论文标题
开放式魅力和底部梅森 - 核子电势 - 核力量
Open charm and bottom meson-nucleon potentials à la nuclear force
论文作者
论文摘要
我们讨论了一个开放的沉重介子（$ \ bar {d} $和$ \ bar {d}^{\ ast} $，用于魅力或$ b $和$ b $和$ b^{\ ast} $ for bottom）和nucleon（$ n $）的相互作用（$ n $），以考虑$π$，$π$，$ρ$，$ρ$和$ρ$，$ n $。我们通过尊重轻夸克的手性对称性和重型夸克的自旋对称性来构建潜在模型。通过引用现象学核（CD-BONN）的电势来调整模型参数，从而繁殖低能量$ nn $散射。我们表明，随之而来的交互可以容纳$ \ bar {d} n $和$ bn $绑定的状态，具有量子数$ i（j^{p}）= 0（1/2^{ - }）$，以及带有$ i（j^{p}）= 1（j^{p}）= 1（1/2^{ - } { - }）$的$ bn $ bund State。我们发现，在当前的潜在模型中，$σ$交换潜力起着重要作用。
We discuss the interaction of an open heavy meson ($\bar{D}$ and $\bar{D}^{\ast}$ for charm or $B$ and $B^{\ast}$ 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 $NN$ scatterings. We show that the resulting interaction may accommodate $\bar{D}N$ 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 $σ$ exchange potential plays an important role.
