论文标题
$ψ（2s）$的全球分析以非依赖性QCD分解为近临界顺序的包容性强生生生效
Global analysis of $ψ(2S)$ inclusive hadroproduction at next-to-leading order in nonrelativistic-QCD factorization
论文作者
论文摘要
在$α_s$中的近代领先顺序的非依赖主义-QCD分解框架中工作，我们适合$ψ（2s）$ erson的相关颜色八位（CO）长距离矩阵元素（LDMES），$ \ langle {\ cal {\ cal o}^{ψ（2s）}（{{^1S} _0^{[[8]}）\ rangle $，$ \ langle {\ cal o}^{ψ（2S）}（{^3S} o}^{ψ（2s）}（{^3p} _0^{[8]}）\ rangle $，至1001个upolarized and polarlized $ψ（2S）$包含式载体的数据点。我们进行四种不同的拟合，具有极化和低至中间横向动量$ P_T $的过滤器。我们发现，只有在大型低$ P_T $削减的情况下，可以成功地描述数据。我们的结果比以前对这些颜色八位字节长距离矩阵元素的确定更精确。
Working in the nonrelativistic-QCD factorization framework at next-to-leading order in $α_s$, we fit the relevant color octet (CO) long-distance matrix elements (LDMEs) of the $ψ(2S)$ meson, $\langle {\cal O}^{ψ(2S)}({^1S}_0^{[8]})\rangle$, $\langle {\cal O}^{ψ(2S)}({^3S}_1^{[8]})\rangle$, and $\langle {\cal O}^{ψ(2S)}({^3P}_0^{[8]})\rangle$, to 1001 data points of upolarized and polarized $ψ(2S)$ inclusive hadroproduction. We do four different fits, with filters on polarization and low to middle transverse momentum $p_T$. We find that a successful description of the data is only possible with a large low-$p_T$ cut. Our results are one order of magnitude more precise than previous determinations of these color octet long-distance matrix elements.
