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Title First analysis of world polarized DIS data with small-x helicity evolution
Authors Daniel Adamiak, Yuri Kovchegov, Wolodymyr Melnitchouk, Daniel Pitonyak, Nobuo Sato, Matthew Sievert
JLAB number JLAB-THY-21-3318
LANL number arXiv:2102.06159
Other number DOE/OR/23177-5133
Document Type(s) (Journal Article) 
Associated with EIC: Yes
Supported by Jefferson Lab LDRD Funding: No
Funding Source: Nuclear Physics (NP)
 

Journal
Compiled for Physical Review D
Volume 104
Page(s) L031501
Refereed
Publication Abstract: We present a Monte Carlo based analysis of the combined world data on polarized lepton-nucleon deep-inelastic scattering at small Bjorken x within the polarized quark dipole formalism. We show for the first time that double-spin asymmetries at x < 0.1 can be successfully described using only small-x evolution derived from first-principles QCD, allowing predictions to be made for the g1 structure function at much smaller x. Anticipating future data from the Electron-Ion Collider, we assess the impact of electromagnetic and parity-violating polarization asymmetries on g1 and demonstrate an extraction of the individual flavor helicity PDFs at small x.
Experiment Numbers: other
Group: THEORY CENTER
Document: pdf
DOI: https://doi.org/10.1103/PhysRevD.104.L031501
Accepted Manuscript: PhysRevD.104.L031501.pdf
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