Preprint/Report

PUBDB-2018-00750

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Computation of parton distributions from the quasi-PDF approach at the physical point

Alexandrou, C. ; Bacchio, S. ; Cichy, K. ; Constantinou, M. ; Hadjiyiannakou, K. ; Jansen, K.DESY* ; Koutsou, G. ; Scapellato, A. (Corresponding author)Extern* ; Monti Steffens, F.DESY*

2017

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Please use a persistent id in citations: doi:10.3204/PUBDB-2018-00750

Report No.: DESY-17-160; arXiv:1710.06408

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 clover-improved fermions and a proton boosted with momentum $|\vec{p}|=0.83\mbox{ GeV}$. 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.

Note: 8 pages, 6 figures; Proceedings of the 35th International Symposium on Lattice Field Theory, Granada, Spain

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Contributing Institute(s):

1. NIC (ZEU-NIC)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2017

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Database coverage:
; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article/Report/Contribution to a conference proceedings Alexandrou, C. ; Bacchio, S. ; Cichy, K.Extern* ; Constantinou, M. ; Hadjiyiannakou, K. ; Jansen, K.DESY* ; Koutsou, G. ; Scapellato, A. (Corresponding author)Extern* ; Monti Steffens, F.DESY*
Computation of parton distributions from the quasi-PDF approach at the physical point
201835th International Symposium on Lattice Field Theory, GranadaGranada, Spain, 18 Jun 2017 - 24 Jun 20172017-06-182017-06-24 The European physical journal / Web of Conferences 175, 14008 (2018) [10.1051/epjconf/201817514008]2018     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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