Speaker
Gabriele Pierini
(The Cyprus Institute, TU Berlin)
Description
We present the unpolarized and helicity Parton Distributions (PDFs) of the nucleon using an ensemble of $N_f$=2+1+1 twisted mass clover-improved fermions with masses tuned to their physical values and lattice spacing of $a=0.080$ fm. We analyze seven momentum boosts up to $P_z=1.69$ GeV. At boost $P_z=1.21$ GeV we analyze three source-sink separations, in order to investigate possible excited state contamination. We investigate both LaMET and Short Distance Factorization to obtain the light-cone PDFs and their moments, respectively. Within the LaMET framework, we investigate an alternative method for the reconstruction of the x-dependent quasi-distributions using Bayes-Gauss-Fourier Transform and compare it to Backus-Gilbert.
Author
Gabriele Pierini
(The Cyprus Institute, TU Berlin)
Co-authors
Constantia Alexandrou
Giannis Koutsou
(The Cyprus Institutes)
Joshua Miller
Krzysztof Cichy
Martha Constantinou
Minhuan Chu
(Adam Mickiewicz University)
Simone Bacchio
(The Cyprus Institute)