The Collins-Soper Kernel from Lattice QCD with Dynamical Fermions
ORAL
Abstract
In this talk, I present a lattice quantum chromodynamics calculation of the nonperturbative Collins-Soper kernel, which describes the energy evolution of quark transverse-momentum-dependent parton distribution functions. The kernel is extracted at transverse momentum scales in the range 400~MeV~$< q_T < 1.7$~GeV in a calculation with dynamical fermions and a larger-than-physical pion mass, with systematic treatment of operator mixings, Fourier transform, perturbative matching and power corrections.
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Publication: "The Collins-Soper Kernel from Lattice QCD with Dynamical Fermions", Phiala Shanahan, Michael Wagman and Yong Zhao, in preparation
Presenters
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Yong Zhao
Argonne National Laboratory
Authors
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Yong Zhao
Argonne National Laboratory
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Phiala E Shanahan
Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology MI, Massachusetts Institute of Technology
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Michael L Wagman
Fermilab, FNAL