Published 2021 | Version v1
Journal article Metadata-only

Neutron star structure with nuclear force mediated by hypothetical X17 boson

Creators

  • 1. Czech Technical University in Prague -Institute of Experimental and Applied Physics (Czech Republic)
  • 2. Faculty of Mechanical Engineering -Slovak University of Technology in Bratislava (Slovakia)

Description

A reported 17 MeV boson, which has been proposed as an explanation to the 8Be and 4He anomaly, is investigated in the context of its possible influence to neutron stars structure. Implementing a mX =17 MeV to the nuclear equation of state using different incompressibility values K0=245 MeV and K0=260 MeV and solving Tolman-Oppenheimer-Volkoff equations, we estimate an upper limit of MTOV ≈ 2.4M⊙ for a non rotating neutron star with span in radius R between 11.5 km to 14 km. Moving away from pure -NN with admixture of 10% protons and simulating possible softening of equation of state due to hyperons, we see that our estimated limits fit quite well inside the newest reported studies, coming from neutron stars merger event, GW190814

Availability note (English)

Available from https://www.epj-conferences.org/articles/epjconf/pdf/2021/06/epjconf_hinpw62021_04008.pdf; https://doaj.org/article/6bd6356339fe4e0383109a90483cfa40

Additional details

Identifiers

URL
https://www.epj-conferences.org/articles/epjconf/pdf/2021/06/epjconf_hinpw62021_04008.pdf; https://doaj.org/article/6bd6356339fe4e0383109a90483cfa40;
DOI
10.1051/epjconf/202125204008;

Publishing Information

Journal Title
EPJ. Web of Conferences
Journal Volume
252
Journal Page Range
vp.
ISSN
2100-014X

Conference

Title
6. International Workshop on Perspectives on Nuclear Physics - From Fundamentals to Applications
Acronym
HINPw6
Dates
14-16 May 2021
Place
Athens (Greece)

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
53090174
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BERYLLIUM 8; BOSONS; EQUATIONS OF STATE; HELIUM 4; HYPERONS; MEV RANGE; NEUTRON STARS; NUCLEAR FORCES; PROTONS
Descriptors DEC
ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; BARYONS; BERYLLIUM ISOTOPES; ELEMENTARY PARTICLES; ENERGY RANGE; EQUATIONS; EVEN-EVEN NUCLEI; FERMIONS; HADRONS; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; NUCLEI; NUCLEONS; RADIOISOTOPES; STABLE ISOTOPES; STARS; STRANGE PARTICLES