Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

Universal Nuclear Equation of State Introducing the Hypothetical X17 Boson

NázevTitle
Universal Nuclear Equation of State Introducing the Hypothetical X17 BosonUniversal Nuclear Equation of State Introducing the Hypothetical X17 Boson
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
M. Veselský, V. Petousis, J. Leja, L. Navarro
DOIDOI
10.3390/sym15010049
Časopis / citaceJournal / citation
Symmetry. 2023, 15(1), 1-6. ISSN 2073-8994.
RokYear
2023
JazykLanguage
eng
WoSWoS
000921205600001
ScopusScopus
2-s2.0-85146802533
RIVRIV
RIV/68407700:21670/23:00363852!RIV24-GA0-21670___
ProjektProject
Experiment IS581 "Štěpení těžkých radiaktivních svazků v reakcích (d,p)-transferu"Experiment IS581 "(d,p)-transfer induced fission of heavy radioactive beams"

AbstraktAbstract

Within the scope of the Symmetry journal special issue on: "The Nuclear Physics of Neutron Stars", we complemented the nuclear equation of state (EoS) with a hypothetical 17 MeV boson and observed that only instances with an admixture of 30%-40% satisfy all of the constraints. The successful EoS resulted in a radius of around 13 km for a neutron star with mass MNS asymptotic to 1.4M circle dot and in a maximum mass of around M-NS asymptotic to 2.5M circle dot. The value of the radius is in agreement with the recent measurement by NICER. The maximum mass is also in agreement with the mass of the remnant of the gravitational wave event GW190814. Thus, it appears that these EoSs satisfy all of the existing experimental constraints and can be considered as universal nuclear equations of state.

Within the scope of the Symmetry journal special issue on: "The Nuclear Physics of Neutron Stars", we complemented the nuclear equation of state (EoS) with a hypothetical 17 MeV boson and observed that only instances with an admixture of 30%-40% satisfy all of the constraints. The successful EoS resulted in a radius of around 13 km for a neutron star with mass MNS asymptotic to 1.4M circle dot and in a maximum mass of around M-NS asymptotic to 2.5M circle dot. The value of the radius is in agreement with the recent measurement by NICER. The maximum mass is also in agreement with the mass of the remnant of the gravitational wave event GW190814. Thus, it appears that these EoSs satisfy all of the existing experimental constraints and can be considered as universal nuclear equations of state.