How the HESS J1731-347 object could be explained using K - condensation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00380086" target="_blank" >RIV/68407700:21670/25:00380086 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.physletb.2024.139185" target="_blank" >https://doi.org/10.1016/j.physletb.2024.139185</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2024.139185" target="_blank" >10.1016/j.physletb.2024.139185</a>
Alternative languages
Result language
angličtina
Original language name
How the HESS J1731-347 object could be explained using K - condensation
Original language description
The recent observation of a compact star with a mass of M =0.77 +0.20 -0.17 M circle dot and a radius of R =10.4+0.86 -0.78 km, located within the supernova remnant HESS J1731-347, has substantially reinforced the evidence for the presence of exotic matter in neutron stars core. This finding has markedly enhanced our comprehension of the equation of state for dense nuclear matter. In the present work, we investigate the possible existence of a kaon condensation in hadronic neutron stars by employing and comparing two theoretical frameworks: the Relativistic Mean Field model with first order kaon condensate and the Momentum-Dependent Interaction model complemented by chiral effective theory. To the best of our knowledge, this represents a first alternative attempt aimed to explain the bulk properties of the specific object with the inclusion of a kaon condensation in dense nuclear matter. The application of two different models enriches the research, providing insights from the aspect of different theoretical frameworks that accurately predict the existence of HESS J1731-347. In both cases significant insights are extracted for the parameter space of models, emphasizing to those concerning the nucleon-kaon potential, the threshold density for the appearance of a kaon condensation, as well as the parameter a 3 m s which is related to the strangeness content of the proton. Concluding, the present research indicates that a more systematic investigation of similar objects could offer valuable constraints on the properties of dense nuclear matter.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/GA21-24281S" target="_blank" >GA21-24281S: Experiment IS581 "(d,p)-transfer induced fission of heavy radioactive beams"</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics Letters B
ISSN
0370-2693
e-ISSN
1873-2445
Volume of the periodical
860
Issue of the periodical within the volume
139185
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
1-8
UT code for WoS article
001379140700001
EID of the result in the Scopus database
2-s2.0-85211631622