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Stella Schindler (MIT)16/06/2022, 11:00
Non-perturbative parton distributions that arise in the factorization of cross-sections are inaccessible to direct lattice QCD calculations, as their lightcone-dominated dynamics induce a real-time sign problem. One may circumvent this issue by constructing a lattice-calculable distribution that shares the same IR physics as the desired physical distribution, and then connecting the two...
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Patrick Barry (Jefferson Lab)16/06/2022, 11:30
Drell-Yan production data have been used to extract transverse momentum dependent parton distribution functions (TMDPDFs). The evolution of these non-perturbative objects is conveniently described in $b_T$ space, which is the Fourier conjugate to transverse momentum. Both perturbative QCD calculations and non-perturbative TMD functions comprise the Drell-Yan cross section at low and high...
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Weiyao Ke (Los Alamos National Laboratory)16/06/2022, 12:00
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