Loading...
Thumbnail Image
Non-discoverable
Item

Updated lattice results for parton distributions

Alexandrou, C
Cichy, K
Constantinou, M
Hadjiyiannakou, K
Jansen, K
Steffens, F
Wiese, C
Citations
Altmetric:
Genre
Journal Article
Date
2017-07-01
Advisor
Committee member
Group
Department
Permanent link to this record
Research Projects
Organizational Units
Journal Issue
DOI
10.1103/PhysRevD.96.014513
Abstract
© 2017 American Physical Society. We provide an analysis of the x dependence of the bare unpolarized, helicity, and transversity isovector parton distribution functions (PDFs) from lattice calculations employing (maximally) twisted mass fermions. The x dependence of the calculated PDFs resembles the one of the phenomenological parameterizations, a feature that makes this approach very promising. Furthermore, we apply momentum smearing for the relevant matrix elements to compute the lattice PDFs and find a large improvement factor when compared to conventional Gaussian smearing. This allows us to extend the lattice computation of the distributions to higher values of the nucleon momentum, which is essential for the prospects of a reliable extraction of the PDFs in the future.
Description
Citation
Citation to related work
American Physical Society (APS)
Has part
Physical Review D
ADA compliance
For Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu
Embedded videos