and Fields, Vol. 70, Issue 4
DOI: 10.1007/s002880050138

Helicity parton distributions at a future electron-ion collider: A quantitative appraisal
journal, September 2012

Aschenauer, Elke C.; Stratmann, Marco; Sassot, Rodolfo
Physical Review D, Vol. 86, Issue 5
DOI: 10.1103/PhysRevD.86.054020

The complete $O (α_{s}^{2})$ non-singlet heavy flavor corrections to the structure functions $g_{1, 2}^{e p} (x, Q^{2})$ , $F_{1, 2, L}^{e p} (x, Q^{2})$ , $F_{1, 2, 3}^{ν (\bar{ν})} (x, Q^{2})$ and the associated sum rules
journal, September 2016

Blümlein, Johannes; Falcioni, Giulio; De Freitas, Abilio
Nuclear Physics B, Vol. 910
DOI: 10.1016/j.nuclphysb.2016.06.018

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

de Florian, Daniel; Sassot, Rodolfo; Stratmann, Marco
Physical Review Letters, Vol. 113, Issue 1
DOI: 10.1103/PhysRevLett.113.012001

Bayesian reweighting of nuclear PDFs and constraints from proton-lead collisions at the LHC
journal, November 2013

Armesto, Nestor; Rojo, Juan; Salgado, Carlos A.
Journal of High Energy Physics, Vol. 2013, Issue 11
DOI: 10.1007/JHEP11(2013)015

Monte Carlo sampling variant of the DSSV14 set of helicity parton densities
journal, December 2019

de Florian, Daniel; Lucero, Gonzalo Agustín; Sassot, Rodolfo
Physical Review D, Vol. 100, Issue 11
DOI: 10.1103/PhysRevD.100.114027

Probing the sea quark content of the proton with one-particle-inclusive processes
journal, November 2017

Borsa, Ignacio; Sassot, Rodolfo; Stratmann, Marco
Physical Review D, Vol. 96, Issue 9
DOI: 10.1103/PhysRevD.96.094020

The singlet contribution to the structure function g1(x,Q2) at small x
journal, October 1996

Blümlein, J.; Vogt, A.
Physics Letters B, Vol. 386, Issue 1-4
DOI: 10.1016/0370-2693(96)00958-6

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

Airapetian, A.; Akopov, N.; Akopov, Z.
Physical Review D, Vol. 75, Issue 1
DOI: 10.1103/PhysRevD.75.012007

Global Analysis of Helicity Parton Densities and their Uncertainties
journal, August 2008

de Florian, Daniel; Sassot, Rodolfo; Stratmann, Marco
Physical Review Letters, Vol. 101, Issue 7
DOI: 10.1103/PhysRevLett.101.072001

The spin-dependent two-loop splitting functions
journal, September 1996

Vogelsang, W.
Nuclear Physics B, Vol. 475, Issue 1-2
DOI: 10.1016/0550-3213(96)00306-9

HERACLES: an event generator for ep interactions at HERA energies including radiative processes
journal, February 1992

Kwiatkowski, A.; Spiesberger, H.; Möhring, H. -J.
Computer Physics Communications, Vol. 69, Issue 1
DOI: 10.1016/0010-4655(92)90136-M

Erratum to: “A determination of parton distributions with faithful uncertainty estimation” [Nucl. Phys. B 809 (2009) 1–63]
journal, July 2009

Ball, Richard D.; Del Debbio, Luigi; Forte, Stefano
Nuclear Physics B, Vol. 816, Issue 1-2
DOI: 10.1016/j.nuclphysb.2009.02.027

Small- x asymptotics of the quark helicity distribution: Analytic results
journal, September 2017

Kovchegov, Yuri V.; Pitonyak, Daniel; Sievert, Matthew D.
Physics Letters B, Vol. 772
DOI: 10.1016/j.physletb.2017.06.032

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

The 3-loop non-singlet heavy flavor contributions to the structure function g1(x,Q2) at large momentum transfer
journal, August 2015

Behring, A.; Blümlein, J.; De Freitas, A.
Nuclear Physics B, Vol. 897
DOI: 10.1016/j.nuclphysb.2015.06.007

Helicity at small x: oscillations generated by bringing back the quarks
journal, August 2020

Kovchegov, Yuri V.; Tawabutr, Yossathorn
Journal of High Energy Physics, Vol. 2020, Issue 8
DOI: 10.1007/JHEP08(2020)014

PDF reweighting in the Hessian matrix approach
journal, December 2014

Paukkunen, Hannu; Zurita, Pia
Journal of High Energy Physics, Vol. 2014, Issue 12
DOI: 10.1007/JHEP12(2014)100

The two-mass contribution to the three-loop polarized gluonic operator matrix element $A_{g g, Q}^{(3)}$
journal, June 2020

Ablinger, J.; Blümlein, J.; De Freitas, A.
Nuclear Physics B, Vol. 955
DOI: 10.1016/j.nuclphysb.2020.115059

Neural network determination of parton distributions: the nonsinglet case
journal, March 2007

Collaboration, The NNPDF; Debbio, Luigi Del; Forte, Stefano
Journal of High Energy Physics, Vol. 2007, Issue 03
DOI: 10.1088/1126-6708/2007/03/039

Towards a global analysis of polarized parton distributions
journal, November 2001

Stratmann, Marco; Vogelsang, Werner
Physical Review D, Vol. 64, Issue 11
DOI: 10.1103/PhysRevD.64.114007

Flavor symmetry, EMC results and the spin content of the proton
journal, November 1988

Lipkin, Harry J.
Physics Letters B, Vol. 214, Issue 3
DOI: 10.1016/0370-2693(88)91389-5

Order-αs2 corrections to one-particle inclusive processes in DIS
journal, July 2003

Daleo, A.; Garcı́a Canal, C. A.; Sassot, R.
Nuclear Physics B, Vol. 662, Issue 1-2
DOI: 10.1016/S0550-3213(03)00334-1

An introduction to PYTHIA 8.2
journal, June 2015

Sjöstrand, Torbjörn; Ask, Stefan; Christiansen, Jesper R.
Computer Physics Communications, Vol. 191
DOI: 10.1016/j.cpc.2015.01.024

SU(3) breaking effects in hyperon semi-leptonic decays and the EMC/SLAC proton spin measurements
journal, June 1990

Ratcliffe, P. G.
Physics Letters B, Vol. 242, Issue 2
DOI: 10.1016/0370-2693(90)91469-R

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

Second erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143]
journal, February 2012

Ball, Richard D.; Bertone, Valerio; Cerutti, Francesco
Nuclear Physics B, Vol. 855, Issue 3
DOI: 10.1016/j.nuclphysb.2011.10.024

Spin content of the proton
journal, April 1988

Close, F. E.; Roberts, R. G.
Physical Review Letters, Vol. 60, Issue 15
DOI: 10.1103/PhysRevLett.60.1471

Parton-to-kaon fragmentation revisited
journal, May 2017

de Florian, Daniel; Epele, Manuel; Hernández-Pinto, Roger J.
Physical Review D, Vol. 95, Issue 9
DOI: 10.1103/PhysRevD.95.094019

$O (α_{s}^{2})$ QCD corrections to the electroproduction of hadrons with high transverse momentum
journal, February 2005

Daleo, A.; de Florian, D.; Sassot, R.
Physical Review D, Vol. 71, Issue 3
DOI: 10.1103/PhysRevD.71.034013

Helicity evolution at small x
journal, January 2016

Kovchegov, Yuri V.; Pitonyak, Daniel; Sievert, Matthew D.
Journal of High Energy Physics, Vol. 2016, Issue 1
DOI: 10.1007/JHEP01(2016)072

Rederivation of the spin-dependent next-to-leading order splitting functions
journal, August 1996

Vogelsang, Werner
Physical Review D, Vol. 54, Issue 3
DOI: 10.1103/PhysRevD.54.2023

The polarized three-loop anomalous dimensions from on-shell massive operator matrix elements
journal, November 2019

Behring, A.; Blümlein, J.; De Freitas, A.
Nuclear Physics B, Vol. 948
DOI: 10.1016/j.nuclphysb.2019.114753

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Title: Revisiting helicity parton distributions at a future electron-ion collider

Abstract

Citation Formats

Can the polarization of the strange quarks in the proton be positive? journal, February 2003

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

Flavor singlet contribution to the structure functiong 1 at small-x journal, December 1996

Small- x Asymptotics of the Quark Helicity Distribution journal, January 2017

SU(3) breaking effects in hyperon semi-leptonic decays and the extraction of F and D journal, January 1996

Semi-inclusive deep-inelastic scattering, parton distributions, and fragmentation functions at a future electron-ion collider journal, May 2019

Reweighting and unweighting of parton distributions and the LHC W lepton asymmetry data journal, February 2012

Reweighting NNPDFs: The W lepton asymmetry journal, August 2011

Unveiling the proton spin decomposition at a future electron-ion collider journal, November 2015

Hyperon decays, EMC results and the spin structure of the proton journal, October 1989

A determination of parton distributions with faithful uncertainty estimation journal, March 2009

O ( α s ) spin-dependent weak structure functions journal, June 1995

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

Uncertainties of predictions from parton distribution functions. I. The Lagrange multiplier method journal, December 2001

Parton-to-pion fragmentation reloaded journal, January 2015

Uncertainties of predictions from parton distribution functions. II. The Hessian method journal, December 2001

Erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143] journal, January 2012

Recoil order chiral corrections to baryon octet axial vector currents and large N c QCD journal, August 2002

The polarized two-loop massive pure singlet Wilson coefficient for deep-inelastic scattering journal, November 2019

Combined QED and QCD radiative effects in deep inelastic lepton-proton scattering: the Monte Carlo generator DJANGO6 journal, July 1994

SU(3) breaking in hyperon beta decays journal, August 1990

PEPSI — a Monte Carlo generator for polarized leptoproduction journal, September 1992

The spin content of the proton in the light-cone quark model without SU(3) flavour symmetry journal, March 1991

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

Hector 1.00 journal, April 1996

Next to leading order evolution of SIDIS processes in the forward region journal, November 2003

The calculation of the two-loop spin splitting functions P (1) ij ( x ) journal, May 1996

Helicity parton distributions at a future electron-ion collider: A quantitative appraisal journal, September 2012

The complete O ( α s 2 ) non-singlet heavy flavor corrections to the structure functions g 1 , 2 e p ( x , Q 2 ) , F 1 , 2 , L e p ( x , Q 2 ) , F 1 , 2 , 3 ν ( ν ¯ ) ( x , Q 2 ) and the associated sum rules journal, September 2016

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

Bayesian reweighting of nuclear PDFs and constraints from proton-lead collisions at the LHC journal, November 2013

Monte Carlo sampling variant of the DSSV14 set of helicity parton densities journal, December 2019

Probing the sea quark content of the proton with one-particle-inclusive processes journal, November 2017

The singlet contribution to the structure function g1(x,Q2) at small x journal, October 1996

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

Global Analysis of Helicity Parton Densities and their Uncertainties journal, August 2008

The spin-dependent two-loop splitting functions journal, September 1996

HERACLES: an event generator for ep interactions at HERA energies including radiative processes journal, February 1992

Erratum to: “A determination of parton distributions with faithful uncertainty estimation” [Nucl. Phys. B 809 (2009) 1–63] journal, July 2009

Small- x asymptotics of the quark helicity distribution: Analytic results journal, September 2017

The spin structure of the nucleon journal, April 2013

The 3-loop non-singlet heavy flavor contributions to the structure function g1(x,Q2) at large momentum transfer journal, August 2015

Helicity at small x: oscillations generated by bringing back the quarks journal, August 2020

PDF reweighting in the Hessian matrix approach journal, December 2014

The two-mass contribution to the three-loop polarized gluonic operator matrix element A g g , Q ( 3 ) journal, June 2020

Neural network determination of parton distributions: the nonsinglet case journal, March 2007

Towards a global analysis of polarized parton distributions journal, November 2001

Flavor symmetry, EMC results and the spin content of the proton journal, November 1988

Order-αs2 corrections to one-particle inclusive processes in DIS journal, July 2003

An introduction to PYTHIA 8.2 journal, June 2015

SU(3) breaking effects in hyperon semi-leptonic decays and the EMC/SLAC proton spin measurements journal, June 1990

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

Second erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143] journal, February 2012

Spin content of the proton journal, April 1988

Parton-to-kaon fragmentation revisited journal, May 2017

O ( α s 2 ) QCD corrections to the electroproduction of hadrons with high transverse momentum journal, February 2005

Helicity evolution at small x journal, January 2016

Rederivation of the spin-dependent next-to-leading order splitting functions journal, August 1996

The polarized three-loop anomalous dimensions from on-shell massive operator matrix elements journal, November 2019

Can the polarization of the strange quarks in the proton be positive?
journal, February 2003

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

Flavor singlet contribution to the structure functiong 1 at small-x
journal, December 1996

Small- $x$ Asymptotics of the Quark Helicity Distribution
journal, January 2017

SU(3) breaking effects in hyperon semi-leptonic decays and the extraction of F and D
journal, January 1996

Semi-inclusive deep-inelastic scattering, parton distributions, and fragmentation functions at a future electron-ion collider
journal, May 2019

Reweighting and unweighting of parton distributions and the LHC W lepton asymmetry data
journal, February 2012

Reweighting NNPDFs: The W lepton asymmetry
journal, August 2011

Unveiling the proton spin decomposition at a future electron-ion collider
journal, November 2015

Hyperon decays, EMC results and the spin structure of the proton
journal, October 1989

A determination of parton distributions with faithful uncertainty estimation
journal, March 2009

O ( $α_{s}$ ) spin-dependent weak structure functions
journal, June 1995

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

Uncertainties of predictions from parton distribution functions. I. The Lagrange multiplier method
journal, December 2001

Parton-to-pion fragmentation reloaded
journal, January 2015

Uncertainties of predictions from parton distribution functions. II. The Hessian method
journal, December 2001

Erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143]
journal, January 2012

Recoil order chiral corrections to baryon octet axial vector currents and large $N_{c}$ QCD
journal, August 2002

The polarized two-loop massive pure singlet Wilson coefficient for deep-inelastic scattering
journal, November 2019

Combined QED and QCD radiative effects in deep inelastic lepton-proton scattering: the Monte Carlo generator DJANGO6
journal, July 1994

SU(3) breaking in hyperon beta decays
journal, August 1990

PEPSI — a Monte Carlo generator for polarized leptoproduction
journal, September 1992

The spin content of the proton in the light-cone quark model without SU(3) flavour symmetry
journal, March 1991

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

Hector 1.00
journal, April 1996

Next to leading order evolution of SIDIS processes in the forward region
journal, November 2003

The calculation of the two-loop spin splitting functions P (1) ij ( x )
journal, May 1996

Helicity parton distributions at a future electron-ion collider: A quantitative appraisal
journal, September 2012

The complete $O (α_{s}^{2})$ non-singlet heavy flavor corrections to the structure functions $g_{1, 2}^{e p} (x, Q^{2})$ , $F_{1, 2, L}^{e p} (x, Q^{2})$ , $F_{1, 2, 3}^{ν (\bar{ν})} (x, Q^{2})$ and the associated sum rules
journal, September 2016

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

Bayesian reweighting of nuclear PDFs and constraints from proton-lead collisions at the LHC
journal, November 2013

Monte Carlo sampling variant of the DSSV14 set of helicity parton densities
journal, December 2019

Probing the sea quark content of the proton with one-particle-inclusive processes
journal, November 2017

The singlet contribution to the structure function g1(x,Q2) at small x
journal, October 1996

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

Global Analysis of Helicity Parton Densities and their Uncertainties
journal, August 2008

The spin-dependent two-loop splitting functions
journal, September 1996

HERACLES: an event generator for ep interactions at HERA energies including radiative processes
journal, February 1992

Erratum to: “A determination of parton distributions with faithful uncertainty estimation” [Nucl. Phys. B 809 (2009) 1–63]
journal, July 2009

Small- x asymptotics of the quark helicity distribution: Analytic results
journal, September 2017

The spin structure of the nucleon
journal, April 2013

The 3-loop non-singlet heavy flavor contributions to the structure function g1(x,Q2) at large momentum transfer
journal, August 2015

Helicity at small x: oscillations generated by bringing back the quarks
journal, August 2020

PDF reweighting in the Hessian matrix approach
journal, December 2014

The two-mass contribution to the three-loop polarized gluonic operator matrix element $A_{g g, Q}^{(3)}$
journal, June 2020

Neural network determination of parton distributions: the nonsinglet case
journal, March 2007

Towards a global analysis of polarized parton distributions
journal, November 2001

Flavor symmetry, EMC results and the spin content of the proton
journal, November 1988

Order-αs2 corrections to one-particle inclusive processes in DIS
journal, July 2003

An introduction to PYTHIA 8.2
journal, June 2015

SU(3) breaking effects in hyperon semi-leptonic decays and the EMC/SLAC proton spin measurements
journal, June 1990

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

Second erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143]
journal, February 2012

Spin content of the proton
journal, April 1988

Parton-to-kaon fragmentation revisited
journal, May 2017

$O (α_{s}^{2})$ QCD corrections to the electroproduction of hadrons with high transverse momentum
journal, February 2005

Helicity evolution at small x
journal, January 2016

Rederivation of the spin-dependent next-to-leading order splitting functions
journal, August 1996

The polarized three-loop anomalous dimensions from on-shell massive operator matrix elements
journal, November 2019