23-27 October 2023
Facultad de Físicas
Europe/Madrid timezone

A journey through the heavy-light Sudakov universality class arising in Lattice calculation of Parton distributions

Not scheduled
Aula M1 (Facultad de Físicas)

Aula M1

Facultad de Físicas

Plaza de Ciencias 1, 28040, Madrid


Yizhuang Liu (Jagiellonian University)


In this talk we will provide a survey of three fundamental objects: quasi-TMDPDF, quasi-LFWF amplitudes and (quark non-singlet ) quasi-PDF matching kernel that appears naturally in lattice calculation of various parton distribution functions. We demonstrate how TMD factorization or threshold factorization works for the corresponding objects with a common perturbative hard kernel: the universal heavy-light Sudakov form factor. We show how the universal TMDPDF/LFWF amplitudes can be extracted by combining factorization theorems for the quasi-TMD quantities with an auxiliary space-like form factor. Finally, we explain how the NNLO heavy-light Sudakov form factor can be extracted through the threshold limit of quasi-PDF matching kernel.

Primary author

Yizhuang Liu (Jagiellonian University)

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