Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Rico Zöllner"'
Autor:
Rico Zöllner, Burkhard Kämpfer
Publikováno v:
Symmetry, Vol 16, Iss 8, p 999 (2024)
The holographic Einstein–Maxwell-dilaton model is employed to map state-of-the-art lattice QCD thermodynamics data from the temperature (T) axis towards the baryon–chemical potential (μB) axis and aims to gain a warm equation of state (EoS) of d
Externí odkaz:
https://doaj.org/article/4a949dab8fdf45e08710be74313f315e
Publikováno v:
Particles, Vol 6, Iss 1, Pp 217-238 (2023)
In this paper, the impact of core mass on the compact/neutron-star mass-radius relation is studied. Besides the mass, the core is parameterized by its radius and surface pressure, which supports the outside one-component Standard Model (SM) matter. T
Externí odkaz:
https://doaj.org/article/ceb69a3adcaa403d819fa3331f269358
Autor:
Rico Zöllner, Burkhard Kämpfer
Publikováno v:
Particles, Vol 4, Iss 2, Pp 159-177 (2021)
A holographic model of probe quarkonia is presented, where the dynamical gravity–dilaton background was adjusted to the thermodynamics of 2 + 1 flavor QCD with physical quark masses. The quarkonia action was modified to account for the systematic s
Externí odkaz:
https://doaj.org/article/7b8acee2138e469da628034342f564b3
Autor:
Burkhard Kampfer, Rico Zöllner
Publikováno v:
arXiv:2002.07200 [hep-ph]: https://arxiv.org/abs/2002.07200
European Physical Journal-Special Topics 229(2020), 3585
European Physical Journal-Special Topics 229(2020), 3585
A holographic model of probe vector mesons (quarkonia) is presented, where the dynamical gravity-dilaton background is adjusted to the thermodynamics of 2 +1 flavor QCD with physical quark masses. The vector meson action is modified to account for va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c8e63a7b973952c7121f6888dced50f
https://doi.org/10.1140/epjst/e2020-000031-9
https://doi.org/10.1140/epjst/e2020-000031-9
Autor:
Rico Zöllner, Burkhard Kampfer
Publikováno v:
Physical Review D 104(2021), 106005
Physical Review
arXiv:2109.05824 [hep-th]: https://arxiv.org/abs/2109.05824
Physical Review
arXiv:2109.05824 [hep-th]: https://arxiv.org/abs/2109.05824
The shrinking of the bottomonium spectral function towards narrow quasiparticle states in a cooling strong-interaction medium at finite baryon density is followed within a holographic bottom-up model. The five-dimensional Einstein-dilaton-Maxwell bac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9393eecde9364ac6f24b5a25d40cd1ca
Phase structures emerging from holography with Einstein-gravity-dilaton models at finite temperature
Autor:
Burkhard Kampfer, Rico Zöllner
Publikováno v:
The European Physical Journal Plus. 135
Asymptotic AdS Riemann space-times in five dimensions with a black brane (horizon) sourced by a fully back-reacted scalar field (dilaton) offer—via the holographic dictionary—various options for the thermodynamics of the flat four-dimensional bou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::328e688cdd15ef7645a5a1f21ba8b054
https://doi.org/10.1140/epjp/s13360-020-00106-3
https://doi.org/10.1140/epjp/s13360-020-00106-3
Autor:
Burkhard Kampfer, Rico Zöllner
Publikováno v:
Journal of Physics: Conference Series 1024(2018), 012003
Within a holographic framework, we consider vector mesons riding on a gravity-dilaton background. The latter one is determined directly from a Schr\"odinger equivalent potential which delivers a proper $\rho$ meson Regge trajectory. The mapping on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::241718734166ece4bdf148a00f7302a8
http://arxiv.org/abs/1708.05833
http://arxiv.org/abs/1708.05833
Autor:
Burkhard Kampfer, Rico Zöllner
Publikováno v:
European Physical Journal A 53(2017), 139
The soft wall model is extended to accommodate at the same time (i) approximately linear $\rho$ meson Regge trajectories at zero temperature $T$, (ii) various options for the thermodynamics with reference to QCD (cross over or second-order transition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b851d2c2d42e7a05841b9573e3316cdb
https://www.hzdr.de/publications/Publ-24780-2
https://www.hzdr.de/publications/Publ-24780-2
Publikováno v:
arXiv:1611.04124: https://arxiv.org/abs/1611.04124
The soft-wall model, emerging as bottom-up holographic scenario anchored in the AdS/CFT correspondence, displays the disappearance of normalisable modes referring to vector mesons at a temperature $T_{\dis}$ depending on the chemical potential $\mu$,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cacf6349cacc90eb96b4a8461284059
https://doi.org/10.5506/aphyspolbsupp.10.789
https://doi.org/10.5506/aphyspolbsupp.10.789