论文标题
$δ^0δ^0 $ dibaryon在qCD中的调查
Investigation of $Δ^0Δ^0$ dibaryon in QCD
论文作者
论文摘要
我们通过QCD总规则法研究了一个假设的$δ^0δ^0 $ dibaryon状态。我们构建一个标量插值电流，以考虑到各种夸克，gluon和混合真空冷凝水的贡献，以提取该状态的质量和衰减常数。质量和衰减常数的预测为$ m_d = 2326^{+114} _ { - 126}〜\ mathrm {Mev} $和$ f_d = 2.94^{+0.30} _ { - 0.34}我们还估计了$δ^0δ^0 $ dibaryon的结合能和大小。所获得的质量值低于$δ^0δ^0 $阈值，可能是通过实验观察到的良好Dibaryon候选者。
We study a hypothetical $Δ^0Δ^0$ dibaryon state by means of QCD sum rule method. We construct a scalar interpolating current to extract the mass and decay constant of this state taking into account contributions of various quark, gluon and mixed vacuum condensates. The predictions for the mass and decay constants are $m_D=2326^{+114}_{-126} ~\mathrm{MeV}$ and $f_D=2.94^{+0.30}_{-0.34}\times 10^{-4} ~\mathrm{GeV}^7$, respectively. We also made an estimation about binding energy and size of the $Δ^0Δ^0$ dibaryon. The obtained mass value is below the $Δ^0Δ^0$ threshold and may be a good dibaryon candidate for being observed experimentally.
