Abstract
At high densities that are achieved in neutron stars, there may be additional sensitivity to certain properties of the baryonic interaction. In the present work, we consider neutron stars consisting of nucleons, leptons, and Λ-hyperons with Skyrme baryonic force. We calculate different characteristics of neutron stars such as mass, radius and tidal deformability and investigate their dependence on the properties of the interactions.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
B.P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration Collab.), “GW170817: observation of gravitational waves from a binary neutron star inspiral,”, Phys. Rev. Lett. 119, 161101 (2017).
D. E. Lanskoy and Y. Yamamoto, “Skyrme-Hartree-Fock treatment of Λ and ΛΛ hypernuclei with G-matrix motivated interactions,” Phys. Rev. C 55, 2330–2339 (1997).
B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration Collab.), “Properties of the binary neutron star merger GW170817,” Phys. Rev. X 9, 011001(2019).
P. G. Reinhard and H. Flocard, “Nuclear effective forces and isotope shifts,” Nucl. Phys. A 584, 467–488 (1995).
F. Minato and S. Chiba, “Fission barrier of actinide nuclei with double-Λ particles within the Skyrme–Hartree–Fock method,” Nucl. Phys. A 856, 55–67 (2011).
Y. Yamamoto, H. Bandō, and J. Zofka, “On the Λ-hypernuclear single particle energies,” Prog. Theor. Phys. 80, 757–761 (1988).
H. J. Schulze and E. Hiyama, “Skyrme force for light and heavy hypernuclei,” Phys. Rev. C 90, 047301 (2014).
Y. Yamamoto, T. Motoba, and T. A. Rijken, “G-matrix approach to hyperon-nucleus systems,” Prog. Theor. Phys. Suppl. 185, 72–105 (2010).
L. Mornas, “Neutron stars in a Skyrme model with hyperons,” Eur. Phys. J. A 24, 293–312 (2005).
E. Chabanat, P. Bonche, P. Haensel, J. Meyer, and R. Schaeffer, “A Skyrme parametrization from subnuclear to neutron star densities,” Nucl. Phys. A 627, 710–746 (1997).
S. Mikheev, D. Lanskoy, and T. Tretyakova, “Correlations between properties of nuclear matter and characteristics of neutron stars,” Phys. Part. Nucl. 53, 409–414 (2022).
Funding
This research has been supported by the Interdisciplinary Scientific and Educational School of Moscow University “Fundamental and Applied Space Research”. S.A. Mikheev thanks Theoretical Physics and Mathematics Advancement Foundation “BASIS” for support.
Author information
Authors and Affiliations
Corresponding authors
Ethics declarations
The authors declare that they have no conflicts of interest.
Rights and permissions
About this article
Cite this article
Lanskoy, D.E., Mikheev, S.A., Nasakin, A.I. et al. Skyrme-Like Λ Hyperonic Interactions and Neutron Stars Properties. Phys. Part. Nuclei Lett. 20, 1488–1491 (2023). https://doi.org/10.1134/S1547477123060225
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1547477123060225