论文标题
$ e^{+} e^{ - } \ rightarrow 2 \;喷气机$在轻度前一致的状态形式主义
Infrared Divergences in $e^{+}e^{-}\rightarrow 2\; jets$ in the Light Front Coherent State Formalism
论文作者
论文摘要
我们在光前序列的汉密尔顿扰动理论中使用连贯的状态基础研究光前量子染色体动力学中的红外（IR）差异。在计算哈密顿形式主义中的S-矩阵元素时，IR差异以消失的能量分母的形式出现。我们考虑该过程$ e^{+} e^{ - } \ rightarrow 2 \; $ \ Mathcal {o}（g^{2}）$在强耦合中，构建代表即将颗粒的连贯状态，并明确表明当矩阵元素在相干状态之间计算而不是fock状态时，“ true” ir ir差异取消了此订单的订单。
We study infrared (IR) divergences in light front quantum chromodynamics using a coherent state basis in light front time-ordered Hamiltonian perturbation theory. In computation of the S-matrix elements in Hamiltonian formalism, the IR divergences appear in the form of vanishing energy denominators. We consider the process $e^{+}e^{-}\rightarrow 2\; jets$ at $\mathcal{O}(g^{2})$ in strong coupling, construct the coherent state representing the outgoing particles, and explicitly show that the `true' IR divergences cancel to this order when the matrix elements are calculated between coherent states instead of Fock states.
