论文标题
$ωp$，$ ϕp $和$ j/ψp$散射长度的比较分析来自A2，CLAS和GLUEX阈值测量值
Comparative analysis of $ωp$, $ϕp$, and $J/ψp$ scattering lengths from A2, CLAS, and GlueX threshold measurements
论文作者
论文摘要
来自杰斐逊实验室的CLAS实验的高精度$ - Meson Photoduction数据使我们能够确定$γp\ toDectp $反应的接近阈值的总横截面，并将其用于评估$ ϕp $散射长度$α__{ϕp} $。这些数据导致绝对值为$ |α_{ϕp} | =（0.063 \ pm 0.010）$ 〜fm，该$ 〜FM小于典型的强子尺寸。对$α_{ϕp} $进行的比较分析，从A2和Gluex实验中进行了$ωp$的先前确定的散射长度和$ j/ψp$。
The high accuracy $ϕ$-meson photoproduction data from the CLAS experiment in Hall~B of Jefferson Laboratory allow us to determine the near-threshold total cross section of the $γp\toϕp$ reaction and use it for evaluating the $ϕp$ scattering length $α_{ϕp}$. These data result in an absolute value of $|α_{ϕp}| = (0.063\pm 0.010)$~fm, which is smaller than the typical hadron size. A comparative analysis of $α_{ϕp}$ with the previously determined scattering lengths for $ωp$ and $J/ψp$ from the A2 and GlueX experiments is performed.
