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

Journal Article · 23 November 2020 · Physical Review D

DOI: https://doi.org/10.1103/physrevd.102.094018 · OSTI ID:1756218

^[1]; Lucero, Gonzalo ^[1];

^[1];

^[2];

^[2]

Univ. of Buenos Aires (Argentina)
Brookhaven National Lab. (BNL), Upton, NY (United States)

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.

View Journal Article

Cite

Export

Save

Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); USDOE

Grant/Contract Number:: SC0012704; de-sc0012704

OSTI ID:: 1756218

Alternate ID(s):: OSTI ID: 1737435

Report Number(s):: BNL-220717-2020-JAAM; TRN: US2205315

Journal Information:: Physical Review D, Vol. 102, Issue 9; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (60)

Can the polarization of the strange quarks in the proton be positive? Leader, Elliot; Stamenov, Dimiter B. Physical Review D, Vol. 67, Issue 3 https://doi.org/10.1103/PhysRevD.67.037503	journal	February 2003
Extraction of spin-dependent parton densities and their uncertainties de Florian, Daniel; Sassot, Rodolfo; Stratmann, Marco Physical Review D, Vol. 80, Issue 3 https://doi.org/10.1103/PhysRevD.80.034030	journal	August 2009
Flavor singlet contribution to the structure functiong 1 at small-x Bartels, J.; Ermolaev, B. I.; Ryskin, M. G. Zeitschrift für Physik C: Particles and Fields, Vol. 72, Issue 4 https://doi.org/10.1007/s002880050285	journal	December 1996
Small- x Asymptotics of the Quark Helicity Distribution Kovchegov, Yuri V.; Pitonyak, Daniel; Sievert, Matthew D. Physical Review Letters, Vol. 118, Issue 5 https://doi.org/10.1103/PhysRevLett.118.052001	journal	January 2017
SU(3) breaking effects in hyperon semi-leptonic decays and the extraction of F and D Ratcliffe, Philip G. Physics Letters B, Vol. 365, Issue 1-4 https://doi.org/10.1016/0370-2693(95)01274-5	journal	January 1996
Semi-inclusive deep-inelastic scattering, parton distributions, and fragmentation functions at a future electron-ion collider Aschenauer, Elke C.; Borsa, Ignacio; Sassot, Rodolfo Physical Review D, Vol. 99, Issue 9 https://doi.org/10.1103/PhysRevD.99.094004	journal	May 2019
Reweighting and unweighting of parton distributions and the LHC W lepton asymmetry data Ball, Richard D.; Bertone, Valerio; Cerutti, Francesco Nuclear Physics B, Vol. 855, Issue 3 https://doi.org/10.1016/j.nuclphysb.2011.10.018	journal	February 2012
Reweighting NNPDFs: The W lepton asymmetry Ball, Richard D.; Bertone, Valerio; Cerutti, Francesco Nuclear Physics B, Vol. 849, Issue 1 https://doi.org/10.1016/j.nuclphysb.2011.03.017	journal	August 2011
Unveiling the proton spin decomposition at a future electron-ion collider Aschenauer, Elke C.; Sassot, Rodolfo; Stratmann, Marco Physical Review D, Vol. 92, Issue 9 https://doi.org/10.1103/PhysRevD.92.094030	journal	November 2015
Hyperon decays, EMC results and the spin structure of the proton Lipkin, Harry J. Physics Letters B, Vol. 230, Issue 1-2 https://doi.org/10.1016/0370-2693(89)91667-5	journal	October 1989
A determination of parton distributions with faithful uncertainty estimation Ball, Richard D.; Del Debbio, Luigi; Forte, Stefano Nuclear Physics B, Vol. 809, Issue 1-2 https://doi.org/10.1016/j.nuclphysb.2008.09.037	journal	March 2009
O ( α s ) spin-dependent weak structure functions de Florian, D.; Sassot, R. Physical Review D, Vol. 51, Issue 11 https://doi.org/10.1103/PhysRevD.51.6052	journal	June 1995
On the behaviour of non-singlet structure functions at small x Blümlein, J.; Vogt, A. Physics Letters B, Vol. 370, Issue 1-2 https://doi.org/10.1016/0370-2693(95)01568-X	journal	March 1996
An investigation of the spin structure of the proton in deep inelastic scattering of polarised muons on polarised protons Ashman, J.; Badelek, B.; Baum, G. Nuclear Physics B, Vol. 328, Issue 1 https://doi.org/10.1016/0550-3213(89)90089-8	journal	December 1989
Uncertainties of predictions from parton distribution functions. I. The Lagrange multiplier method Stump, D.; Pumplin, J.; Brock, R. Physical Review D, Vol. 65, Issue 1 https://doi.org/10.1103/PhysRevD.65.014012	journal	December 2001
Parton-to-pion fragmentation reloaded de Florian, Daniel; Sassot, R.; Epele, Manuel Physical Review D, Vol. 91, Issue 1 https://doi.org/10.1103/PhysRevD.91.014035	journal	January 2015
Uncertainties of predictions from parton distribution functions. II. The Hessian method Pumplin, J.; Stump, D.; Brock, R. Physical Review D, Vol. 65, Issue 1 https://doi.org/10.1103/PhysRevD.65.014013	journal	December 2001
Erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143] Ball, Richard D.; Bertone, Valerio; Cerutti, Francesco Nuclear Physics B, Vol. 854, Issue 3 https://doi.org/10.1016/j.nuclphysb.2011.09.011	journal	January 2012
The polarized two-loop massive pure singlet Wilson coefficient for deep-inelastic scattering Blümlein, J.; Raab, C.; Schönwald, K. Nuclear Physics B, Vol. 948 https://doi.org/10.1016/j.nuclphysb.2019.114736	journal	November 2019
Combined QED and QCD radiative effects in deep inelastic lepton-proton scattering: the Monte Carlo generator DJANGO6 Charchuła, K.; Schuler, G. A.; Spiesberger, H. Computer Physics Communications, Vol. 81, Issue 3 https://doi.org/10.1016/0010-4655(94)90086-8	journal	July 1994
SU(3) breaking in hyperon beta decays Roos, M. Physics Letters B, Vol. 246, Issue 1-2 https://doi.org/10.1016/0370-2693(90)91328-9	journal	August 1990
PEPSI — a Monte Carlo generator for polarized leptoproduction Mankiewicz, L.; Schäfer, A.; Veltri, M. Computer Physics Communications, Vol. 71, Issue 3 https://doi.org/10.1016/0010-4655(92)90016-R	journal	September 1992
The spin content of the proton in the light-cone quark model without SU(3) flavour symmetry Dziembowski, Z.; Franklin, J. Journal of Physics G: Nuclear and Particle Physics, Vol. 17, Issue 3 https://doi.org/10.1088/0954-3899/17/3/004	journal	March 1991
A first unbiased global determination of polarized PDFs and their uncertainties Nocera, Emanuele R.; Ball, Richard D.; Forte, Stefano Nuclear Physics B, Vol. 887 https://doi.org/10.1016/j.nuclphysb.2014.08.008	journal	October 2014
Hector 1.00 Arbuzov, A.; Bardin, D.; Blümlein, J. Computer Physics Communications, Vol. 94, Issue 2-3 https://doi.org/10.1016/0010-4655(96)00005-7	journal	April 1996
Next to leading order evolution of SIDIS processes in the forward region Daleo, A.; Sassot, R. Nuclear Physics B, Vol. 673, Issue 1-2 https://doi.org/10.1016/j.nuclphysb.2003.09.007	journal	November 2003
The calculation of the two-loop spin splitting functions P (1) ij ( x ) Mertig, R.; van Neerven, W. L. Zeitschrift f�r Physik C Particles and Fields, Vol. 70, Issue 4 https://doi.org/10.1007/s002880050138	journal	May 1996
Helicity parton distributions at a future electron-ion collider: A quantitative appraisal Aschenauer, Elke C.; Stratmann, Marco; Sassot, Rodolfo Physical Review D, Vol. 86, Issue 5 https://doi.org/10.1103/PhysRevD.86.054020	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 Blümlein, Johannes; Falcioni, Giulio; De Freitas, Abilio Nuclear Physics B, Vol. 910 https://doi.org/10.1016/j.nuclphysb.2016.06.018	journal	September 2016
Evidence for Polarization of Gluons in the Proton de Florian, Daniel; Sassot, Rodolfo; Stratmann, Marco Physical Review Letters, Vol. 113, Issue 1 https://doi.org/10.1103/PhysRevLett.113.012001	journal	July 2014
Bayesian reweighting of nuclear PDFs and constraints from proton-lead collisions at the LHC Armesto, Nestor; Rojo, Juan; Salgado, Carlos A. Journal of High Energy Physics, Vol. 2013, Issue 11 https://doi.org/10.1007/JHEP11(2013)015	journal	November 2013
Monte Carlo sampling variant of the DSSV14 set of helicity parton densities de Florian, Daniel; Lucero, Gonzalo Agustín; Sassot, Rodolfo Physical Review D, Vol. 100, Issue 11 https://doi.org/10.1103/PhysRevD.100.114027	journal	December 2019
Probing the sea quark content of the proton with one-particle-inclusive processes Borsa, Ignacio; Sassot, Rodolfo; Stratmann, Marco Physical Review D, Vol. 96, Issue 9 https://doi.org/10.1103/PhysRevD.96.094020	journal	November 2017
The singlet contribution to the structure function g1(x,Q2) at small x Blümlein, J.; Vogt, A. Physics Letters B, Vol. 386, Issue 1-4 https://doi.org/10.1016/0370-2693(96)00958-6	journal	October 1996
Precise determination of the spin structure function g 1 of the proton, deuteron, and neutron Airapetian, A.; Akopov, N.; Akopov, Z. Physical Review D, Vol. 75, Issue 1 https://doi.org/10.1103/PhysRevD.75.012007	journal	January 2007
Global Analysis of Helicity Parton Densities and their Uncertainties de Florian, Daniel; Sassot, Rodolfo; Stratmann, Marco Physical Review Letters, Vol. 101, Issue 7 https://doi.org/10.1103/PhysRevLett.101.072001	journal	August 2008
The spin-dependent two-loop splitting functions Vogelsang, W. Nuclear Physics B, Vol. 475, Issue 1-2 https://doi.org/10.1016/0550-3213(96)00306-9	journal	September 1996
HERACLES: an event generator for ep interactions at HERA energies including radiative processes Kwiatkowski, A.; Spiesberger, H.; Möhring, H. -J. Computer Physics Communications, Vol. 69, Issue 1 https://doi.org/10.1016/0010-4655(92)90136-M	journal	February 1992
Erratum to: “A determination of parton distributions with faithful uncertainty estimation” [Nucl. Phys. B 809 (2009) 1–63] Ball, Richard D.; Del Debbio, Luigi; Forte, Stefano Nuclear Physics B, Vol. 816, Issue 1-2 https://doi.org/10.1016/j.nuclphysb.2009.02.027	journal	July 2009
Small- x asymptotics of the quark helicity distribution: Analytic results Kovchegov, Yuri V.; Pitonyak, Daniel; Sievert, Matthew D. Physics Letters B, Vol. 772 https://doi.org/10.1016/j.physletb.2017.06.032	journal	September 2017
The spin structure of the nucleon Aidala, Christine A.; Bass, Steven D.; Hasch, Delia Reviews of Modern Physics, Vol. 85, Issue 2 https://doi.org/10.1103/RevModPhys.85.655	journal	April 2013
The 3-loop non-singlet heavy flavor contributions to the structure function g1(x,Q2) at large momentum transfer Behring, A.; Blümlein, J.; De Freitas, A. Nuclear Physics B, Vol. 897 https://doi.org/10.1016/j.nuclphysb.2015.06.007	journal	August 2015
Helicity at small x: oscillations generated by bringing back the quarks Kovchegov, Yuri V.; Tawabutr, Yossathorn Journal of High Energy Physics, Vol. 2020, Issue 8 https://doi.org/10.1007/JHEP08(2020)014	journal	August 2020
PDF reweighting in the Hessian matrix approach Paukkunen, Hannu; Zurita, Pia Journal of High Energy Physics, Vol. 2014, Issue 12 https://doi.org/10.1007/JHEP12(2014)100	journal	December 2014
The two-mass contribution to the three-loop polarized gluonic operator matrix element A g g , Q ( 3 ) Ablinger, J.; Blümlein, J.; De Freitas, A. Nuclear Physics B, Vol. 955 https://doi.org/10.1016/j.nuclphysb.2020.115059	journal	June 2020
Neural network determination of parton distributions: the nonsinglet case Collaboration, The NNPDF; Debbio, Luigi Del; Forte, Stefano Journal of High Energy Physics, Vol. 2007, Issue 03 https://doi.org/10.1088/1126-6708/2007/03/039	journal	March 2007
Towards a global analysis of polarized parton distributions Stratmann, Marco; Vogelsang, Werner Physical Review D, Vol. 64, Issue 11 https://doi.org/10.1103/PhysRevD.64.114007	journal	November 2001
Flavor symmetry, EMC results and the spin content of the proton Lipkin, Harry J. Physics Letters B, Vol. 214, Issue 3 https://doi.org/10.1016/0370-2693(88)91389-5	journal	November 1988
Order-αs2 corrections to one-particle inclusive processes in DIS Daleo, A.; Garcı́a Canal, C. A.; Sassot, R. Nuclear Physics B, Vol. 662, Issue 1-2 https://doi.org/10.1016/S0550-3213(03)00334-1	journal	July 2003
Mapping the sensitivity of hadronic experiments to nucleon structure Wang, Bo-Ting; Hobbs, T. J.; Doyle, Sean Physical Review D, Vol. 98, Issue 9 https://doi.org/10.1103/PhysRevD.98.094030	journal	November 2018
An introduction to PYTHIA 8.2 Sjöstrand, Torbjörn; Ask, Stefan; Christiansen, Jesper R. Computer Physics Communications, Vol. 191 https://doi.org/10.1016/j.cpc.2015.01.024	journal	June 2015
SU(3) breaking effects in hyperon semi-leptonic decays and the EMC/SLAC proton spin measurements Ratcliffe, P. G. Physics Letters B, Vol. 242, Issue 2 https://doi.org/10.1016/0370-2693(90)91469-R	journal	June 1990
Electron-Ion Collider: The next QCD frontier: Understanding the glue that binds us all Accardi, A.; Albacete, J. L.; Anselmino, M. The European Physical Journal A, Vol. 52, Issue 9 https://doi.org/10.1140/epja/i2016-16268-9	journal	September 2016
Second erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143] Ball, Richard D.; Bertone, Valerio; Cerutti, Francesco Nuclear Physics B, Vol. 855, Issue 3 https://doi.org/10.1016/j.nuclphysb.2011.10.024	journal	February 2012
Spin content of the proton Close, F. E.; Roberts, R. G. Physical Review Letters, Vol. 60, Issue 15 https://doi.org/10.1103/PhysRevLett.60.1471	journal	April 1988
Parton-to-kaon fragmentation revisited de Florian, Daniel; Epele, Manuel; Hernández-Pinto, Roger J. Physical Review D, Vol. 95, Issue 9 https://doi.org/10.1103/PhysRevD.95.094019	journal	May 2017
O ( α s 2 ) QCD corrections to the electroproduction of hadrons with high transverse momentum Daleo, A.; de Florian, D.; Sassot, R. Physical Review D, Vol. 71, Issue 3 https://doi.org/10.1103/PhysRevD.71.034013	journal	February 2005
Helicity evolution at small x Kovchegov, Yuri V.; Pitonyak, Daniel; Sievert, Matthew D. Journal of High Energy Physics, Vol. 2016, Issue 1 https://doi.org/10.1007/JHEP01(2016)072	journal	January 2016
Rederivation of the spin-dependent next-to-leading order splitting functions Vogelsang, Werner Physical Review D, Vol. 54, Issue 3 https://doi.org/10.1103/PhysRevD.54.2023	journal	August 1996
The polarized three-loop anomalous dimensions from on-shell massive operator matrix elements Behring, A.; Blümlein, J.; De Freitas, A. Nuclear Physics B, Vol. 948 https://doi.org/10.1016/j.nuclphysb.2019.114753	journal	November 2019

Similar Records

Measurement of Single Spin Asymmetry in ³He↑(e, e'K^±)X from a Transversely Polarized ³He Target

Thesis/Dissertation · 2015 · OSTI ID:1346548

Zhao, Yuxiang

Novel Instrumentation for Advanced Quantum Chromodynamics Studies with Flavor Sensitivity

Thesis/Dissertation · 2024 · OSTI ID:2396836

Vallarino, Simone

Azimuthal transverse single-spin asymmetries of inclusive jets and identified hadrons within jets from polarized pp collisions at $\sqrt{s}$ = 200 GeV

Journal Article · 2022 · Physical Review. D. · OSTI ID:1895173

Abdallah, M. S.; Aboona, B. E.; Adam, J.; +369 more

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS

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

Citation Formats

References (60)

Similar Records

Related Subjects