论文标题
重夸克结构函数$ f^{q \ bar {q}} _ {2}（x，x，q^{2}）$和$ f^{q \ bar {q}} _ {l} _ {l}（x，x，q^{2}）$
Heavy quarks structure functions $F^{q\bar{q}}_{2}(x, Q^{2})$ and $F^{q\bar{q}}_{L}(x, Q^{2})$ at the NLO approximation
论文作者
论文摘要
我们为重夸克结构提供紧凑的公式功能$ f^{q \ bar {q}} _ {2}（x，x，q^{2}）$和$ f^{q \ bar {q}}} _ {l} Gluon密度在接下来的顺序（NLO）近似和当前比率$ r^{q \ bar {q}} = f^{q \ bar {q}} _ {l} /f^{q \ bar {q \ bar {q}} _ {2} _ {2} $。为此，我们获得了重型夸克系数功能的拟合形式，用于在$ q^{2} $ values的宽范围内进行深弹性Lepton-Hadron散射。将获得的数值结果与HERA的实验数据以及KLN模型和MSTW2008预测的结果进行了比较。
We provide compact formulas for the heavy quarks structure functions $F^{q\bar{q}}_{2}(x, Q^{2})$ and $F^{q\bar{q}}_{L}(x, Q^{2})$, with $q = c, b$ and $t$, in $e^{-}p$ interaction with respect to the behavior of the gluon density at the next-to-leading order (NLO) approximation and present ratios $R ^{q\bar{q}} = F^{q\bar{q}}_{L} /F^{q\bar{q}}_{2}$ for these quarks. To do this, we obtain a fitted form of the heavy quark coefficient functions for deep-inelastic lepton-hadron scattering at a wide range of $Q^{2}$ values. The obtained numerical results are compared with experimental data from HERA and with the results from the KLN model and the MSTW2008 predictions.
