Nonperturbative Collins-Soper kernel from chiral quarks with physical masses

We present a lattice QCD calculation of the rapidity anomalous dimension of quark transverse-momentum-dependent distributions, i.e., the Collins-Soper (CS) kernel, up to transverse separations of about 1 fm. This unitary lattice calculation is conducted, for the first time, employing the chiral-symm...

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Bibliographic Details
Main Authors: Dennis Bollweg, Xiang Gao, Swagato Mukherjee, Yong Zhao
Format: Article
Language:English
Published: Elsevier 2024-05-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269324001758