Zobrazeno 1 - 10
of 502
pro vyhledávání: '"A. Cucchieri"'
Probing the singularities of the Landau-Gauge gluon and ghost propagators with rational approximants
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-37 (2023)
Abstract We employ Padé approximants in the study of the analytic structure of the four-dimensional SU(2) Landau-gauge gluon and ghost propagators in the infrared regime. The approximants, which are model independent, serve as fitting functions for
Externí odkaz:
https://doaj.org/article/64a0777552d74962bedb55a78076af51
Pad\'e approximants are employed in order to study the analytic structure of the four-dimensional SU(2) Landau-gauge gluon and ghost propagators in the infrared regime. The approximants, which are model independent, are used as fitting functions to l
Externí odkaz:
http://arxiv.org/abs/2211.16088
Probing the singularities of the Landau-gauge gluon and ghost propagators with rational approximants
We employ Pad\'e approximants in the study of the analytic structure of the four-dimensional $SU(2)$ Landau-gauge gluon and ghost propagators in the infrared regime. The approximants, which are model independent, serve as fitting functions for the la
Externí odkaz:
http://arxiv.org/abs/2210.10490
Autor:
Cucchieri, Attilio, Dudal, David, Mendes, Tereza, Oliveira, Orlando, Roelfs, Martin, Silva, Paulo J.
We discuss possible definitions of the Faddeev-Popov matrix for the minimal linear covariant gauge on the lattice and present preliminary results for the ghost propagator.
Comment: 8 pages (XIII Quark Confinement and the Hadron Spectrum - Confin
Comment: 8 pages (XIII Quark Confinement and the Hadron Spectrum - Confin
Externí odkaz:
http://arxiv.org/abs/1812.00429
Autor:
Vera Stara, Margherita Rampioni, Adrian Alexandru Moșoi, Dominic M. Kristaly, Sorin-Aurel Moraru, Lucia Paciaroni, Susy Paolini, Alessandra Raccichini, Elisa Felici, Giacomo Cucchieri, Luca Antognoli, Alessandra Millevolte, Marina Antici, Mirko di Rosa
Publikováno v:
Healthcare, Vol 11, Iss 24, p 3102 (2023)
Gerontechnology is an interdisciplinary field of research involving gerontology and technology in order to help older adults identify and slow down the effects of age-related physical and cognitive decline. It has enormous potential to allow individu
Externí odkaz:
https://doaj.org/article/261d1900353341fea9928f5cf994a0a6
Autor:
Cucchieri, Attilio, Dudal, David, Mendes, Tereza, Oliveira, Orlando, Roelfs, Martin, Silva, Paulo J.
We discuss the subtleties concerning the lattice computation of the ghost propagator in linear covariant gauges, and present preliminary numerical results.
Comment: 4 pages, 2 figures, Lattice 2018 proceedings
Comment: 4 pages, 2 figures, Lattice 2018 proceedings
Externí odkaz:
http://arxiv.org/abs/1811.11521
Autor:
Cucchieri, Attilio, Dudal, David, Mendes, Tereza, Oliveira, Orlando, Roelfs, Martin, Silva, Paulo J.
Publikováno v:
Phys. Rev. D 98, 091504 (2018)
We discuss a possible definition of the Faddeev-Popov matrix for the minimal linear covariant gauge on the lattice and present first results for the ghost propagator. We consider Yang-Mills theory in four space-time dimensions, for SU(2) and SU(3) ga
Externí odkaz:
http://arxiv.org/abs/1809.08224
We consider the interquark potential in the one-gluon-exchange (OGE) approximation, using a fully nonperturbative gluon propagator from large-volume lattice simulations. The resulting VLGP potential is non-confining, showing that the OGE approximatio
Externí odkaz:
http://arxiv.org/abs/1704.08288
Autor:
Cucchieri, Attilio, Mendes, Tereza
Publikováno v:
Phys. Rev. Lett. 118, 192002 (2017)
By exploiting the similarity between Bloch's theorem for electrons in crystalline solids and the problem of Landau gauge-fixing in Yang-Mills theory on a "replicated" lattice, one is able to obtain essentially infinite-volume results from numerical s
Externí odkaz:
http://arxiv.org/abs/1612.01279
Autor:
Cucchieri, Attilio, Mendes, Tereza
We evaluate the so-called Bose-ghost propagator Q(p^2) for SU(2) gauge theory in minimal Landau gauge, considering lattice volumes up to 120^4 and physical lattice extents up to 13.5 f. In particular, we investigate discretization effects, as well as
Externí odkaz:
http://arxiv.org/abs/1611.04789