TY - JOUR
T1 - Probing the ΞN interaction through inversion of spin-doublets in ΞNαα nuclei
AU - Hiyama, E.
AU - Isaka, M.
AU - Doi, T.
AU - Hatsuda, T.
N1 - Funding Information:
The authors thank Makoto Oka for illuminating discussions. The work was supported in part by JSPS KAKENHI Grants No. JP18H05236, No. JP19K03879, and No. JP20H00155; Grant-In-Aid for Scientific Research on Innovative Areas, Grant No. JP18H05407; the National Science Foundation under Grant No. NSF PHY-1748958; and the pioneering research project “RIKEN Evolution of Matter in the Universe Program.” This work was partially supported by the “Program for Promoting Researches on the Supercomputer Fugaku” (Simulation for basic science from fundamental laws of particles to creation of nuclei) and the Joint Institute for Computational Fundamental Science (JICFuS).
Publisher Copyright:
© 2022 American Physical Society.
PY - 2022/12
Y1 - 2022/12
N2 - We propose to obtain information on the spin-isospin dependence of the ΞN interaction through the energy levels of ΞNα and ΞNαα systems, with α being a spectator to attract the ΞN pair without changing its spin-isospin structure. By using the Gaussian expansion method with the state-of-the-art ΞN potential obtained from lattice QCD calculations, it is found that ΞNαα has spin-doublet bound states with Jπ=1- and 2- in both isospin triplet and singlet channels. The inversion of the 1 - 2- spin-doublet between the iso-triplet and the iso-singlet is found to be strongly correlated with the relative strengths of the ΞN interaction in the S011, S113, S031, and S133 channels. The (K-,K+) and (K-,K0) reactions on the B10 target are proposed to produce those bound states.
AB - We propose to obtain information on the spin-isospin dependence of the ΞN interaction through the energy levels of ΞNα and ΞNαα systems, with α being a spectator to attract the ΞN pair without changing its spin-isospin structure. By using the Gaussian expansion method with the state-of-the-art ΞN potential obtained from lattice QCD calculations, it is found that ΞNαα has spin-doublet bound states with Jπ=1- and 2- in both isospin triplet and singlet channels. The inversion of the 1 - 2- spin-doublet between the iso-triplet and the iso-singlet is found to be strongly correlated with the relative strengths of the ΞN interaction in the S011, S113, S031, and S133 channels. The (K-,K+) and (K-,K0) reactions on the B10 target are proposed to produce those bound states.
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U2 - 10.1103/PhysRevC.106.064318
DO - 10.1103/PhysRevC.106.064318
M3 - Article
AN - SCOPUS:85146169187
SN - 2469-9985
VL - 106
JO - Physical Review C
JF - Physical Review C
IS - 6
M1 - 064318
ER -