Heavy neutron star phenomenology with an 𝐻 dibaryon
Date
2026
Authors
Leong, J.
Guichon, P.A.M.
Thomas, A.W.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Physical Review C, 2026; 113(1):015809-1-015809-9
Statement of Responsibility
Jesper Leong, Pierre A. M. Guichon and Anthony W. Thomas
Conference Name
Abstract
The equation of state for dense nuclear matter in 𝛽 equilibrium is explored including the possibility of a doubly strange H particle. Consistent with experimental constraints, the mass of the H in free space is taken to be near the ΛΛ threshold. Within the quark-meson coupling model, which we use, no new parameters are required to describe the interaction between the H dibaryon and the other baryons. Compared with the case where only octet baryons are included, the maximum mass is only slightly reduced and the tidal deformability is essentially unchanged with this addition. In heavy neutron stars the H is abundant and extends nearly 6 km from the center of the star.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
©2026 American Physical Society