Iterative Monte Carlo analysis of spin-dependent parton distributions

Sato, Nobuo; Melnitchouk, Wally; Kuhn, Sebastian E.; Ethier, Jacob J.; Accardi, Alberto

doi:10.1103/PhysRevD.93.074005

Title: Iterative Monte Carlo analysis of spin-dependent parton distributions

Journal Article · Tue Apr 05 00:00:00 EDT 2016 · Physical Review D

DOI: https://doi.org/10.1103/PhysRevD.93.074005 · OSTI ID:1245545

Sato, Nobuo ^[1]; Melnitchouk, Wally ^[1]; Kuhn, Sebastian E. ^[2]; Ethier, Jacob J. ^[3]; Accardi, Alberto ^[4]

Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Old Dominion Univ., Norfolk, VA (United States)
College of William and Mary, Williamsburg, VA (United States)
Hampton Univ., Hampton, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

We present a comprehensive new global QCD analysis of polarized inclusive deep-inelastic scattering, including the latest high-precision data on longitudinal and transverse polarization asymmetries from Jefferson Lab and elsewhere. The analysis is performed using a new iterative Monte Carlo fitting technique which generates stable fits to polarized parton distribution functions (PDFs) with statistically rigorous uncertainties. Inclusion of the Jefferson Lab data leads to a reduction in the PDF errors for the valence and sea quarks, as well as in the gluon polarization uncertainty at x ≳ 0.1. Furthermore, the study also provides the first determination of the flavor-separated twist-3 PDFs and the d₂ moment of the nucleon within a global PDF analysis.

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Research Organization:: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Contributing Organization:: Jefferson Lab Angular Momentum Collaboration

Grant/Contract Number:: AC05-06OR23177; FG02-96ER40960; SC0006758

OSTI ID:: 1245545

Report Number(s):: JLAB-THY--16-2200; DOE/OR/23177--3649; arXiv:1601.07782

Journal Information:: Physical Review D, Journal Name: Physical Review D Journal Issue: 7 Vol. 93; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Evolution equation for the structure function g_2(x,Q^2) Braun, V. M.; Korchemsky, G. P.; Manashov, A. N. arXiv https://doi.org/10.48550/arxiv.hep-ph/0102313	text	January 2001
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Efficient evolution of unpolarized and polarized parton distributions with QCD-PEGASUS Vogt, A. arXiv https://doi.org/10.48550/arxiv.hep-ph/0408244	text	January 2004
Quark-hadron duality in electron scattering Melnitchouk, W.; Ent, R.; Keppel, C. arXiv https://doi.org/10.48550/arxiv.hep-ph/0501217	text	January 2005
QCD Sum Rule Calculation of Twist-4 Corrections to Bjorken and Ellis-Jaffe Sum Rules Stein, E.; Gornicki, P.; Mankiewicz, L. arXiv https://doi.org/10.48550/arxiv.hep-ph/9502323	text	January 1995
Target mass effects in polarized deep-inelastic scattering Piccione, A.; Ridolfi, G. arXiv https://doi.org/10.48550/arxiv.hep-ph/9707478	text	January 1997
Spin Physics and Polarized Structure Functions Lampe, Bodo; Reya, Ewald arXiv https://doi.org/10.48550/arxiv.hep-ph/9810270	text	January 1998
Target Mass Corrections for Polarized Structure Functions and New Sum Rules Blümlein, J.; Tkabladze, A. arXiv https://doi.org/10.48550/arxiv.hep-ph/9812478	text	January 1998
Precision Measurement of the Neutron Spin Asymmetries and Spin-dependent Structure Functions in the Valence Quark Region Zheng, X. arXiv https://doi.org/10.48550/arxiv.nucl-ex/0405006	text	January 2004
Scale dependence of twist-three contributions to single spin asymmetries Braun, Vladimir M.; Manashov, Alexander; Pirnay, Björn Universität Regensburg https://doi.org/10.5283/epub.13538	text	January 2009

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Improved determination of d ¯ ( x ) − u ¯ ( x ) flavor asymmetry in the proton by data from the BONuS experiment at JLAB and using an approach by Brodsky, Hoyer, Peterson, and Sakai Salajegheh, Maral; Khanpour, Hamzeh; Moosavi Nejad, S. Mohammad Physical Review C, Vol. 96, Issue 6 https://doi.org/10.1103/physrevc.96.065205	journal	December 2017
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Probing nuclear modifications of parton distribution functions through the isolated prompt photon production at energies available at the CERN Large Hadron Collider Goharipour, Muhammad; Rostami, S. Physical Review C, Vol. 99, Issue 5 https://doi.org/10.1103/physrevc.99.055206	journal	May 2019
Nucleon axial form factor from generalized parton distributions Hashamipour, Hadi; Goharipour, Muhammad; Gousheh, Siamak S. Physical Review D, Vol. 100, Issue 1 https://doi.org/10.1103/physrevd.100.016001	journal	July 2019
Longitudinal double-spin asymmetry for inclusive jet and dijet production in p p collisions at s = 510 GeV Adam, J.; Adamczyk, L.; Adams, J. R. Physical Review D, Vol. 100, Issue 5 https://doi.org/10.1103/physrevd.100.052005	journal	September 2019
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
Complete flavor decomposition of the spin and momentum fraction of the proton using lattice QCD simulations at physical pion mass Alexandrou, C.; Bacchio, S.; Constantinou, M. Physical Review D, Vol. 101, Issue 9 https://doi.org/10.1103/physrevd.101.094513	journal	May 2020
Strange-quark asymmetry in the proton in chiral effective theory Wang, X. G.; Ji, Chueng-Ryong; Melnitchouk, W. Physical Review D, Vol. 94, Issue 9 https://doi.org/10.1103/physrevd.94.094035	journal	November 2016
First Monte Carlo analysis of fragmentation functions from single-inclusive e + e − annihilation Sato, Nobuo; Ethier, J. J.; Melnitchouk, W. Physical Review D, Vol. 94, Issue 11 https://doi.org/10.1103/physrevd.94.114004	journal	December 2016
Up, down, and strange nucleon axial form factors from lattice QCD Green, Jeremy; Hasan, Nesreen; Meinel, Stefan Physical Review D, Vol. 95, Issue 11 https://doi.org/10.1103/physrevd.95.114502	journal	June 2017
Updated lattice results for parton distributions Alexandrou, Constantia; Cichy, Krzysztof; Constantinou, Martha Physical Review D, Vol. 96, Issue 1 https://doi.org/10.1103/physrevd.96.014513	journal	July 2017
First determination of D * -meson fragmentation functions and their uncertainties at next-to-next-to-leading order Soleymaninia, Maryam; Khanpour, Hamzeh; Nejad, S. Mohammad Moosavi Physical Review D, Vol. 97, Issue 7 https://doi.org/10.1103/physrevd.97.074014	journal	April 2018
First QCD analysis of charged hadron fragmentation functions and their uncertainties at next-to-next-to-leading order Soleymaninia, Maryam; Goharipour, Muhammad; Khanpour, Hamzeh Physical Review D, Vol. 98, Issue 7 https://doi.org/10.1103/physrevd.98.074002	journal	October 2018
First Simultaneous Extraction of Spin-Dependent Parton Distributions and Fragmentation Functions from a Global QCD Analysis Ethier, J. J.; Sato, N.; Melnitchouk, W. Physical Review Letters, Vol. 119, Issue 13 https://doi.org/10.1103/physrevlett.119.132001	journal	September 2017
First Monte Carlo Global Analysis of Nucleon Transversity with Lattice QCD Constraints Lin, H. -W.; Melnitchouk, W.; Prokudin, A. Physical Review Letters, Vol. 120, Issue 15 https://doi.org/10.1103/physrevlett.120.152502	journal	April 2018
First Extraction of Transversity from a Global Analysis of Electron-Proton and Proton-Proton Data Radici, Marco; Bacchetta, Alessandro Physical Review Letters, Vol. 120, Issue 19 https://doi.org/10.1103/physrevlett.120.192001	journal	May 2018
First Monte Carlo Global QCD Analysis of Pion Parton Distributions Barry, P. C.; Sato, N.; Melnitchouk, W. Physical Review Letters, Vol. 121, Issue 15 https://doi.org/10.1103/physrevlett.121.152001	journal	October 2018
Revealing Color Forces with Transverse Polarized Electron Scattering Armstrong, W.; Kang, H.; Liyanage, A. Physical Review Letters, Vol. 122, Issue 2 https://doi.org/10.1103/physrevlett.122.022002	journal	January 2019
Two-photon exchange correction to the Lamb shift and hyperfine splitting of S levels Tomalak, Oleksandr The European Physical Journal A, Vol. 55, Issue 5 https://doi.org/10.1140/epja/i2019-12743-1	journal	May 2019
Two-photon exchange correction to the hyperfine splitting in muonic hydrogen Tomalak, Oleksandr The European Physical Journal C, Vol. 77, Issue 12 https://doi.org/10.1140/epjc/s10052-017-5435-z	journal	December 2017
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The Spin Structure of the Nucleon: Proceeding of International School of Nucleon Structure: 1st Course Frois, B.; Hughes, V. W.; de Groot, N. International School of Nucleon Structure, The Spin Structure of the Nucleon https://doi.org/10.1142/9789814529051	conference	April 2017
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Complete flavor decomposition of the spin and momentum fraction of the proton using lattice QCD simulations at physical pion mass Alexandrou, C.; Bacchio, S.; Constantinou, M. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2020-02369	text	January 2020
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First Extraction of Transversity from a Global Analysis of Electron-Proton and Proton-Proton Data Radici, Marco; Bacchetta, Alessandro arXiv https://doi.org/10.48550/arxiv.1802.05212	text	January 2018
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Revealing Color Forces with Transverse Polarized Electron Scattering Armstrong, W.; Kang, H.; Liyanage, A. arXiv https://doi.org/10.48550/arxiv.1805.08835	text	January 2018
A guide to light-cone PDFs from Lattice QCD: an overview of approaches, techniques and results Cichy, Krzysztof; Constantinou, Martha arXiv https://doi.org/10.48550/arxiv.1811.07248	text	January 2018
Monte Carlo sampling variant of the DSSV14 set of helicity parton densities de Florian, Daniel; Lucero, Gonzalo Agustin; Sassot, Rodolfo arXiv https://doi.org/10.48550/arxiv.1902.10548	text	January 2019
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