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Title: Connected and Disconnected Sea Partons from CT18 Parametrization of PDFs

Abstract

The separation of the connected and disconnected sea partons, which were uncovered in the Euclidean path-integral formulation of the hadronic tensor, is accommodated with the CT18 parametrization of the global analysis of the parton distribution functions (PDFs). This is achieved with the help of the distinct small x x behaviors of these two sea parton components and the constraint from the lattice calculation of the ratio of the strange momentum fraction to that of the {\bar u} u or {\bar d} d in the disconnected insertion. This allows lattice calculations of separate flavors in both the connected and disconnected insertions to be directly compared with the global analysis results term by term.

Authors:
 [1];  [2];  [3];  [4];  [5]
  1. Northeastern University
  2. South China Normal University
  3. University of Kentucky
  4. Peking University
  5. Michigan State University
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1875737
Grant/Contract Number:  
AC05-00OR22725; AC05-06OR23177; SC0013065
Resource Type:
Published Article
Journal Name:
SciPost Physics Proceedings
Additional Journal Information:
Journal Name: SciPost Physics Proceedings Journal Issue: 8; Journal ID: ISSN 2666-4003
Publisher:
Stichting SciPost
Country of Publication:
Netherlands
Language:
English

Citation Formats

Hou, Tie-Jiun, Liang, Jian, Liu, Keh-Fei, Yan, Mengshi, and Yuan, Chien-Peng. Connected and Disconnected Sea Partons from CT18 Parametrization of PDFs. Netherlands: N. p., 2022. Web. doi:10.21468/SciPostPhysProc.8.067.
Hou, Tie-Jiun, Liang, Jian, Liu, Keh-Fei, Yan, Mengshi, & Yuan, Chien-Peng. Connected and Disconnected Sea Partons from CT18 Parametrization of PDFs. Netherlands. https://doi.org/10.21468/SciPostPhysProc.8.067
Hou, Tie-Jiun, Liang, Jian, Liu, Keh-Fei, Yan, Mengshi, and Yuan, Chien-Peng. Tue . "Connected and Disconnected Sea Partons from CT18 Parametrization of PDFs". Netherlands. https://doi.org/10.21468/SciPostPhysProc.8.067.
@article{osti_1875737,
title = {Connected and Disconnected Sea Partons from CT18 Parametrization of PDFs},
author = {Hou, Tie-Jiun and Liang, Jian and Liu, Keh-Fei and Yan, Mengshi and Yuan, Chien-Peng},
abstractNote = {The separation of the connected and disconnected sea partons, which were uncovered in the Euclidean path-integral formulation of the hadronic tensor, is accommodated with the CT18 parametrization of the global analysis of the parton distribution functions (PDFs). This is achieved with the help of the distinct small x x behaviors of these two sea parton components and the constraint from the lattice calculation of the ratio of the strange momentum fraction to that of the {\bar u} u ‾ or {\bar d} d ‾ in the disconnected insertion. This allows lattice calculations of separate flavors in both the connected and disconnected insertions to be directly compared with the global analysis results term by term.},
doi = {10.21468/SciPostPhysProc.8.067},
journal = {SciPost Physics Proceedings},
number = 8,
volume = ,
place = {Netherlands},
year = {Tue Jul 12 00:00:00 EDT 2022},
month = {Tue Jul 12 00:00:00 EDT 2022}
}

Works referenced in this record:

Asymptotic freedom in parton language
journal, August 1977


Sum Rule for High-Energy Electron-Proton Scattering
journal, June 1967


Ratio of strange to u / d momentum fraction in disconnected insertions
journal, August 2020


The asymmetry of antimatter in the proton
journal, February 2021


Parton degrees of freedom from the path-integral formalism
journal, August 2000


Proton Mass Decomposition from the QCD Energy Momentum Tensor
journal, November 2018


Evolution equations for connected and disconnected sea parton distributions
journal, August 2017


Gottfried sum from the ratio F 2 n / F 2 p
journal, May 1991


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


Reevaluation of the Gottfried sum
journal, July 1994


Improved measurement of the d ¯ / ū asymmetry in the nucleon sea
journal, August 2001


New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC
journal, January 2021


Origin of difference between u ¯ and d ¯ partons in the nucleon
journal, March 1994