1. Home page
  2. Search

Constraining the hypothetical X17 boson from compact objects observations

This item is provided by the institution :
Hellenic Nuclear Physics Society   

Repository :
Annual Symposium of the Hellenic Nuclear Physics Society  | ΕΚΤ eProceedings   

see the original item page
in the repository's web site and access all digital files if the item*



Constraining the hypothetical X17 boson from compact objects observations (EN)
Moustakidis, Charalampos
Alkiviadis Kanakis-Pegios
Vlassios Petousis
Martin Veselsky
Jozef Leja
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
2024-07-31
We investigate the hypothetical X17 boson on neutron stars and Quark Stars (QSs) using various hadronic Equation of States (EoSs) with phenomenological or microscopic origin. Our aim is to set realistic constraints on its coupling constant and the mass scaling, with respect to causality and various possible upper mass limits and the dimensionless tidal deformability Λ1.4. In particular, we pay special attention on two main phenomenological parameters of the X17, the one is related to the coupling constant g that it has with hadrons or quarks and the other with the in-medium effects through the regulator C. Both are very crucial concerning the contribution on the total energy density and pressure.In the case of considering the X17 as a carrier of nuclear force in Relativistic Mean Field (RMF) theory, an admixture into vector boson segment was constrained by 20% and 30%.In our investigation, we came to the general conclusion that the effect of the hypothetical X17 both on neutron and QSs constrained mainly by the causality limit, which is a specific property of each EoS, and it depends on the interplay between the two main parameters, the interaction coupling g and the in-medium effects regulator C. These effects are more pronounced in the case of QSs concerning all the bulk properties. (EN)
Neutron star (EN)
Equation of State (EN)
X17 Boson (EN)
Quark Stars (EN)
Annual Symposium of the Hellenic Nuclear Physics Society
English
Hellenic Nuclear Physics Society (HNPS) (EN)
2654-0088
2654-007X
Annual Symposium of the Hellenic Nuclear Physics Society; Τόμ. 30 (2024); 67-74 (EL)
HNPS Advances in Nuclear Physics; Vol. 30 (2024): HNPS2023; 67-74 (EN)
Πνευματική ιδιοκτησία (c) 2024 Charalampos Moustakidis, Alkiviadis Kanakis-Pegios, Vlassios Petousis, Martin Veselsky, Jozef Leja (EL)
http://creativecommons.org/licenses/by-nc-nd/4.0
Hellenic Nuclear Physics Society
Annual Symposium of the Hellenic Nuclear Physics Society
Oral contributions



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)