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Title: Computation of parton distributions from the quasi-PDF approach at the physical point

Abstract

We show the first results for parton distribution functions within the proton at the physical pion mass, employing the method of quasi-distributions. In particular, we present the matrix elements for the iso-vector combination of the unpolarized, helicity and transversity quasi-distributions, obtained with $$N_f$$ = 2 twisted mass cloverimproved fermions and a proton boosted with momentum |$$\widehat{p}$$| = 0.83 GeV. The momentum smearing technique has been applied to improve the overlap with the proton boosted state. Moreover, we present the renormalized helicity matrix elements in the RI’ scheme, following the non-perturbative renormalization prescription recently developed by our group.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [5];  [2];  [6]
+ Show Author Affiliations
  1. Univ. of Cyprus, Nicosia (Cyprus); The Cyprus Inst., Nicosia (Cyprus)
  2. Univ. of Cyprus, Nicosia (Cyprus); Univ. of Wuppertal, Wuppertal (Germany)
  3. Goethe-Univ. Frankfurt am Main, Frankfurt am Main (Germany); Adam Mickiewicz Univ., Poznan (Poland)
  4. Temple Univ., Philadelphia, PA (United States)
  5. The Cyprus Inst., Nicosia (Cyprus)
  6. John von Neumann Inst. for Computing (NIC), Zeuthen (Germany)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1567552
Grant/Contract Number:  
PHY-1714407
Resource Type:
Accepted Manuscript
Journal Name:
EPJ Web of Conferences (Online)
Additional Journal Information:
Journal Name: EPJ Web of Conferences (Online); Journal Volume: 175; Journal ID: ISSN 2100-014X
Publisher:
EDP Sciences
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Alexandrou, Constantia, Bacchio, Simone, Cichy, Krzysztof, Constantinou, Martha, Hadjiyiannakou, Kyriakos, Jansen, Karl, Koutsou, Giannis, Scapellato, Aurora, and Steffens, Fernanda. Computation of parton distributions from the quasi-PDF approach at the physical point. United States: N. p., 2018. Web. doi:10.1051/epjconf/201817514008.
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Alexandrou, Constantia, Bacchio, Simone, Cichy, Krzysztof, Constantinou, Martha, Hadjiyiannakou, Kyriakos, Jansen, Karl, Koutsou, Giannis, Scapellato, Aurora, & Steffens, Fernanda. Computation of parton distributions from the quasi-PDF approach at the physical point. United States. https://doi.org/10.1051/epjconf/201817514008
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Alexandrou, Constantia, Bacchio, Simone, Cichy, Krzysztof, Constantinou, Martha, Hadjiyiannakou, Kyriakos, Jansen, Karl, Koutsou, Giannis, Scapellato, Aurora, and Steffens, Fernanda. Mon . "Computation of parton distributions from the quasi-PDF approach at the physical point". United States. https://doi.org/10.1051/epjconf/201817514008. https://www.osti.gov/servlets/purl/1567552.
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@article{osti_1567552,
title = {Computation of parton distributions from the quasi-PDF approach at the physical point},
author = {Alexandrou, Constantia and Bacchio, Simone and Cichy, Krzysztof and Constantinou, Martha and Hadjiyiannakou, Kyriakos and Jansen, Karl and Koutsou, Giannis and Scapellato, Aurora and Steffens, Fernanda},
abstractNote = {We show the first results for parton distribution functions within the proton at the physical pion mass, employing the method of quasi-distributions. In particular, we present the matrix elements for the iso-vector combination of the unpolarized, helicity and transversity quasi-distributions, obtained with $N_f$ = 2 twisted mass cloverimproved fermions and a proton boosted with momentum |$\widehat{p}$| = 0.83 GeV. The momentum smearing technique has been applied to improve the overlap with the proton boosted state. Moreover, we present the renormalized helicity matrix elements in the RI’ scheme, following the non-perturbative renormalization prescription recently developed by our group.},
doi = {10.1051/epjconf/201817514008},
journal = {EPJ Web of Conferences (Online)},
number = ,
volume = 175,
place = {United States},
year = {Mon Mar 26 00:00:00 EDT 2018},
month = {Mon Mar 26 00:00:00 EDT 2018}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1051/epjconf/201817514008
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Works referenced in this record:

A complete non-perturbative renormalization prescription for quasi-PDFs
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Nucleon helicity and transversity parton distributions from lattice QCD
text, January 2016

  • Chen, Jiunn-Wei; Cohen, Saul D.; Ji, Xiangdong
  • Universität Regensburg
  • DOI: 10.5283/epub.37220

A complete non-perturbative renormalization prescription for quasi-PDFs
text, January 2017

  • Alexandrou, Constantia; Cichy, Krzysztof; Constantinou, Martha
  • Deutsches Elektronen-Synchrotron, DESY, Hamburg
  • DOI: 10.3204/pubdb-2017-11468

Parton distributions from high-precision collider data
text, January 2017

  • Collaboration, Tnnpdf; Ball, Rd; Bertone, V.
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.10446

Parton distributions from high-precision collider data: NNPDF Collaboration
text, January 2017

  • Ball, Rd; Bertone, V.; Carrazza, S.
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.17542

Light hadrons from lattice QCD with light (u,d), strange and charm dynamical quarks
text, January 2010

Parton Physics on Euclidean Lattice
text, January 2013

Nucleon Helicity and Transversity Parton Distributions from Lattice QCD
text, January 2016

A complete non-perturbative renormalization prescription for quasi-PDFs
text, January 2017

A General Method for Non-Perturbative Renormalization of Lattice Operators
text, January 1994

Improved quasi parton distribution through Wilson line renormalization
text, January 2016

  • Chen, Jiunn-Wei; Ji, Xiangdong; Zhang, Jian-Hui
  • Universität Regensburg
  • DOI: 10.5283/epub.37217
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    Works referencing / citing this record:

    Gaussian-weighted parton quasi-distribution (Lattice Parton Physics Project (LP3))
    journal, April 2019

    • Ishikawa, Tomomi; Jin, LuChang; Lin, Huey-Wen
    • Science China Physics, Mechanics & Astronomy, Vol. 62, Issue 9
    • DOI: 10.1007/s11433-018-9375-1

    Semi-inclusive deep inelastic scattering in Wandzura-Wilczek-type approximation
    journal, January 2019

    Renormalization of Wilson-line operators in the presence of nonzero quark masses
    journal, July 2018

    Simulating twisted mass fermions at physical light, strange, and charm quark masses
    journal, September 2018

    • Alexandrou, Constantia; Bacchio, Simone; Charalambous, Panagiotis
    • Physical Review D, Vol. 98, Issue 5
    • DOI: 10.1103/physrevd.98.054518

    Transverse momentum dependent parton quasidistributions
    journal, June 2019

    Light-Cone Parton Distribution Functions from Lattice QCD
    journal, September 2018

    Light-Cone Parton Distribution Functions from Lattice QCD
    text, January 2018

    • Alexandrou, Constantia; Cichy, Krzysztof; Constantinou, Martha
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2018-03714

    Semi-inclusive deep-inelastic scattering in Wandzura-Wilczek-type approximation
    text, January 2019

    • Bastami, S.; Avakian, H.; Efremov, A. V.
    • Universität Regensburg
    • DOI: 10.5283/epub.45490

    Transverse momentum dependent parton quasidistributions
    text, January 2019

    • Ji, Xiangdong; Jin, Lu-Chang; Yuan, Feng
    • Universität Regensburg
    • DOI: 10.5283/epub.45502

    Renormalization of Wilson-line operators in the presence of nonzero quark masses
    journal, July 2018

    Simulating twisted mass fermions at physical light, strange, and charm quark masses
    journal, September 2018

    • Alexandrou, Constantia; Bacchio, Simone; Charalambous, Panagiotis
    • Physical Review D, Vol. 98, Issue 5
    • DOI: 10.1103/physrevd.98.054518

    Semi-inclusive deep-inelastic scattering in Wandzura-Wilczek-type approximation
    text, January 2019

    • Bastami, S.; Avakian, H.; Efremov, A. V.
    • Universität Regensburg
    • DOI: 10.5283/epub.45490
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