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26 April 2024 |
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Open charm and bottom meson-nucleon potentials à la nuclear force | | Yasuhiro Yamaguchi
; Shigehiro Yasui
; Atsushi Hosaka
; | | Date: |
4 Jun 2022 | | Abstract: | We discuss the interaction of an open heavy meson ($ar{D}$ and
$ar{D}^{ast}$ for charm or $B$ and $B^{ast}$ for bottom) and a nucleon
($N$) by considering the $pi$, $sigma$, $
ho$, and $omega$ 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 $NN$ scatterings. We show that the resulting interaction may
accommodate $ar{D}N$ 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 $sigma$ exchange potential
plays an important role. | | Source: | arXiv, 2206.01921 | | Services: | Forum | Review | PDF | Favorites | |
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