Zobrazeno 71 - 80
of 1 724
pro vyhledávání: '"Frederico, T."'
We propose a method to reconstruct the Bethe-Salpeter amplitude in Minkowski space given the Euclidean Bethe-Salpeter amplitude -- or alternatively the Light-Front wave function -- as input. The method is based on the numerical inversion of the Nakan
Externí odkaz:
http://arxiv.org/abs/1701.02479
Publikováno v:
Few-Body Syst (2017) 58: 60
We report a study on the low-energy properties of the elastic $s-$wave scattering of a neutron ($n$) in the carbon isotope $^{19}$C near the critical condition for the occurrence of an excited Efimov state in the three-body $n-n-^{18}$C system. For t
Externí odkaz:
http://arxiv.org/abs/1611.09204
Autor:
Gigante, V., Nogueira, J. H. Alvarenga, Ydrefors, E., Gutierrez, C., Karmanov, V. A., Frederico, T.
Publikováno v:
Phys. Rev. D 95, 056012 (2017)
We investigate the response of the bound state structure of a two-boson system, within a Yukawa model with a scalar boson exchange, to the inclusion of the cross-ladder contribution to the ladder kernel of the Bethe-Salpeter equation. The equation is
Externí odkaz:
http://arxiv.org/abs/1611.03773
Publikováno v:
Phys. Lett. B 764 (2017) 196
The low-energy properties of the elastic $s-$wave scattering for the $n-^{19}$C are studied near the critical condition for the occurrence of an excited Efimov state in $n-n-^{18}$C. It is established to which extent the universal scaling laws, stric
Externí odkaz:
http://arxiv.org/abs/1611.03381
We determine the equation of state (EOS) of nuclear matter with the inclusion of hyperons in a self-consistent manner by using a Modified Quark Meson Coupling Model (MQMC) where the confining interaction for quarks inside a baryon is represented by a
Externí odkaz:
http://arxiv.org/abs/1609.02708
Publikováno v:
Few Body Syst. 58, 98 (2017)
Final state interactions are considered to formulate the $B$ meson decay amplitude for the $K\pi\pi$ channel. The Faddeev decomposition of the Bethe-Salpeter equation is used in order to build a relativistic three-body model within the light-front fr
Externí odkaz:
http://arxiv.org/abs/1609.01568
Publikováno v:
Phys. Rev. D 94, 071901(R) (2016)
Actual solutions of the Bethe-Salpeter equation for a two-fermion bound system are becoming available directly in Minkowski space, by virtue of a novel technique, based on the so-called Nakanishi integral representation of the Bethe-Salpeter amplitud
Externí odkaz:
http://arxiv.org/abs/1609.00868
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-24 (2021)
Abstract When handling metallic centers of higher coordination numbers, one is commonly deluded with the presumption that any assembled metal complex geometry (including a crystallographic one) is good enough as a starting structure for computational
Externí odkaz:
https://doaj.org/article/9851496e94144e86a19223199550e2f6
Akademický článek
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Autor:
Páscoa, Frederico T.1 (AUTHOR), Machado, Carla M.1 (AUTHOR) cmmm@fct.unl.pt, Cardoso, João O.2 (AUTHOR), Borges, João Paulo2 (AUTHOR), Velhinho, Alexandre2 (AUTHOR)
Publikováno v:
International Journal of Advanced Manufacturing Technology. Apr2023, Vol. 125 Issue 9/10, p4647-4661. 15p. 5 Color Photographs, 3 Black and White Photographs, 1 Diagram, 2 Charts, 5 Graphs.