TY - GEN
T1 - Relativistic mean-field and beyond approaches for deformed hypernuclei
AU - Yao, J. M.
AU - Mei, H.
AU - Hagino, K.
AU - Motoba, T.
N1 - Funding Information:
part by the Tohoku University Focused Research Project “Understanding the origins of matter in the universe”, JSPS KAKENHI Grant No. 2640263, and by the National Natural Science Foundation of China under Grant No. 11575148. JMY also acknowledges the support from the National Science Foundation under Grant No. PHY-1614130, as well as the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Grants No. de-sc0017887 and de-sc0018083 (NUCLEI SciDAC Collaboration).
Publisher Copyright:
© 2019 Author(s).
PY - 2019/7/25
Y1 - 2019/7/25
N2 - We report the recent progress in relativistic mean-field (RMF) and beyond approaches for the low-energy structure of deformed hypernuclei. We show that the Λ hyperon with orbital angular momentum ℓ = 0 (or ℓ > 1) generally reduces (enhances) nuclear quadrupole collectivity. The beyond mean-field studies of hypernuclear low-lying states demonstrate that there is generally a large configuration mixing between the two components [A-1Z(I+) ⊗ - Λp1/2]J and [A-1Z(I ± 2+) ⊗ - Λp3/2]J in the hypernuclear 1/21-, 3/21- states. The mixing weight increases as the collective correlation of nuclear core becomes stronger. Finally, we show how the energies of hypernuclear low-lying states are sensitive to parameters in the effective NΛ interaction, the uncertainty of which has a large impact on the predicted maximum mass of neutron stars.
AB - We report the recent progress in relativistic mean-field (RMF) and beyond approaches for the low-energy structure of deformed hypernuclei. We show that the Λ hyperon with orbital angular momentum ℓ = 0 (or ℓ > 1) generally reduces (enhances) nuclear quadrupole collectivity. The beyond mean-field studies of hypernuclear low-lying states demonstrate that there is generally a large configuration mixing between the two components [A-1Z(I+) ⊗ - Λp1/2]J and [A-1Z(I ± 2+) ⊗ - Λp3/2]J in the hypernuclear 1/21-, 3/21- states. The mixing weight increases as the collective correlation of nuclear core becomes stronger. Finally, we show how the energies of hypernuclear low-lying states are sensitive to parameters in the effective NΛ interaction, the uncertainty of which has a large impact on the predicted maximum mass of neutron stars.
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U2 - 10.1063/1.5118376
DO - 10.1063/1.5118376
M3 - Conference contribution
AN - SCOPUS:85070272766
T3 - AIP Conference Proceedings
BT - 13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018
A2 - Schumacher, Reinhard
A2 - Tang, Liguang
PB - American Institute of Physics Inc.
T2 - 13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018
Y2 - 24 June 2018 through 29 June 2018
ER -