Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Nelson R. F. Braga"'
Autor:
Nelson R. F. Braga, Luiz F. Ferreira
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-21 (2019)
Abstract Recent investigations show that the thermal spectral function of heavy b b ¯ $$ b\overline{b} $$ and c c ¯ $$ c\overline{c} $$ vector mesons can be described using holography. These studies consider a bottom up model that captures the heav
Externí odkaz:
https://doaj.org/article/53411a6c7e544a2386694556103932f4
Autor:
Nelson R. F. Braga, Luiz F. Ferreira
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 10, Pp 1-8 (2017)
Abstract The finite temperature spectrum of pseudo-scalar glueballs in a plasma is studied using a holographic model. The $$ 0^{-+}$$ 0-+ glueball is represented by a pseudo-scalar (axion) field living in a five dimensional geometry that comes from a
Externí odkaz:
https://doaj.org/article/2509b6fd8ba34d2aa0ca75f68659c450
Publikováno v:
Physical Review
Heavy vector mesons produced in a heavy ion collision are important sources of information about the quark gluon plasma (QGP). For instance, the fraction of bottomonium states observed in such a collision is altered by the dissociation effect caused
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0936b66fa512751a6f70565148144cff
https://doi.org/10.1103/physrevd.105.114044
https://doi.org/10.1103/physrevd.105.114044
Publikováno v:
Physical Review
In this work, we investigate the melting of charmonium states within a holographic QCD model in the context of Einstein-Maxwell-Dilaton (EMD) theory. In the dual field theory, the model describes the heavy mesons inside a finite temperature and densi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e06878fae30afa038a87bae87f78ae28
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
Physical Review
Non-central heavy ion collisions lead to the production of a quark gluon plasma with angular momentum. We investigate, using holographic AdS/QCD models, how does rotation of the medium affects the confinement/deconfinement transition temperature $T_c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a25067d0323532bfa7e704c86ad2ee2
Autor:
Nelson R. F. Braga, Luiz F. Ferreira
Publikováno v:
Physics Letters
Physics Letters B, Vol 795, Iss, Pp 462-468 (2019)
Physics Letters B, Vol 795, Iss, Pp 462-468 (2019)
Heavy vector mesons detected after a heavy ion collision are important sources of information about the quark gluon plasma. The fraction of such particles that survive the plasma phase and reach the detectors is related to the dissociation degree ins
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71eb204166966fbc9aa194054b3fe2eb
https://doi.org/10.1016/j.physletb.2019.06.050
https://doi.org/10.1016/j.physletb.2019.06.050
Autor:
Nelson R. F. Braga, O. C. Junqueira
Publikováno v:
Physics Letters
Physics Letters B, Vol 820, Iss, Pp 136485-(2021)
Physics Letters B, Vol 820, Iss, Pp 136485-(2021)
The soft wall AdS/QCD holographic model provides simple estimates for the spectra of light mesons and glueballs satisfying linear Regge trajectories. It is also an interesting tool to represent the confinement/deconfinement transition of a gauge theo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61babcd36f9a429fc833b5a776348647
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
O. C. Junqueira, Nelson R. F. Braga
Publikováno v:
Physics Letters
Physics Letters B, Vol 814, Iss, Pp 136082-(2021)
Physics Letters B, Vol 814, Iss, Pp 136082-(2021)
In the holographic AdS/QCD approach, the confinement/deconfinement transition is associated with the Hawking-Page transition of a thermal anti-de Sitter (AdS) space to an AdS black hole. In the case of the hard wall model, the thermal transition take
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a1df15b3f18c87efda64d1234cd4e7c
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
Rodrigo da Mata, Nelson R. F. Braga
Publikováno v:
Physical Review
In the recent years many examples appeared in the literature where the configuration entropy (CE), introduced by Gleiser and Stamatopoulos, plays the role of an indicator of stability of physical systems. It was observed that, comparing states of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d07580a733a55ab5a52e8408f4cbefe
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http://repo.scoap3.org/api
Autor:
Nelson R. F. Braga, Luiz F. Ferreira
Publikováno v:
Physics Letters
The fraction of heavy vector mesons detected after a heavy ion collision provides information about the possible formation of a plasma state. An interesting framework for estimating the degree of dissociation of heavy mesons in a plasma is the hologr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d25b00fe52252e32cc6abe73270b518
https://doi.org/10.1016/j.physletb.2018.06.053
https://doi.org/10.1016/j.physletb.2018.06.053