Mesic nuclei with a heavy antiquark

Yamaguchi, Yasuhiro; Yasui, Shigehiro

doi:10.1093/ptep/ptx112

Cited by 3 publications

(1 citation statement)

References 103 publications

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“…The nuclear structure of charm and bottom nuclei has been studied theoretically for some possible exotic light nuclei [40]. Experiments at J-PARC, GSI-FAIR, NICA, and so on would also be interesting.…”

Section: Dnmentioning

confidence: 99%

Open charm and bottom meson-nucleon potentials à la nuclear force

Yamaguchi,

Yasui,

Hosaka

2022

Preprint

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We discuss the interaction of an open heavy meson ( D and D * for charm or B and B * for bottom) and a nucleon (N ) by considering the π, σ, ρ, and ω exchange potentials. We construct a potential model by respecting chiral symmetry for light quarks and spin symmetry for heavy quarks. Model parameters are adjusted by referring the phenomenological nuclear (CD-Bonn) potentials reproducing the low-energy N N scatterings. We show that the resulting interaction may accommodate DN and BN bound states with quantum number I(J P ) = 0(1/2 − ), and a BN bound state with I(J P ) = 1(1/2 − ). We find that, in the present potential model, the σ exchange potential plays an important role.

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Section: Dnmentioning

confidence: 99%

Open charm and bottom meson-nucleon potentials à la nuclear force

Yamaguchi,

Yasui,

Hosaka

2022

Preprint

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Spin-isospin Kondo effects for Σc and Σc* baryons and D¯
Yasui
¹
,
Miyamoto
²

2019
Phys. Rev. C
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7
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We study the Kondo effect for a c ( * c ) baryon in nuclear matter. In terms of the spin and isospin [SU(2) spin × SU(2) isospin ] symmetry, the heavy-quark spin symmetry and the S-wave interaction, we provide the general form of the Lagrangian for a c ( * c ) baryon and a nucleon. We analyze the renormalization equation at the oneloop level and find that the coexistence of spin exchange and isospin exchange magnifies the Kondo effect in comparison with the case where the spin-exchange interaction and the isospin-exchange interaction exist separately. We demonstrate that the solution exists for the ideal sets of the coupling constants, including the SU(4) symmetry as an extension of the SU(2) spin × SU(2) isospin symmetry. We also conduct a similar analysis for the Kondo effect of aD (D * ) meson in nuclear matter. On the basis of the obtained result, we conjecture that there could exist a "mapping" from the heavy meson (baryon) in vacuum onto the heavy baryon (meson) in nuclear matter.

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