SCET 2023

Session

Session 13

30 Mar 2023, 11:00

Room 310, Building 91 (Lawrence Berkeley National Lab)

28. Transverse Momentum Distributions of Heavy Hadrons and Polarized Heavy Quarks

Zhiquan Sun (MIT)

30/03/2023, 11:00

We initiate the study of transverse momentum-dependent fragmentation functions (TMD FFs) for heavy quarks fragmenting into heavy hadrons, and calculate all TMD parton distribution functions (PDFs) for the production of polarized heavy quarks from gluons within nucleons. We analyze the rich hierarchies of scales involved in heavy-quark TMD FFs by matching massive SCET onto novel nonperturbative...

26. LaMET3.0: Precision parton calculations on lattice

Prof. Xiangdong Ji (University of Maryland)

30/03/2023, 11:30

To reliably calculate parton physics on lattice, precision perturbative matching at 1-2 GeV scale is important. To achieve this, one needs to properly resum large longitudinal logs and take into account leading (mass) renormalon contribution. Moreover, threshold resummation in momentum space through SCET formalism is important. Once done, iso-vector valence PDF can be calculated at present to...