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Collins-Soper kernel for TMD evolution from lattice QCD

Author(s)
Shanahan, Phiala; Wagman, Michael; Zhao, Yong
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Abstract
© 2020 authors. Published by the American Physical Society. The Collins-Soper kernel relates transverse momentum-dependent parton distribution functions (TMDPDFs) at different energy scales. For small parton transverse momentum qT∼ΛQCD, this kernel is nonperturbative and can only be determined with controlled uncertainties through experiment or first-principles calculations. This work presents the first exploratory determination of the Collins-Soper kernel using the lattice formulation of quantum chromodynamics. In a quenched calculation, the Nf=0 kernel is determined at scales in the range 250 MeV<qT<2 GeV, and an analysis of the remaining systematic uncertainties is undertaken.
Date issued
2020
URI
https://hdl.handle.net/1721.1/135394
Journal
Physical Review D
Publisher
American Physical Society (APS)
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21721.1/135394.22022-06-30T19:28:08ZMetadata changed: Verified or entered author name and department authority metadata.
11721.1/135394*2021-10-27T20:23:16Z

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