3 papers
hep-ph2025
An extraction of the Collins-Soper kernel from a joint analysis of experimental and lattice data
Artur Avkhadiev, Valerio Bertone, Chiara Bissolotti +6
We present a first joint extraction of the Collins-Soper kernel (CSK) combining experimental and lattice QCD data in the context of an analysis of transverse-momentum-dependent dis…
hep-lat2020
Collins-Soper Kernel for TMD Evolution from Lattice QCD
Phiala Shanahan, Michael Wagman, Yong Zhao
The Collins-Soper kernel relates transverse momentum-dependent parton distribution functions (TMDPDFs) at different energy scales. For small parton transverse momentum $q_T\sim Λ_\…
physics.atom-ph2019
Application of the Hylleraas--spline basis set: Nonrelativistic Bethe logarithm of helium
San-Jiang Yang, Yong-Bo Tang, Yong-Hua Zhao +2
In this work, we report an application of Hylleraas--spline basis set to the nonrelativistic Bethe logarithm calculation of helium. The Bethe logarithm for , up to 1…