The structure of hypernuclei and hyperon mixing in neutron-star matter

Emiko Hiyama, Y. Yamamoto, H. Sagawa

Research output: Contribution to journalReview article

1 Citation (Scopus)

Abstract

We review our recent studies of the structure of hypernuclei within the framework of the Gaussian expansion method for s- and p-shell hypernuclei and the mean-field approach for sd-shell hypernuclei. Specifically, we focus on the structures of (i) the energy splittings of the 3/2+-5/2+ and 3/2--1/2- levels in 9 Be and 13 within the framework of 2α +and 3α+ three- and four-body cluster models for the hyperon-nucleon (Y-N) spin-orbit force; (ii) the 3n system for N - σN coupling; (iii) the weakly bound states or resonant states of neutron-rich hypernuclei such as 6H and 7 He within the framework of t + n + n and α ++n + four-body models; and (iv) the tensor correlation effect and super-deformation structure of hypernuclei based on sd-shell nuclei with mass 20 ≤ A ≤ 40 using the deformed Skyrme-Hartree-Fock model and the antisymmetrized molecular dynamics model. As an extreme limit of nuclei including multiple hyperons, we review hyperon effects in neutron-star matter in the high-density region using recent Y-N interactions.

Original languageEnglish
Article number093001
JournalPhysica Scripta
Volume91
Issue number9
DOIs
Publication statusPublished - Jul 27 2016

Fingerprint

hypernuclei
Neutron Stars
neutron stars
Shell
Nucleus
Neutron
Bound States
Molecular Dynamics
Mean Field
Dynamic Model
Extremes
Tensor
Orbit
nuclei
hyperons
Model
dynamic models
sands
Energy
Interaction

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

Cite this

The structure of hypernuclei and hyperon mixing in neutron-star matter. / Hiyama, Emiko; Yamamoto, Y.; Sagawa, H.

In: Physica Scripta, Vol. 91, No. 9, 093001, 27.07.2016.

Research output: Contribution to journalReview article

@article{7374aff030b54bb19ae92bd5467a5806,
title = "The structure of hypernuclei and hyperon mixing in neutron-star matter",
abstract = "We review our recent studies of the structure of hypernuclei within the framework of the Gaussian expansion method for s- and p-shell hypernuclei and the mean-field approach for sd-shell hypernuclei. Specifically, we focus on the structures of (i) the energy splittings of the 3/2+-5/2+ and 3/2--1/2- levels in 9 Be and 13 within the framework of 2α +and 3α+ three- and four-body cluster models for the hyperon-nucleon (Y-N) spin-orbit force; (ii) the 3n system for N - σN coupling; (iii) the weakly bound states or resonant states of neutron-rich hypernuclei such as 6H and 7 He within the framework of t + n + n and α ++n + four-body models; and (iv) the tensor correlation effect and super-deformation structure of hypernuclei based on sd-shell nuclei with mass 20 ≤ A ≤ 40 using the deformed Skyrme-Hartree-Fock model and the antisymmetrized molecular dynamics model. As an extreme limit of nuclei including multiple hyperons, we review hyperon effects in neutron-star matter in the high-density region using recent Y-N interactions.",
author = "Emiko Hiyama and Y. Yamamoto and H. Sagawa",
year = "2016",
month = "7",
day = "27",
doi = "10.1088/0031-8949/91/9/093001",
language = "English",
volume = "91",
journal = "Physica Scripta",
issn = "0031-8949",
publisher = "IOP Publishing Ltd.",
number = "9",

}

TY - JOUR

T1 - The structure of hypernuclei and hyperon mixing in neutron-star matter

AU - Hiyama, Emiko

AU - Yamamoto, Y.

AU - Sagawa, H.

PY - 2016/7/27

Y1 - 2016/7/27

N2 - We review our recent studies of the structure of hypernuclei within the framework of the Gaussian expansion method for s- and p-shell hypernuclei and the mean-field approach for sd-shell hypernuclei. Specifically, we focus on the structures of (i) the energy splittings of the 3/2+-5/2+ and 3/2--1/2- levels in 9 Be and 13 within the framework of 2α +and 3α+ three- and four-body cluster models for the hyperon-nucleon (Y-N) spin-orbit force; (ii) the 3n system for N - σN coupling; (iii) the weakly bound states or resonant states of neutron-rich hypernuclei such as 6H and 7 He within the framework of t + n + n and α ++n + four-body models; and (iv) the tensor correlation effect and super-deformation structure of hypernuclei based on sd-shell nuclei with mass 20 ≤ A ≤ 40 using the deformed Skyrme-Hartree-Fock model and the antisymmetrized molecular dynamics model. As an extreme limit of nuclei including multiple hyperons, we review hyperon effects in neutron-star matter in the high-density region using recent Y-N interactions.

AB - We review our recent studies of the structure of hypernuclei within the framework of the Gaussian expansion method for s- and p-shell hypernuclei and the mean-field approach for sd-shell hypernuclei. Specifically, we focus on the structures of (i) the energy splittings of the 3/2+-5/2+ and 3/2--1/2- levels in 9 Be and 13 within the framework of 2α +and 3α+ three- and four-body cluster models for the hyperon-nucleon (Y-N) spin-orbit force; (ii) the 3n system for N - σN coupling; (iii) the weakly bound states or resonant states of neutron-rich hypernuclei such as 6H and 7 He within the framework of t + n + n and α ++n + four-body models; and (iv) the tensor correlation effect and super-deformation structure of hypernuclei based on sd-shell nuclei with mass 20 ≤ A ≤ 40 using the deformed Skyrme-Hartree-Fock model and the antisymmetrized molecular dynamics model. As an extreme limit of nuclei including multiple hyperons, we review hyperon effects in neutron-star matter in the high-density region using recent Y-N interactions.

UR - http://www.scopus.com/inward/record.url?scp=84985955445&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84985955445&partnerID=8YFLogxK

U2 - 10.1088/0031-8949/91/9/093001

DO - 10.1088/0031-8949/91/9/093001

M3 - Review article

AN - SCOPUS:84985955445

VL - 91

JO - Physica Scripta

JF - Physica Scripta

SN - 0031-8949

IS - 9

M1 - 093001

ER -