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High Energy Physics - Phenomenology

arXiv:2111.07940 (hep-ph)
[Submitted on 15 Nov 2021]

Title:NICER view on holographic QCD

Authors:Niko Jokela
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Abstract:The holographic models for dense QCD matter work surprisingly well. A general implication seems that the deconfinement phase transition dictates the maximum mass of neutron stars. The nuclear matter phase turns out to be rather stiff which, if continuously merged with nuclear matter models based on effective field theories, leads to the conclusion that neutron stars do not have quark matter cores in the light of all current astrophysical data. We comment that as the perturbative QCD results are in stark contrast with strong coupling results, any future simulations of neutron star mergers incorporating corrections beyond ideal fluid should proceed cautiously. For this purpose, we provide a model which treats nuclear and quark matter phases in a unified framework at strong coupling.
Comments: 9 pages, 4 figures. Talk at the (virtual) "Quark Confinement and the Hadron Spectrum 2021" conference on 2 -- 6 August 2021 in Stavanger, Norway
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Astrophysical Phenomena (astro-ph.HE); High Energy Physics - Theory (hep-th); Nuclear Theory (nucl-th)
Report number: HIP-2021-41/TH
Cite as: arXiv:2111.07940 [hep-ph]
  (or arXiv:2111.07940v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2111.07940
Related DOI: https://doi.org/10.1051/epjconf/202225807004

Submission history

From: Niko Jokela [view email]
[v1] Mon, 15 Nov 2021 17:42:33 UTC (523 KB)
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