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Autor:
Ishikawa, Tomomi
Matching of the quasi parton distribution functions between continuum and lattice is addressed using lattice perturbation theory specifically with Wilson-type fermions. The matching is done for nonlocal quark bilinear operators with a straight Wilson
Externí odkaz:
http://arxiv.org/abs/1802.02333
Autor:
Ishikawa, Tomomi, Jin, Luchang, Lin, Huey-Wen, Schäfer, Andreas, Yang, Yi-Bo, Zhang, Jian-Hui, Zhao, Yong
Publikováno v:
Sci.China Phys.Mech.Astron. 62 (2019) no.9, 991021
We propose a revised definition of quasi-distributions within the framework of large-momentum effective theory (LaMET) that improves convergence towards the large-momentum limit. Since the definition of quasi-distributions is not unique, each choice
Externí odkaz:
http://arxiv.org/abs/1711.07858
Autor:
Lin, Huey-Wen, Nocera, Emanuele R., Olness, Fred, Orginos, Kostas, Rojo, Juan, Accardi, Alberto, Alexandrou, Constantia, Bacchetta, Alessandro, Bozzi, Giuseppe, Chen, Jiunn-Wei, Collins, Sara, Cooper-Sarkar, Amanda, Constantinou, Martha, Del Debbio, Luigi, Engelhardt, Michael, Green, Jeremy, Gupta, Rajan, Harland-Lang, Lucian A., Ishikawa, Tomomi, Kusina, Aleksander, Liu, Keh-Fei, Liuti, Simonetta, Monahan, Christopher, Nadolsky, Pavel, Qiu, Jian-Wei, Schienbein, Ingo, Schierholz, Gerrit, Thorne, Robert S., Vogelsang, Werner, Wittig, Hartmut, Yuan, C. -P., Zanotti, James
In the framework of quantum chromodynamics (QCD), parton distribution functions (PDFs) quantify how the momentum and spin of a hadron are divided among its quark and gluon constituents. Two main approaches exist to determine PDFs. The first approach,
Externí odkaz:
http://arxiv.org/abs/1711.07916
Using symmetry properties, we determine the mixing pattern of a class of nonlocal quark bilinear operators containing a straight Wilson line along a spatial direction. We confirm the previous study that mixing among the lowest dimensional operators,
Externí odkaz:
http://arxiv.org/abs/1710.01089
Publikováno v:
Phys. Rev. D 98, 054504 (2018)
We present the first lattice results on isovector unpolarized and longitudinally polarized parton distribution functions (PDFs) at physical pion mass. The PDFs are obtained using the large-momentum effective field theory (LaMET) framework where the f
Externí odkaz:
http://arxiv.org/abs/1708.05301
Publikováno v:
Phys. Rev. D 96, 094019 (2017)
Quasi-parton distribution functions have received a lot of attentions in both perturbative QCD and lattice QCD communities in recent years because they not only carry good information on the parton distribution functions, but also could be evaluated
Externí odkaz:
http://arxiv.org/abs/1707.03107
Autor:
Chen, Jiunn-Wei, Ishikawa, Tomomi, Jin, Luchang, Lin, Huey-Wen, Yang, Yi-Bo, Zhang, Jian-Hui, Zhao, Yong
Publikováno v:
Phys. Rev. D 97, 014505 (2018)
We present lattice results for the isovector unpolarized parton distribution with nonperturbative RI/MOM-scheme renormalization on the lattice. In the framework of large-momentum effective field theory (LaMET), the full Bjorken-$x$ dependence of a mo
Externí odkaz:
http://arxiv.org/abs/1706.01295
Publikováno v:
PoS(LATTICE2016)177
In recent years, the quasi parton distribution has been introduced for extracting the parton distribution functions from lattice QCD simulations. The quasi and standard distribution share the same perturbative collinear singularity and the renormaliz
Externí odkaz:
http://arxiv.org/abs/1703.08699
A completely new strategy to calculate parton distribution functions on the lattice has recently been proposed. In this method, lattice calculable observables, called quasi distributions, are related to normal distributions. The quasi distributions a
Externí odkaz:
http://arxiv.org/abs/1609.02018