Iterative Monte Carlo analysis of spin-dependent parton distributions
Abstract
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.
- Authors:
-
- 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)
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Contributing Org.:
- Jefferson Lab Angular Momentum Collaboration
- OSTI Identifier:
- 1245545
- Alternate Identifier(s):
- OSTI ID: 1245634
- Report Number(s):
- JLAB-THY-16-2200; DOE/OR/23177-3649; arXiv:1601.07782
Journal ID: ISSN 2470-0010; PRVDAQ
- Grant/Contract Number:
- AC05-06OR23177; SC008791; FG02-96ER40960; SC0006758
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 7; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Sato, Nobuo, Melnitchouk, Wally, Kuhn, Sebastian E., Ethier, Jacob J., and Accardi, Alberto. Iterative Monte Carlo analysis of spin-dependent parton distributions. United States: N. p., 2016.
Web. doi:10.1103/PhysRevD.93.074005.
Sato, Nobuo, Melnitchouk, Wally, Kuhn, Sebastian E., Ethier, Jacob J., & Accardi, Alberto. Iterative Monte Carlo analysis of spin-dependent parton distributions. United States. https://doi.org/10.1103/PhysRevD.93.074005
Sato, Nobuo, Melnitchouk, Wally, Kuhn, Sebastian E., Ethier, Jacob J., and Accardi, Alberto. Tue .
"Iterative Monte Carlo analysis of spin-dependent parton distributions". United States. https://doi.org/10.1103/PhysRevD.93.074005. https://www.osti.gov/servlets/purl/1245545.
@article{osti_1245545,
title = {Iterative Monte Carlo analysis of spin-dependent parton distributions},
author = {Sato, Nobuo and Melnitchouk, Wally and Kuhn, Sebastian E. and Ethier, Jacob J. and Accardi, Alberto},
abstractNote = {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.},
doi = {10.1103/PhysRevD.93.074005},
journal = {Physical Review D},
number = 7,
volume = 93,
place = {United States},
year = {Tue Apr 05 00:00:00 EDT 2016},
month = {Tue Apr 05 00:00:00 EDT 2016}
}
Web of Science
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- Cichy, Krzysztof; Constantinou, Martha
- Advances in High Energy Physics, Vol. 2019
Updated lattice results for parton distributions
text, January 2017
- Alexandrou, Constantia; Cichy, Krzysztof; Constantinou, Martha
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
Strange-quark asymmetry in the proton in chiral effective theory
journal, November 2016
- Wang, X. G.; Ji, Chueng-Ryong; Melnitchouk, W.
- Physical Review D, Vol. 94, Issue 9
Complete flavor decomposition of the spin and momentum fraction of the proton using lattice QCD simulations at physical pion mass
text, January 2020
- Alexandrou, C.; Bacchio, S.; Constantinou, M.
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
The spin structure of the nucleon
journal, January 1994
- Bass, S. D.; Thomas, A. W.
- Progress in Particle and Nuclear Physics, Vol. 33
The Spin Structure of the Nucleon: Proceeding of International School of Nucleon Structure: 1st Course
conference, April 2017
- Frois, B.; Hughes, V. W.; de Groot, N.
- International School of Nucleon Structure, The Spin Structure of the Nucleon
Strange quark asymmetry in the proton in chiral effective theory
text, January 2016
- Wang, X. G.; Ji, Chueng-Ryong; Melnitchouk, W.
- arXiv
Up, down, and strange nucleon axial form factors from lattice QCD
text, January 2017
- Green, Jeremy; Hasan, Nesreen; Meinel, Stefan
- arXiv
First simultaneous extraction of spin-dependent parton distributions and fragmentation functions from a global QCD analysis
text, January 2017
- Ethier, J. J.; Sato, N.; Melnitchouk, W.
- arXiv
Two-photon exchange correction to the hyperfine splitting in muonic hydrogen
text, January 2017
- Tomalak, O.
- arXiv
First Monte Carlo global analysis of nucleon transversity with lattice QCD constraints
text, January 2017
- Lin, Huey-Wen; Melnitchouk, W.; Prokudin, Alexei
- arXiv
First determination of $D^{*+}$-meson fragmentation functions and their uncertainties at next-to-next-to-leading order
text, January 2017
- Soleymaninia, Maryam; Khanpour, Hamzeh; Nejad, S. Mohammad Moosavi
- arXiv
Analytical approaches to the determination of spin-dependent parton distribution functions at NNLO approximation
text, January 2018
- Salajegheh, Maral; Nejad, S. Mohammad Moosavi; Khanpour, Hamzeh
- arXiv
First global next-to-leading order determination of diffractive parton distribution functions and their uncertainties within the {\tt xFitter} framework
text, January 2018
- Goharipour, Muhammad; Khanpour, Hamzeh; Guzey, Vadim
- arXiv
First Extraction of Transversity from a Global Analysis of Electron-Proton and Proton-Proton Data
text, January 2018
- Radici, Marco; Bacchetta, Alessandro
- arXiv
First global QCD analysis of charged hadron fragmentation functions and their uncertainties at next-to-next-to-leading order
text, January 2018
- Soleymaninia, Maryam; Goharipour, Muhammad; Khanpour, Hamzeh
- arXiv
Revealing Color Forces with Transverse Polarized Electron Scattering
text, January 2018
- Armstrong, W.; Kang, H.; Liyanage, A.
- arXiv
A guide to light-cone PDFs from Lattice QCD: an overview of approaches, techniques and results
text, January 2018
- Cichy, Krzysztof; Constantinou, Martha
- arXiv
Monte Carlo sampling variant of the DSSV14 set of helicity parton densities
text, January 2019
- de Florian, Daniel; Lucero, Gonzalo Agustin; Sassot, Rodolfo
- arXiv
Nucleon axial form factor from generalized parton distributions
text, January 2019
- Hashamipour, Hadi; Goharipour, Muhammad; Gousheh, Siamak S.
- arXiv