Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Sergio Szpigel"'
Autor:
Sergio Szpigel
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
A representação Fock-Tani é um formalismo de teoria de campos para tratar problemas envolvendo simultaneamente partículas compostas e seus constituintes. O formalismo foi originalmente desenvolvido para problemas de física atômica e nesta tese
Autor:
Sergio Szpigel, Raphael M. Thereza, Carlos Guillermo Giménez de Castro, Alexander L. MacKinnon, Paulo José de Aguiar Simões
Publikováno v:
Journal of Physics: Conference Series. 2340:012031
Recently, we have demonstrated that the Monte Carlo package FLUKA can be used as an effective tool for simulating nuclear processes which occur in solar flares and that it is capable to provide a self-consistent treatment of all typical components of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::630c20072bc6acdafd33dc058d86dc0f
https://doi.org/10.1088/1742-6596/2340/1/012031
https://doi.org/10.1088/1742-6596/2340/1/012031
In this work we have performed a detailed study of chiral nuclear forces at N4LO approximation applied to selected channels of the neutron-proton ($n p$) scattering. The idea is to analyse the different contributions to the nucleon-nucleon ($NN$) pot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::389ff587e54ccb72d7654b39d5a60115
http://arxiv.org/abs/2103.13352
http://arxiv.org/abs/2103.13352
Publikováno v:
Revista Mackenzie de Engenharia e Computação. 20
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::156efb422b2e6826548ed977b8f08496
https://doi.org/10.5935/rmec.v20n1p10-32
https://doi.org/10.5935/rmec.v20n1p10-32
We make variational estimates for the binding energies of $^2H,~^3H,~^4He,~^{16}O,~^{40}Ca$, showing their running with the Similarity Renormalization Group (SRG) cutoff towards the infrared region and show the generalized Tjon lines that emerge from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d31e38cb43cef10a789ba91bbe4dd5a
Autor:
Rafael Ricardo Rosa de Oliveira, José Tacza, Jean-Pierre Raulin, Sergio Szpigel, Vladimir Makhmutov, Maxim Philippov, Josué Ccopa, Adolfo Marun, Gérman Fernandez
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56d62db3f4cfb1796023a624abf13751
https://doi.org/10.2139/ssrn.3980615
https://doi.org/10.2139/ssrn.3980615
Gamma-ray continuum at > 10 MeV photon energy yields information on > 0.2 - 0.3 GeV/nucleon ions at the Sun. We use the general-purpose Monte Carlo code FLUKA (FLUktuierende KAskade) to model the transport of ions injected into thick and thin target
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::434ad6943c75391fc4b98204ed3989ce
http://arxiv.org/abs/2009.00414
http://arxiv.org/abs/2009.00414
Publikováno v:
Recent Progress in Few-Body Physics ISBN: 9783030323561
We study a strongly interacting many-fermion system in the unitary limit using an implicit renormalization framework and compute the Bertsch parameter \(\xi \) considering only contact interactions. The main ingredient of the calculation is the scale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4884d8cea5ab34dc6cb9e335d44bf62c
https://doi.org/10.1007/978-3-030-32357-8_132
https://doi.org/10.1007/978-3-030-32357-8_132
Publikováno v:
Recent Progress in Few-Body Physics ISBN: 9783030323561
We investigate the interplay between the pion exchanges and the contact interactions in the \(^1S_0\) channel using a N4LO chiral potential. We compute the pairing gap without the pions and show that, although the contact interactions dominate in thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5df5e89aa1c65fd4d1cdb95bcdd9650a
https://doi.org/10.1007/978-3-030-32357-8_80
https://doi.org/10.1007/978-3-030-32357-8_80
Publikováno v:
Astronomy & Astrophysics. 654:A82
Monte Carlo codes are a standard tool for studying energetic particle propagation, secondary production, and radiation in astrophysical settings. In magnetised plasmas such as those found in solar active regions, the enormous disparity between partic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ef25fbbec0c344479a52582db58e756
https://doi.org/10.1051/0004-6361/202141183
https://doi.org/10.1051/0004-6361/202141183