Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Nelson R.F. Braga"'
Publikováno v:
Physics Letters B, Vol 855, Iss , Pp 138813- (2024)
We study the confinement/deconfinement transition of QCD matter for a quark-gluon plasma at finite density using AdS/QCD duality. In order to determine the critical temperature and its dependence on the quark chemical potential, the semi-classical Ha
Externí odkaz:
https://doaj.org/article/eca05f54ea564ea0b60509adf6a1f8ed
Publikováno v:
Physics Letters B, Vol 848, Iss , Pp 138330- (2024)
Rotation affects the transition temperature between confined (hadronic) and deconfined (quark-gluon plasma) phases of the strongly interacting matter produced in non-central heavy ion collisions. A holographic description of this effect was presented
Externí odkaz:
https://doaj.org/article/e0e08c84c3e44ccd8b4f703461ab6868
Publikováno v:
Physics Letters B, Vol 847, Iss , Pp 138265- (2023)
The configuration entropy (CE) provides a measure of the stability of physical systems that are spatially localized. An increase in the CE is associated with an increase in the instability of the system. In this work we apply a recently developed hol
Externí odkaz:
https://doaj.org/article/3b873086169a4200a62f2bb1e8ee3bdb
Publikováno v:
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://doaj.org/article/b742cc8717d8418c948b033f1b6e3934
Autor:
Nelson R.F. Braga, Luiz F. Ferreira
Publikováno v:
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://doaj.org/article/8140f5acce654bc18a5b4b1be2466399
Publikováno v:
Physics Letters B, Vol 787, Iss , Pp 16-22 (2018)
We study the dissociation of heavy vector mesons in a thermal medium from the point of view of the configurational entropy. Bottomonium and charmonium vector mesons in a plasma are represented using a holographic AdS/QCD model. The quasinormal modes,
Externí odkaz:
https://doaj.org/article/62ea8b49db4544bb9e639094bd483546
Autor:
Nelson R.F. Braga, O.C. Junqueira
Publikováno v:
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://doaj.org/article/5f7972a76052469599630b0fc8d16bad
Autor:
Nelson R.F. Braga, Rodrigo da Mata
Publikováno v:
Physics Letters B, Vol 811, Iss , Pp 135918- (2020)
Heavy ion collisions, produced in particle accelerators, lead to the formation of a new state of matter, known as the quark gluon plasma. It is not possible to observe directly the plasma, where quarks and gluons are not confined into hadrons. All th
Externí odkaz:
https://doaj.org/article/4948181b4ea4434a860965a0566e2f5a
Autor:
Nelson R.F. Braga, Rodrigo da Mata
Publikováno v:
Physics Letters B, Vol 804, Iss , Pp - (2020)
There are strong indications that ultra-relativistic heavy ion collisions, produced in accelerators, lead to the formation of a new state of matter: the quark gluon plasma (QGP). This deconfined QCD matter is expected to exist just for very short tim
Externí odkaz:
https://doaj.org/article/d62743cb7cbe4ce68454ebf113c24dfe
Autor:
Nelson R.F. Braga, Roldão da Rocha
Publikováno v:
Physics Letters B, Vol 776, Iss C, Pp 78-83 (2018)
Bottomonium and charmonium, representing quarkonia states, are scrutinized under the point of view of the information theory, in the AdS/QCD holographic setup. A logarithmic measure of information, comprised by the configurational entropy, is here em
Externí odkaz:
https://doaj.org/article/b6cecf3caecc4001831f353c74af9b3b